"CV of Prof. Dr. Dieter Horns" - Desy

1. Personal Details:
Dieter Horns
Dieter Horns
Name: Prof. Dr. Dieter Horns
Date and Place of Birth: August 30, 1970, Itzehoe, Germany
Marital status: Married with Konstantina Manolakou,
one child (Philipp Horns, born March 2004)
Nationality: German
Office: Institute for Experimental Physics,
Luruper Chaussee 149 (Geb. 68),
D-22761 Hamburg
Phone: +49 40 8998 2202
E-mail: dieter.horns@desy.de
Group URL: http://www-hess.desy.de
2. Professional Experience:
• University Professor (W2) at the Institute for Experimental Physics,
Univ. Hamburg (since October 2007, permanent after positive evaluation
since February 2009).
• Wissenschaftlicher Assistent (C1) and member of the research group
on High Energy Astrophysics of Prof. A. Santangelo at the Institute
for Astronomy and Astrophysics, Eberhard Karls University, Tübingen
(December 2004–September 2007).
• Post-doctoral position in the High Energy Astrophysics division of Prof.
H.J. Völk at the Max-Planck-Institut (MPI) für Kernphysik, Heidelberg
(January 2001– December 2004).
• Ph.D. student at the University of Hamburg (June 1997–December 2000).
3. Education:
• Ph.D. in Physics, University of Hamburg, December 2000
(thesis advisor: Prof. Dr. G. Heinzelmann).
• Diploma in Physics, University of Hamburg, June 1997.
• Physics student at the University of Hamburg (April 1991–June 1997)
with an interruption from November 1993–February 1995 due to civil
service (“Zivildienst”) doing home care for severely handicapped.
i

Dieter Horns
4. Teaching Experience:
• Lecturing at the University of Hamburg (since summer semester 2007);
regular courses include introductory courses (B.Sc.) on mechanics, thermodynamics,
nuclear and particle physics as well as advanced courses
on Astroparticle Physics (M.Sc.).
• Lecturing at the Eberhard Karls University, Tübingen; courses on astronomical
data-analyses, galaxies, and astroparticle physics (2005–2007).
• Tutoring at the Ruprecht-Karl University, Heidelberg (2002).
• Lab courses at the University of Hamburg (1997–2000).
• Various outreach activities (see Appendix).
5. Peer Reviewing:
• Review for funding agencies (DFG, DAAD, Alexander-von-Humboldt
foundation).
• Review for journals: A&A, ApJ, NIM A, MNRAS, Astroparticle Physics,
JCAP.
6. University related management tasks:
• Executive director of the Institute for Experimental Physics (2012).
• Vice executive director of the Institute for Experimental Physics (2011).
• Radiation safety officer (Strahlenschutzbevollmächtigter) for the Department
of Physics (since 2010).
• Member of the Studienreformkommission (since 2011).
• Member of the steering board of the Department of Physics (since 2011).
• Member of the safety board of the Department of Physics (since 2011).
• Member of the Promotionsausschuss (since 2010).
• Head of the selection commission for M.Sc. Physics (since 2009).
• Equal opportunity officer (since 2009).
7. Scientific Management tasks and responsibilities:
• Member of the editorial board for “Conference Papers in Astronomy and
Astrophysics” (since 2012).
• Elected vice spokesperson of the SFB 676 “Particles Strings and the
Early Universe” (since 2009).
• Member of the editorial board for “Advances in Astronomy and Astrophysics”
(since 2008).
ii

• Member of the Collaboration Board of H·E·S·S· 1 (since 2007).
Dieter Horns
• Project manager for the H·E·S·S·Phase II mirror alignment system (2006–
2007).
• Member of the calibration team for SIMBOL-X 2 (2006–2007).
• Member of the eROSITA 3 team (2006–2007).
• Coordinator for joint multi-wavelength observations with ROTSE 4 and
H·E·S·S· (since 2003).
• Supervisor of H·E·S·S· mirror quality control (2001-2003).
• Coordinator of the HEGRA observational shift and hardware support
(2001-2002).
• Chair of the HEGRA 5 observation time allocation committee (1999-
2002).
8. Organization of Conferences and Meetings:
• Annual Fall meeting of the Deutsche Astronomische Gesellschaft (SOC),
Hamburg (2012).
• Annual workshops of the SFB 676.
• H·E·S·S·collaboration meeting (2011).
• International Workshop on Cosmic Radiation Fields (SOC), Hamburg,
2010.
• International Team on “Multiwavelength Study of Very High Energy
Gamma-Ray Sources” at the ISSI, Bern (2007/2008).
• International Symposium on “High Energy Gamma-Ray Astronomy”,
Heidelberg (July 2004).
• International Workshop on “Science with 5@5”, Schloss Ringberg (Nov.
2003).
• International Workshop on “Relativistic winds and jets from compact
objects”, Schloss Ringberg (Dec. 2002).
• International Workshop on “Science with H·E·S·S·”, Schloss Ringberg
(Nov. 2001).
9. Publications and invited talks:
• 198 papers published in international peer-reviewed journals.
1 High Energy Stereoscopic System
2 an imaging hard X-ray project using formation flying technique
3 extended Roentgen Survey with an Imaging Telescope Array
4 Robotic Optical Transient Search Experiment
5 High Energy Gamma Ray Astronomy
iii

Dieter Horns
• 60 contributions to conference proceedings.
• 42 invited talks, plenary talks, colloquia, and lectures at schools.
• Regular outreach activities (talks for the general public, schools, teachers,
press releases).
• Editor of the Proceedings of “High Energy Gamma-Ray Astronomy”,
AIP Series Vol 745.
• Editor of the Proceedings of “Cosmic radiation fields”, 2010
• Bibliometry:
ADS Google scholar ISI
h-index: 59 48 51
citations: 10 580 8 258 8 348
10. Memberships:
11. Awards:
• International Astronomical union member (2009).
• German Association of Amateur Astronomers (1996).
• German Physical Society (1991).
• Award for good teaching by the Fachschaft Physik (2009/10).
• As member of the H.E.S.S. consortium: Descartes award (2006), Rossi-
Award (2010).
• Scholarship of the Congress Bundestag Youth exchange program (1987–
1988).
• “Jugend forscht” second state award winner in the Mathematics/Information
sciences section (Schleswig-Holstein, 1986).
12. Five representative publications (most recent listed first):
(a) D. Horns and M. Meyer Indications for a pair-production anomaly from the
propagation of VHE gamma-rays, JCAP 2, 33, 2012.
(b) M. Meyer, D. Horns, and H.S. Zechlin The Crab nebula as a standard candle
in very high-energy astrophysics, A&A 423, A2, 2010.
(c) H.E.S.S. Collaboration A low level of extragalactic background light as revealed
by γ-rays from blazars, Nature 440, 1018, 2006.
(d) D. Horns, F. Aharonian, A. Santangelo, A.I.D. Hoffmann, and C. Masterson
Nucleonic gamma-ray production in Vela X, A&A 451, L51, 2006.
(e) D. Horns TeV γ-radiation from Dark Matter annihilation in the Galactic
center, Physics Letters B 607, 225, 2005.
iv

REFEREED PUBLICATIONS Dieter Horns
Refereed publications
[1] D. Horns, L. Maccione, A. Mirizzi, and M. Roncadelli. Probing axionlike particles with the
ultraviolet photon polarization from active galactic nuclei in radio galaxies. Phys. Rev. D, 85, 085021
(Apr 2012). 1203.2184.
[2] HESS Collaboration (199 authors). Discovery of VHE emission towards the Carina arm region
with the H.E.S.S. telescope array: HESS J1018-589. A&A, 541, A5 (May 2012). 1203.3215.
[3] HESS Collaboration (199 authors). A multiwavelength view of the flaring state of PKS 2155-304
in 2006. A&A, 539, A149 (March 2012). 1201.4135.
[4] D. Horns and M. Meyer. Indications for a pair-production anomaly from the propagation of VHE
gamma-rays. JCAP, 2, 33 (February 2012). 1201.4711.
[5] HESS Collaboration (199 authors). Search for Dark Matter Annihilation Signals from the Fornax
Galaxy Cluster with H.E.S.S. (accepted for publ. in ApJ) ArXiv e-prints (February 2012).
1202.5494.
[6] M. Meyer, M. Raue, D. Mazin, and D. Horns. Limits on the extragalactic background light in the
Fermi era. (accepted for publ. in A&A) ArXiv e-prints (February 2012). 1202.2867.
[7] HESS Collaboration, MAGIC Collaboration, VERITAS Collaboration (447 authors). The 2010
Very High Energy γ-Ray Flare and 10 Years of Multi-wavelength Observations of M 87. ApJ, 746,
151 (February 2012). 1111.5341.
[8] A. Maurer, M. Raue, T. Kneiske, D. Horns, D. Elsässer, and P. H. Hauschildt. Dark Matter
Powered Stars: Constraints from the Extragalactic Background Light. ApJ, 745, 166 (February
2012). 1201.1305.
[9] HESS Collaboration (199 authors), H.S.L. Costamante, S. Fegan, and M. Ajello. Discovery
of hard-spectrum γ-ray emission from the BL Lacertae object 1ES 0414+009. ApJ, 538, A103
(February 2012).
[10] H.-S. Zechlin, M. V. Fernandes, D. Elsässer, and D. Horns. Dark matter subhaloes as gammaray
sources and candidates in the first Fermi-LAT catalogue. A&A, 538, A93 (February 2012).
1111.3514.
[11] HESS Collaboration (200 authors). Discovery of extended VHE γ-ray emission from the vicinity
of the young massive stellar cluster Westerlund 1. A&A, 537, A114 (January 2012).
[12] CTA Collaboration (674 authors). Design concepts for the Cherenkov Telescope Array CTA: an
advanced facility for ground-based high-energy gamma-ray astronomy. Experimental Astronomy,
32, 193 (December 2011).
[13] D. E. Harris, F. Massaro, C. C. Cheung, D. Horns, M. Raue, Ł. Stawarz, S. Wagner, P. Colin,
D. Mazin, R. Wagner, M. Beilicke, S. LeBohec, M. Hui, and R. Mukherjee. An Experiment to
Locate the Site of TeV Flaring in M87. ApJ, 743, 177 (December 2011). 1111.5343.
[14] M. Tluczykont, D. Hampf, D. Horns, T. Kneiske, R. Eichler, R. Nachtigall, and G. Rowell. The
ground-based large-area wide-angle γ-ray and cosmic-ray experiment HiSCORE. Advances in Space
Research, 48, 1935 (December 2011). 1108.5880.
[15] D. Hampf, G. Rowell, N. Wild, T. Sudholz, D. Horns, and M. Tluczykont. Measurement of night
sky brightness in southern Australia. Advances in Space Research, 48, 1017 (September 2011).
1105.1251.
[16] HESS Collaboration, Fermi LAT Collaboration (348 authors). Simultaneous multi-wavelength
campaign on PKS 2005-489 in a high state. A&A, 533, A110 (September 2011). 1111.3331.
[17] HESS Collaboration (197 authors). Discovery of the source HESS J1356-645 associated with the
young and energetic PSR J1357-6429. A&A, 533, A103 (September 2011). 1108.2855.
[18] A. P. Lobanov, D. Horns, and T. W. B. Muxlow. VLBI imaging of a flare in the Crab nebula:
more than just a spot. A&A, 533, A10 (September 2011). 1107.0182.
i

Dieter Horns REFEREED PUBLICATIONS
[19] HESS Collaboration (197 authors). H.E.S.S. Observations of the Globular Clusters NGC 6388
and M15 and Search for a Dark Matter Signal. ApJ, 735, 12 (July 2011). 1104.2548.
[20] HESS Collaboration (195 authors). Very-high-energy gamma-ray emission from the direction of the
Galactic globular cluster Terzan 5. A&A, 531, L18 (July 2011). 1106.4069.
[21] HESS Collaboration (125 authors). Primary particle acceleration above 100 TeV in the shell-type
supernova remnant RX J1713.7 - 3946 with deep H.E.S.S. observations (Corrigendum). A&A,
531, C1 (July 2011).
[22] M. A. Kastendieck, M. C. B. Ashley, and D. Horns. Long-term optical variability of PKS 2155-
304. A&A, 531, A123 (July 2011). 1108.1346.
[23] HESS Collaboration (196 authors). A new SNR with TeV shell-type morphology: HESS J1731-
347. A&A, 531, A81 (July 2011). 1105.3206.
[24] HESS Collaboration (199 authors), T.H. Burnett, and A.B. Hill. HESS J1943+213: a candidate
extreme BL Lacertae object. A&A, 529, A49 (May 2011). 1103.0763.
[25] HESS Collaboration (194 authors). Search for a Dark Matter Annihilation Signal from the Galactic
Center Halo with H.E.S.S. Physical Review Letters, 106, 161301 (April 2011). 1103.3266.
[26] HESS Collaboration (198 authors). Search for Lorentz Invariance breaking with a likelihood fit of
the PKS 2155-304 flare data taken on MJD 53944. Astroparticle Physics, 34, 738 (April 2011).
1101.3650.
[27] HESS Collaboration (197 authors), G. Dubner, and E. Giacani. Detection of very-high-energy
γ-ray emission from the vicinity of PSR B1706-44 and G 343.1-2.3 with H.E.S.S. A&A, 528,
A143 (April 2011). 1102.0773.
[28] HESS Collaboration (194 authors). H.E.S.S. constraints on dark matter annihilations towards the
sculptor and carina dwarf galaxies. Astroparticle Physics, 34, 608 (March 2011). 1012.5602.
[29] M. Tavani, A. Bulgarelli, V. Vittorini, A. Pellizzoni, E. Striani, P. Caraveo, M. C. Weisskopf,
A. Tennant, G. Pucella, A. Trois, E. Costa, Y. Evangelista, C. Pittori, F. Verrecchia, E. Del
Monte, R. Campana, M. Pilia, A. De Luca, I. Donnarumma, D. Horns, C. Ferrigno, C. O.
Heinke, M. Trifoglio, F. Gianotti, S. Vercellone, A. Argan, G. Barbiellini, P. W. Cattaneo, A. W.
Chen, T. Contessi, F. D’Ammando, G. DeParis, G. Di Cocco, G. Di Persio, M. Feroci, A. Ferrari,
M. Galli, A. Giuliani, M. Giusti, C. Labanti, I. Lapshov, F. Lazzarotto, P. Lipari, F. Longo,
F. Fuschino, M. Marisaldi, S. Mereghetti, E. Morelli, E. Moretti, A. Morselli, L. Pacciani,
F. Perotti, G. Piano, P. Picozza, M. Prest, M. Rapisarda, A. Rappoldi, A. Rubini, S. Sabatini,
P. Soffitta, E. Vallazza, A. Zambra, D. Zanello, F. Lucarelli, P. Santolamazza, P. Giommi,
L. Salotti, and G. F. Bignami. Discovery of Powerful Gamma-Ray Flares from the Crab Nebula.
Science, 331, 736 (February 2011). 1101.2311.
[30] HESS Collaboration (187 authors), Y. Fukui, N. Furukawa, A. Ohama, H. Sano, J. Dawson, and
A. Kawamura. Revisiting the Westerlund 2 field with the HESS telescope array. A&A, 525, A46
(January 2011). 1009.3012.
[31] HESS Collaboration (169 authors). Discovery and follow-up studies of the extended, off-plane, VHE
gamma-ray source HESS J1507-622. A&A, 525, A45 (January 2011). 1010.4907.
[32] M. Meyer, D. Horns, and H.-S. Zechlin. The Crab Nebula as a standard candle in very high-energy
astrophysics. A&A, 523, A2 (November 2010). 1008.4524.
[33] HESS Collaboration (169 authors). Discovery of VHE γ-rays from the BL Lacertae object PKS
0548-322. A&A, 521, A69 (October 2010). 1006.5289.
[34] HESS Collaboration (189 authors). VHE γ-ray emission of PKS 2155-304: spectral and temporal
variability. A&A, 520, A83 (September 2010). 1005.3702.
[35] HESS Collaboration (180 authors). First detection of VHE γ-rays from SN 1006 by HESS. A&A,
516, A62 (June 2010). 1004.2124.
ii

REFEREED PUBLICATIONS Dieter Horns
[36] HESS Collaboration (186 authors). Multi-wavelength observations of H 2356-309. A&A, 516,
A56 (June 2010). 1004.2089.
[37] HESS Collaboration (127 authors). Erratum to Observations of the Sagittarius dwarf galaxy by
the HESS experiment and search for a dark matter signal [Astropart. Phys. 29(1) (2008) 55-62].
Astroparticle Physics, 33, 274 (May 2010).
[38] HESS Collaboration (181 authors). Localizing the VHE γ-ray source at the Galactic Centre.
MNRAS, 402, 1877 (March 2010). 0911.1912.
[39] F. Yuan, P. Schady, J. L. Racusin, R. Willingale, T. Krühler, P. T. O’Brien, J. Greiner, S. R.
Oates, E. S. Rykoff, F. Aharonian, C. W. Akerlof, M. C. B. Ashley, S. D. Barthelmy, R. Filgas,
H. A. Flewelling, N. Gehrels, E. Göğüş, T. Güver, D. Horns, Ü. Kızıloˇglu, H. A. Krimm, T. A.
McKay, M. E. Özel, A. Phillips, R. M. Quimby, G. Rowell, W. Rujopakarn, B. E. Schaefer, W. T.
Vestrand, J. C. Wheeler, and J. Wren. GRB 081008: From Burst to Afterglow and the Transition
Phase in Between. ApJ, 711, 870 (March 2010). 1002.0581.
[40] A. Abramowski, S. Gillessen, D. Horns, and H.-S. Zechlin. Locating the very high energy source in
the Galactic Centre with milliarcsecond accuracy. MNRAS, 402, 1342 (February 2010). 1002.2364.
[41] HESS Collaboration (172 authors). PKS 2005-489 at VHE: four years of monitoring with HESS
and simultaneous multi-wavelength observations. A&A, 511, A52 (February 2010). 0911.2709.
[42] HESS Collaboration (175 authors). HESS upper limits on very high energy gamma-ray emission
from the microquasar GRS 1915+105. A&A, 508, 1135 (December 2009).
[43] HESS Collaboration (170 authors). Probing the ATIC peak in the cosmic-ray electron spectrum
with H.E.S.S. A&A, 508, 561 (December 2009). 0905.0105.
[44] HESS Collaboration (171 authors). Detection of Gamma Rays from a Starburst Galaxy. Science,
326, 1080 (November 2009). 0909.4651.
[45] HESS Collaboration (167 authors). Very high energy γ-ray observations of the binary PSR B1259-
63/SS2883 around the 2007 Periastron. A&A, 507, 389 (November 2009).
[46] HESS Collaboration (159 authors). Spectrum and variability of the Galactic center VHE γ-ray
source HESS J1745-290. A&A, 503, 817 (September 2009). 0906.1247.
[47] HESS Collaboration (166 authors). Simultaneous multiwavelength observations of the second exceptional
γ-ray flare of PKS 2155-304 in July 2006. A&A, 502, 749 (August 2009). 0906.2002.
[48] HESS Collaboration (165 authors). Constraints on the multi-TeV particle population in the Coma
galaxy cluster with HESS observations. A&A, 502, 437 (August 2009). 0907.0727.
[49] VERITAS Collaboration and VLBA M87 Monitoring Team and HESS Collaboration and
MAGIC Collaboration (393 authors). Radio Imaging of the Very-High-Energy γ-Ray Emission
Region in the Central Engine of a Radio Galaxy. Science, 325, 444 (July 2009). 0908.0511.
[50] HESS Collaboration (159 authors). Detection of very high energy radiation from HESS J1908+063
confirms the Milagro unidentified source MGRO J1908+06. A&A, 499, 723 (June 2009). 0904.
3409.
[51] HESS Collaboration and Femi-LAT Collaboration (326 authors). Simultaneous Observations of
PKS 2155-304 with HESS, Fermi, RXTE, and Atom: Spectral Energy Distributions and Variability
in a Low State. ApJ, 696, L150 (May 2009). 0903.2924.
[52] HESS Collaboration (159 authors). HESS upper limit on the very high energy γ-ray emission from
the globular cluster 47 Tucanae. A&A, 499, 273 (May 2009). 0904.0361.
[53] HESS Collaboration (166 authors). Discovery of Very High Energy γ-Ray Emission from Centaurus
A with H.E.S.S. ApJ, 695, L40 (April 2009). 0903.1582.
[54] HESS Collaboration (154 authors). Discovery of Gamma-Ray Emission From the Shell-Type Supernova
Remnant RCW 86 With HESS. ApJ, 692, 1500 (February 2009). 0810.2689.
[55] HESS Collaboration (155 authors). HESS observations of γ-ray bursts in 2003-2007. A&A, 495,
505 (February 2009). 0901.2187.
iii

Dieter Horns REFEREED PUBLICATIONS
[56] HESS Collaboration (157 authors). Very high energy gamma-ray observations of the galaxy clusters
Abell 496 and Abell 85 with HESS. A&A, 495, 27 (February 2009). 0812.1638.
[57] A. D. Hoffmann, D. Klochkov, A. Santangelo, D. Horns, A. Segreto, R. Staubert, and
G. Pühlhofer. INTEGRAL observation of hard X-ray variability of the TeV binary LS 5039/RX
J1826.2-1450. A&A, 494, L37 (February 2009). 0812.0766.
[58] HESS Collaboration (155 authors). A Search for a Dark Matter Annihilation Signal Toward the
Canis Major Overdensity with H.E.S.S. ApJ, 691, 175 (January 2009). 0809.3894.
[59] HESS Collaboration (145 authors). HESS Observations of the Prompt and Afterglow Phases of
GRB 060602B. ApJ, 690, 1068 (January 2009). 0809.2334.
[60] HESS Collaboration (156 authors). Energy Spectrum of Cosmic-Ray Electrons at TeV Energies.
Physical Review Letters, 101, 261104 (December 2008). 0811.3894.
[61] HESS Collaboration (155 authors). Simultaneous HESS and Chandra observations of Sagitarius A ∗
during an X-ray flare. A&A, 492, L25 (December 2008). 0812.3762.
[62] HESS Collaboration (151 authors). Discovery of a VHE gamma-ray source coincident with the
supernova remnant CTB 37A. A&A, 490, 685 (November 2008). 0803.0702.
[63] D. Horns. High-(Energy)-Lights - The Very High Energy Gamma-Ray Sky . volume 20 of Reviews
in Modern Astronomy, 167 (October 2008). 0808.3744.
[64] HESS Collaboration (153 authors). Limits on an Energy Dependence of the Speed of Light from
a Flare of the Active Galaxy PKS 2155-304. Physical Review Letters, 101, 170402 (October
2008). 0810.3475.
[65] HESS Collaboration (150 authors) and G. Bertone. Search for gamma rays from dark matter
annihilations around intermediate mass black holes with the HESS experiment. Phys. Rev. D, 78,
072008 (October 2008). 0806.2981.
[66] HESS Collaboration (143 authors). HESS upper limits for Kepler’s supernova remnant. A&A,
488, 219 (September 2008). 0806.3347.
[67] HESS Collaboration (149 authors). Chandra and HESS observations of the supernova remnant CTB
37B. A&A, 486, 829 (August 2008). 0803.0682.
[68] J. Barnstedt, R. Staubert, A. Santangelo, C. Ferrigno, D. Horns, D. Klochkov, P. Kretschmar,
I. Kreykenbohm, A. Segreto, and J. Wilms. INTEGRAL observations of the variability of OAO
1657-415. A&A, 486, 293 (July 2008). 0805.1811.
[69] HESS collaboration (144 authors). Discovery of very-high-energy γ-ray emission from the vicinity
of PSR J1913+1011 with HESS. A&A, 484, 435 (June 2008). 0802.3841.
[70] HESS Collaboration (142 authors). Exploring a SNR/molecular cloud association within HESS
J1745-303. A&A, 483, 509 (May 2008). 0803.2844.
[71] G. Fossati, J. H. Buckley, I. H. Bond, S. M. Bradbury, D. A. Carter-Lewis, Y. C. K. Chow,
W. Cui, A. D. Falcone, J. P. Finley, J. A. Gaidos, J. Grube, J. Holder, D. Horan, D. Horns, M. M.
Jordan, D. B. Kieda, J. Kildea, H. Krawczynski, F. Krennrich, M. J. Lang, S. LeBohec, K. Lee,
P. Moriarty, R. A. Ong, D. Petry, J. Quinn, G. H. Sembroski, S. P. Wakely, and T. C. Weekes.
Multiwavelength Observations of Markarian 421 in 2001 March: An Unprecedented View on the
X-Ray/TeV Correlated Variability. ApJ, 677, 906 (April 2008). 0710.4138.
[72] HESS Collaboration (145 authors). Discovery of VHE γ-rays from the high-frequency-peaked BL
Lacertae object RGB J0152+017. A&A, 481, L103 (April 2008). 0802.4021.
[73] HESS Collaboration (141 authors). Discovery of very high energy gamma-ray emission coincident
with molecular clouds in the W 28 (G6.4-0.1) field. A&A, 481, 401 (April 2008). 0801.3555.
[74] HESS Collaboration (127 authors). Observations of the Sagittarius dwarf galaxy by the HESS
experiment and search for a dark matter signal. Astroparticle Physics, 29, 55 (February 2008).
0711.2369.
iv

REFEREED PUBLICATIONS Dieter Horns
[75] HESS Collaboration (144 authors). Upper limits from HESS active galactic nuclei observations in
2005-2007. A&A, 478, 387 (February 2008). 0711.3196.
[76] HESS Collaboration (144 authors). HESS observations and VLT spectroscopy of PG 1553+113.
A&A, 477, 481 (January 2008). 0710.5740.
[77] HESS Collaboration (144 authors). HESS very-high-energy gamma-ray sources without identified
counterparts. A&A, 477, 353 (January 2008). 0712.1173.
[78] D. Horns and H.E.S.S. Collaboration. Indirect search for Dark Matter with H.E.S.S. Advances
in Space Research, 41, 2024 (2008). arXiv:astro-ph/0702373.
[79] S. A. Yost, F. Aharonian, C. W. Akerlof, M. C. B. Ashley, S. Barthelmy, N. Gehrels, E. Göğüş,
T. Güver, D. Horns, Ü. Kızıloˇglu, H. A. Krimm, T. A. McKay, M. Özel, A. Phillips, R. M.
Quimby, G. Rowell, W. Rujopakarn, E. S. Rykoff, B. E. Schaefer, D. A. Smith, H. F. Swan,
W. T. Vestrand, J. C. Wheeler, J. Wren, and F. Yuan. The Dark Side of ROTSE-III Prompt GRB
Observations. ApJ, 669, 1107 (November 2007). 0707.3132.
[80] A. E. Ruiz-Velasco, H. Swan, E. Troja, D. Malesani, J. P. U. Fynbo, R. L. C. Starling, D. Xu,
F. Aharonian, C. Akerlof, M. I. Andersen, M. C. B. Ashley, S. D. Barthelmy, D. Bersier, J. M.
Castro Cerón, A. J. Castro-Tirado, N. Gehrels, E. Göğüş, J. Gorosabel, C. Guidorzi, T. Güver,
J. Hjorth, D. Horns, K. Y. Huang, P. Jakobsson, B. L. Jensen, Ü. Kızıloğlu, C. Kouveliotou,
H. A. Krimm, C. Ledoux, A. J. Levan, T. Marsh, T. McKay, A. Melandri, B. Milvang-Jensen,
C. G. Mundell, P. T. O’Brien, M. Özel, A. Phillips, R. Quimby, G. Rowell, W. Rujopakarn, E. S.
Rykoff, B. E. Schaefer, J. Sollerman, N. R. Tanvir, C. C. Thöne, Y. Urata, W. T. Vestrand, P. M.
Vreeswijk, D. Watson, J. C. Wheeler, R. A. M. J. Wijers, J. Wren, S. A. Yost, F. Yuan, M. Zhai,
and W. K. Zheng. Detection of GRB 060927 at z 5.47: Implications for the Use of Gamma-Ray
Bursts as Probes of the End of the Dark Ages. ApJ, 669, 1 (November 2007). 0706.1257.
[81] HESS Collaboration (144 authors). New constraints on the mid-IR EBL from the HESS discovery
of VHE γ-rays from 1ES 0229+200. A&A, 475, L9 (November 2007). 0709.4584.
[82] K. Manolakou, D. Horns, and J. G. Kirk. Spectral evolution of non-thermal electron distributions
in intense radiation fields. A&A, 474, 689 (November 2007). 0708.1516.
[83] HESS Collaboration (144 authors). Discovery of VHE γ-rays from the distant BL Lacertae 1ES
0347-121. A&A, 473, L25 (October 2007). 0708.3021.
[84] S. Rügamer, M. Hayashida, D. Mazin, R. Firpo, K. Mannheim, M. Teshima, MAGIC Collaboration,
D. Horns, L. Costamante, S. Schwarzburg, S. Wagner, H.E.S.S. Collaboration, T. Takahashi,
J. Kataoka, G. Madejski, M. Ushio, Suzaku Team, E. Lindfors, L. Takalo, and KVA Team. Wide
Range Multifrequency Observations of Northern TeV Blazars. Astronomische Nachrichten, 328,
623 (September 2007).
[85] HESS Collaboration (128 authors). Discovery of two candidate pulsar wind nebulae in very-highenergy
gamma rays. A&A, 472, 489 (September 2007). 0705.1605.
[86] HESS Collaboration (136 authors). An Exceptional Very High Energy Gamma-Ray Flare of PKS
2155-304. ApJ, 664, L71 (August 2007). 0706.0797.
[87] S. Piraino, A. Santangelo, T. di Salvo, P. Kaaret, D. Horns, R. Iaria, and L. Burderi. BeppoSAX
observation of 4U 1705-44: detection of hard X-ray emission in the soft state. A&A, 471, L17
(August 2007). 0706.2784.
[88] HESS Collaboration (126 authors). Detection of VHE gamma-ray emission from the distant blazar
1ES 1101-232 with HESS and broadband characterisation. A&A, 470, 475 (August 2007). 0705.
2946.
[89] S. Funk, J. A. Hinton, Y. Moriguchi, F. A. Aharonian, Y. Fukui, W. Hofmann, D. Horns,
G. Pühlhofer, O. Reimer, G. Rowell, R. Terrier, J. Vink, and S. J. Wagner. XMM-Newton
observations of HESS J1813-178 reveal a composite Supernova remnant. A&A, 470, 249 (July
2007). arXiv:astro-ph/0611646.
v

Dieter Horns REFEREED PUBLICATIONS
[90] D. Horns, A. I. D. Hoffmann, A. Santangelo, F. A. Aharonian, and G. P. Rowell. XMM-Newton
observations of the first unidentified TeV gamma-ray source TeV J2032+4130. A&A, 469, L17 (July
2007). 0705.0009.
[91] HESS Collaboration (129 authors), Y. Moriguchi, and Y. Fukui. Discovery of a point-like veryhigh-energy
γ-ray source in Monoceros. A&A, 469, L1 (July 2007). 0704.0171.
[92] A. I. D. Hoffmann, D. Horns, and A. Santangelo. INTEGRAL observations of TeV plerions.
Astrophys. and Space Science, 309, 215 (June 2007). arXiv:astro-ph/0609423.
[93] D. Horns, F. Aharonian, A. I. D. Hoffmann, and A. Santangelo. Nucleonic gamma-ray production
in pulsar wind nebulae. Astrophys. and Space Science, 309, 189 (June 2007). arXiv:astro-ph/
0609386.
[94] HESS Collaboration (127 authors). Detection of extended very-high-energy γ-ray emission towards
the young stellar cluster Westerlund 2. A&A, 467, 1075 (June 2007). arXiv:astro-ph/0703427.
[95] HESS Collaboration (127 authors). H.E.S.S. Observations of the Supernova Remnant RX J0852.0-
4622: Shell-Type Morphology and Spectrum of a Widely Extended Very High Energy Gamma-Ray
Source. ApJ, 661, 236 (May 2007). arXiv:astro-ph/0612495.
[96] HESS Collaboration (129 authors). Search for pulsed VHE gamma-ray emission from young pulsars
with HESS. A&A, 466, 543 (May 2007). arXiv:astro-ph/0702336.
[97] D. Horns and HESS Collaboration. Study of Galactic Sources with H.E.S.S. Journal of Physics
Conference Series, 60, 135 (March 2007).
[98] D. Horns and HESS Collaboration. H.E.S.S.: Status and future plan. Journal of Physics
Conference Series, 60, 119 (March 2007).
[99] S. A. Yost, H. F. Swan, E. S. Rykoff, F. Aharonian, C. W. Akerlof, A. Alday, M. C. B. Ashley,
S. Barthelmy, D. Burrows, D. L. Depoy, R. J. Dufour, J. D. Eastman, R. D. Forgey, N. Gehrels,
E. Göğüş, T. Güver, J. P. Halpern, L. C. Hardin, D. Horns, Ü. Kiziloglu, H. A. Krimm, S. Lepine,
E. P. Liang, J. L. Marshall, T. A. McKay, T. Mineo, N. Mirabal, M. Özel, A. Phillips, J. L. Prieto,
R. M. Quimby, P. Romano, G. Rowell, W. Rujopakarn, B. E. Schaefer, J. M. Silverman, R. Siverd,
M. Skinner, D. A. Smith, I. A. Smith, S. Tonnesen, E. Troja, W. T. Vestrand, J. C. Wheeler,
J. Wren, F. Yuan, and B. Zhang. Exploring Broadband GRB Behavior during γ-Ray Emission.
ApJ, 657, 925 (March 2007). arXiv:astro-ph/0611414.
[100] D. Klochkov, D. Horns, A. Santangelo, R. Staubert, A. Segreto, C. Ferrigno, P. Kretschmar,
I. Kreykenbohm, A. La Barbera, N. Masetti, M. McCollough, K. Pottschmidt, G. Schönherr,
and J. Wilms. INTEGRAL and Swift observations of EXO 2030+375 during a giant outburst.
A&A, 464, L45 (March 2007). arXiv:astro-ph/0701791.
[101] HESS Collaboration (126 authors). Primary particle acceleration above 100 TeV in the shell-type
supernova remnant RX J1713.7-3946 with deep HESS observations. A&A, 464, 235 (March
2007). arXiv:astro-ph/0611813.
[102] HESS Collaboration (124 authors). First ground-based measurement of atmospheric Cherenkov light
from cosmic rays. Phys. Rev. D, 75, 042004 (February 2007). arXiv:astro-ph/0701766.
[103] HESS Collaboration (123 authors). Fast Variability of Tera-Electron Volt γ Rays from the Radio
Galaxy M87. Science, 314, 1424 (December 2006). arXiv:astro-ph/0612016.
[104] HESS Collaboration (107 authors). Publisher’s Note: HESS Observations of the Galactic Center
Region and Their Possible Dark Matter Interpretation [Phys. Rev. Lett. 97, 221102 (2006)].
Physical Review Letters, 97, 249901 (December 2006).
[105] HESS Collaboration (107 authors). HESS Observations of the Galactic Center Region and Their
Possible Dark Matter Interpretation. Physical Review Letters, 97, 221102 (December 2006).
arXiv:astro-ph/0610509.
[106] HESS Collaboration (115 authors). 3.9 day orbital modulation in the TeV γ-ray flux and spectrum
from the X-ray binary LS 5039. A&A, 460, 743 (December 2006). arXiv:astro-ph/0607192.
vi

REFEREED PUBLICATIONS Dieter Horns
[107] HESS Collaboration (115 authors). Energy dependent γ-ray morphology in the pulsar wind nebula
HESS J1825-137. A&A, 460, 365 (December 2006). arXiv:astro-ph/0607548.
[108] HESS Collaboration (107 authors). Observations of the Crab nebula with HESS. A&A, 457, 899
(October 2006). arXiv:astro-ph/0607333.
[109] S. A. Yost, F. Aharonian, C. W. Akerlof, M. C. B. Ashley, S. Barthelmy, N. Gehrels, E. Göğüş,
T. Güver, D. Horns, Ü. Kızıloˇglu, H. A. Krimm, T. A. McKay, M. Özel, A. Phillips, R. M.
Quimby, G. Rowell, W. Rujopakarn, E. S. Rykoff, B. E. Schaefer, D. A. Smith, H. F. Swan,
W. T. Vestrand, J. C. Wheeler, J. Wren, and F. Yuan. Status of the ROTSE-III telescope network.
Astronomische Nachrichten, 327, 803 (September 2006).
[110] HESS Collaboration (114 authors). Discovery of the two ”wings” of the Kookaburra complex in
VHE γ-rays with HESS. A&A, 456, 245 (September 2006). arXiv:astro-ph/0606311.
[111] HESS Collaboration (105 authors). Discovery of very high energy γ-ray emission from the BL
Lacertae object H 2356-309 with the HESS Cherenkov telescopes. A&A, 455, 461 (August 2006).
arXiv:astro-ph/0607569.
[112] HEGRA Collaboration (52 authors). Observations of 14 young open star clusters with the HEGRA
system of Cherenkov telescopes. A&A, 454, 775 (August 2006).
[113] D. Horns, F. Aharonian, A. Santangelo, A. I. D. Hoffmann, and C. Masterson. Nucleonic
gamma-ray production in Vela X. A&A, 451, L51 (June 2006).
[114] HESS Collaboration (102 authors). A low level of extragalactic background light as revealed by
γ-rays from blazars. Nature, 440, 1018 (April 2006). arXiv:astro-ph/0508073.
[115] HESS Collaboration (101 authors). A detailed spectral and morphological study of the gammaray
supernova remnant RX J1713.7-3946 with HESS. A&A, 449, 223 (April 2006). arXiv:
astro-ph/0511678.
[116] R. M. Quimby, E. S. Rykoff, S. A. Yost, F. Aharonian, C. W. Akerlof, K. Alatalo, M. C. B.
Ashley, E. Göğüş, T. Güver, D. Horns, R. L. Kehoe, Ü. Kιzιloğlu, T. A. Mckay, M. Özel,
A. Phillips, B. E. Schaefer, D. A. Smith, H. F. Swan, W. T. Vestrand, J. C. Wheeler, and J. Wren.
Early-Time Observations of the GRB 050319 Optical Transient. ApJ, 640, 402 (March 2006).
arXiv:astro-ph/0511421.
[117] HESS Collaboration (106 authors). First detection of a VHE gamma-ray spectral maximum from
a cosmic source: HESS discovery of the Vela X nebula. A&A, 448, L43 (March 2006). arXiv:
astro-ph/0601575.
[118] HESS Collaboration (103 authors). Evidence for VHE γ-ray emission from the distant BL Lac PG
1553+113. A&A, 448, L19 (March 2006). arXiv:astro-ph/0601545.
[119] HESS Collaboration (102 authors). Discovery of very-high-energy γ-rays from the Galactic Centre
ridge. Nature, 439, 695 (February 2006). arXiv:astro-ph/0603021.
[120] E. S. Rykoff, V. Mangano, S. A. Yost, R. Sari, F. Aharonian, C. W. Akerlof, M. C. B. Ashley,
S. D. Barthelmy, D. N. Burrows, N. Gehrels, E. Göˇgüş, T. Güver, D. Horns, Ü. Kızıloˇglu,
H. A. Krimm, T. A. McKay, M. Özel, A. Phillips, R. M. Quimby, G. Rowell, W. Rujopakarn,
B. E. Schaefer, D. A. Smith, H. F. Swan, W. T. Vestrand, J. C. Wheeler, J. Wren, and F. Yuan.
The Anomalous Early Afterglow of GRB 050801. ApJ, 638, L5 (February 2006). arXiv:
astro-ph/0601350.
[121] S. A. Yost, K. Alatalo, E. S. Rykoff, F. Aharonian, C. W. Akerlof, M. C. B. Ashley, C. H. Blake,
J. S. Bloom, M. Boettcher, E. E. Falco, E. Göˇgüş, T. Güver, J. P. Halpern, D. Horns, M. Joshi,
Ü. Kızıloˇglu, T. A. McKay, N. Mirabal, M. Özel, A. Phillips, R. M. Quimby, W. Rujopakarn, B. E.
Schaefer, J. C. Shields, M. Skrutskie, D. A. Smith, D. L. Starr, H. F. Swan, A. Szentgyorgyi,
W. T. Vestrand, J. C. Wheeler, and J. Wren. Optical Light Curve and Cooling Break of GRB
050502A. ApJ, 636, 959 (January 2006). arXiv:astro-ph/0509594.
[122] HESS Collaboration (100 authors). The H.E.S.S. Survey of the Inner Galaxy in Very High Energy
Gamma Rays. ApJ, 636, 777 (January 2006). arXiv:astro-ph/0510397.
vii

Dieter Horns REFEREED PUBLICATIONS
[123] HESS Collaboration (100 authors). A possible association of the new VHE γ-ray source HESS
J1825-137 with the pulsar wind nebula G 18.0 0.7. A&A, 442, L25 (November 2005). arXiv:
astro-ph/0510394.
[124] HESS Collaboration (100 authors). Multi-wavelength observations of PKS 2155-304 with HESS.
A&A, 442, 895 (November 2005). arXiv:astro-ph/0506593.
[125] E. S. Rykoff, S. A. Yost, H. A. Krimm, F. Aharonian, C. W. Akerlof, K. Alatalo, M. C. B.
Ashley, S. D. Barthelmy, N. Gehrels, E. Göˇgüş, T. Güver, D. Horns, Ü. Kızıloˇglu, T. A. McKay,
M. Özel, A. Phillips, R. M. Quimby, W. Rujopakarn, B. E. Schaefer, D. A. Smith, H. F. Swan,
W. T. Vestrand, J. C. Wheeler, and J. Wren. Prompt Optical Detection of GRB 050401 with
ROTSE-IIIa. ApJ, 631, L121 (October 2005). arXiv:astro-ph/0508495.
[126] E. S. Rykoff, F. Aharonian, C. W. Akerlof, K. Alatalo, M. C. B. Ashley, T. Güver, D. Horns, R. L.
Kehoe, Ü. Kiziloˇglu, T. A. McKay, M. Özel, A. Phillips, R. M. Quimby, B. E. Schaefer, D. A.
Smith, H. F. Swan, W. T. Vestrand, J. C. Wheeler, J. Wren, and S. A. Yost. A Search for Untriggered
GRB Afterglows with ROTSE-III. ApJ, 631, 1032 (October 2005). arXiv:astro-ph/0506442.
[127] HESS Collaboration (100 authors). A search for very high energy γ-ray emission from the starburst
galaxy NGC 253 with HESS. A&A, 442, 177 (October 2005). arXiv:astro-ph/0507370.
[128] HESS Collaboration (100 authors), J.G. Kirk, and O. Skjæraasen. Discovery of the binary pulsar
PSR B1259-63 in very-high-energy gamma rays around periastron with HESS. A&A, 442, 1
(October 2005). arXiv:astro-ph/0506280.
[129] HESS Collaboration (100 authors). Observations of selected AGN with HESS. A&A, 441, 465
(October 2005). arXiv:astro-ph/0507207.
[130] HESS Collaboration (100 authors). Serendipitous discovery of the unidentified extended TeV γ-ray
source HESS J1303-631. A&A, 439, 1013 (September 2005). arXiv:astro-ph/0505219.
[131] HEGRA Collaboration (53 authors). TeV gamma-ray observations of SS-433 and a survey of the
surrounding field with the HEGRA IACT-System. A&A, 439, 635 (August 2005).
[132] HESS Collaboration (103 authors). Discovery of Very High Energy Gamma Rays Associated with
an X-ray Binary. Science, 309, 746 (July 2005). arXiv:astro-ph/0508298.
[133] HESS Collaboration (100 authors). Detection of TeV γ-ray emission from the shell-type supernova
remnant RX J0852.0-4622 with HESS. A&A, 437, L7 (July 2005). arXiv:astro-ph/0505380.
[134] HESS Collaboration (97 authors). Upper limits to the SN1006 multi-TeV gamma-ray flux from
HESS observations. A&A, 437, 135 (July 2005). arXiv:astro-ph/0502239.
[135] HESS Collaboration (99 authors). Observations of Mkn 421 in 2004 with HESS at large zenith
angles. A&A, 437, 95 (July 2005). arXiv:astro-ph/0506319.
[136] HESS Collaboration (100 authors). Discovery of VHE gamma rays from PKS 2005-489. A&A,
436, L17 (June 2005). arXiv:astro-ph/0504520.
[137] HESS Collaboration (100 authors). Discovery of extended VHE gamma-ray emission from the
asymmetric pulsar wind nebula in MSH 15-52 with HESS. A&A, 435, L17 (May 2005). arXiv:
astro-ph/0504120.
[138] D. Horns. Erratum to: TeV γ-radiation from Dark Matter annihilation in the Galactic center [Phys.
Lett. B 607 (2005) 225]. Physics Letters B, 611, 297 (April 2005).
[139] HESS Collaboration (100 authors). A New Population of Very High Energy Gamma-Ray Sources
in the Milky Way. Science, 307, 1938 (March 2005). arXiv:astro-ph/0504380.
[140] HESS Collaboration (99 authors). Very high energy gamma rays from the composite SNR G
0.9+0.1. A&A, 432, L25 (March 2005). arXiv:astro-ph/0501265.
[141] HESS Collaboration (100 authors). Search for TeV emission from the region around PSR B1706-44
with the HESS experiment. A&A, 432, L9 (March 2005). arXiv:astro-ph/0501512.
[142] D. Horns. TeV γ-radiation from Dark Matter annihilation in the Galactic center. Physics Letters B,
607, 225 (February 2005). arXiv:astro-ph/0408192.
viii

REFEREED PUBLICATIONS Dieter Horns
[143] HEGRA Collaboration (53 authors). The unidentified TeV source (TeV J2032+4130) and surrounding
field: Final HEGRA IACT-System results. A&A, 431, 197 (February 2005).
[144] HESS Collaboration (99 authors). H.E.S.S. observations of PKS 2155-304. A&A, 430, 865
(February 2005). arXiv:astro-ph/0411582.
[145] HESS Collaboration (100 authors). High-energy particle acceleration in the shell of a supernova
remnant. Nature, 432, 75 (November 2004). arXiv:astro-ph/0411533.
[146] HESS Collaboration (99 authors). Calibration of cameras of the H.E.S.S. detector. Astroparticle
Physics, 22, 109 (November 2004). arXiv:astro-ph/0408145.
[147] HEGRA Collaboration (53 authors). The Crab Nebula and Pulsar between 500 GeV and 80 TeV:
Observations with the HEGRA Stereoscopic Air Cerenkov Telescopes. ApJ, 614, 897 (October 2004).
arXiv:astro-ph/0407118.
[148] HESS Collaboration (100 authors). Very high energy gamma rays from the direction of Sagittarius
A ∗ . A&A, 425, L13 (October 2004). arXiv:astro-ph/0406658.
[149] HEGRA Collaboration (53 authors). Observations of 54 Active Galactic Nuclei with the HEGRA
system of Cherenkov telescopes. A&A, 421, 529 (July 2004).
[150] D. Horns and G. Rowell. HEGRA discovery of the first unidentified TeV source. New Astr. Rev.,
48, 489 (April 2004).
[151] L. Costamante, F. Aharonian, D. Horns, and G. Ghisellini. Constraining the cosmic background
light with four BL Lac TeV spectra. New Astr. Rev., 48, 469 (April 2004). arXiv:astro-ph/
0308025.
[152] G. Fossati, J. Buckley, R. A. Edelson, D. Horns, and M. Jordan. Correlated X-ray and TeV
variability in Markarian 421. New Astr. Rev., 48, 419 (April 2004).
[153] D. Horns, F. A. Aharonian, and L. Costamante. TeV observations of H1426+428 with HEGRA.
New Astr. Rev., 48, 387 (April 2004).
[154] HEGRA Collaboration (53 authors). Observation of the Monoceros Loop SNR region with the
HEGRA system of IACTs. A&A, 417, 973 (April 2004).
[155] H. Krawczynski, S. B. Hughes, D. Horan, F. Aharonian, M. F. Aller, H. Aller, P. Boltwood,
J. Buckley, P. Coppi, G. Fossati, N. Götting, J. Holder, D. Horns, O. M. Kurtanidze, A. P.
Marscher, M. Nikolashvili, R. A. Remillard, A. Sadun, and M. Schröder. Multiwavelength
Observations of Strong Flares from the TeV Blazar 1ES 1959+650. ApJ, 601, 151 (January 2004).
arXiv:astro-ph/0310158.
[156] G. Pühlhofer, O. Bolz, N. Götting, A. Heusler, D. Horns, A. Kohnle, H. Lampeitl, M. Panter,
M. Tluczykont, and HEGRA coll. (43 authors). The technical performance of the HEGRA system
of imaging air Cherenkov telescopes. Astroparticle Physics, 20, 267 (December 2003). arXiv:
astro-ph/0306123.
[157] R. Cornils, S. Gillessen, I. Jung, W. Hofmann, M. Beilicke, K. Bernlöhr, O. Carrol, S. Elfahem,
G. Heinzelmann, G. Hermann, D. Horns, R. Kankanyan, A. Katona, H. Krawczynski, M. Panter,
S. Rayner, G. Rowell, M. Tluczykont, and R. van Staa. The optical system of the H.E.S.S. imaging
atmospheric Cherenkov telescopes. Part II: mirror alignment and point spread function. Astroparticle
Physics, 20, 129 (November 2003). arXiv:astro-ph/0308247.
[158] K. Bernlöhr, O. Carrol, R. Cornils, S. Elfahem, P. Espigat, S. Gillessen, G. Heinzelmann, G. Hermann,
W. Hofmann, D. Horns, I. Jung, R. Kankanyan, A. Katona, B. Khelifi, H. Krawczynski,
M. Panter, M. Punch, S. Rayner, G. Rowell, M. Tluczykont, and R. van Staa. The optical system
of the H.E.S.S. imaging atmospheric Cherenkov telescopes. Part I: layout and components of the
system. Astroparticle Physics, 20, 111 (November 2003). arXiv:astro-ph/0308246.
[159] HEGRA Collaboration (60 authors). TeV gamma-ray light curve and energy spectrum of Mkn 421
during its 2001 flare as measured with HEGRA CT1. A&A, 410, 813 (November 2003).
ix

Dieter Horns REFEREED PUBLICATIONS
[160] L. Costamante, F. Aharonian, G. Ghisellini, and D. Horns. The SED of the TeV BLLac 1ES
1426+428 after correction for the TeV-IR absorption. New Astron. Rev., 47, 677 (October 2003).
arXiv:astro-ph/0301211.
[161] HEGRA Collaboration (54 authors). Detection of TeV gamma-rays from the BL Lac 1ES
1959+650 in its low states and during a major outburst in 2002. A&A, 406, L9 (July 2003).
[162] HEGRA Collaboration (53 authors). Is the giant radio galaxy M 87 a TeV gamma-ray emitter?
A&A, 403, L1 (May 2003). arXiv:astro-ph/0302155.
[163] HEGRA Collaboration (56 authors). Observations of H1426+428 with HEGRA. Observations in
2002 and reanalysis of 1999& 2000 data. A&A, 403, 523 (May 2003). arXiv:astro-ph/0301437.
[164] HEGRA Collaboration (56 authors). Search for TeV gamma ray emission from the Andromeda
galaxy. A&A, 400, 153 (March 2003). arXiv:astro-ph/0302347.
[165] HEGRA Collaboration (56 authors). A search for TeV gamma-ray emission from SNRs, pulsars
and unidentified GeV sources in the Galactic plane in the longitude range between -2 deg and 85
deg. A&A, 395, 803 (December 2002). arXiv:astro-ph/0209360.
[166] HEGRA Collaboration (59 authors), Y. Uchiyama, and T. Takahashi. An unidentified TeV source
in the vicinity of Cygnus OB2. A&A, 393, L37 (October 2002). arXiv:astro-ph/0207528.
[167] HEGRA Collaboration (57 authors) and R.A. Remillard. Variations of the TeV energy spectrum
at different flux levels of Mkn 421 observed with the HEGRA system of Cherenkov telescopes. A&A,
393, 89 (October 2002). arXiv:astro-ph/0205499.
[168] HEGRA Collaboration (60 authors). Limits on the TeV flux of diffuse gamma rays as measured
with the HEGRA air shower array. Astroparticle Physics, 17, 459 (July 2002). arXiv:astro-ph/
0109145.
[169] HEGRA Collaboration (60 authors). Search for point sources of gamma radiation above 15 TeV
with the HEGRA AIROBICC array. A&A, 390, 39 (July 2002).
[170] HEGRA Collaboration (61 authors). TeV gamma rays from the blazar H 1426+428 and the diffuse
extragalactic background radiation. A&A, 384, L23 (March 2002).
[171] H. Krawczynski, R. Sambruna, A. Kohnle, P. S. Coppi, and HEGRA Collaboration (53 authors).
Simultaneous X-Ray and TeV Gamma-Ray Observation of the TeV Blazar Markarian 421 during
2000 February and May. ApJ, 559, 187 (September 2001). arXiv:astro-ph/0105331.
[172] HEGRA Collaboration (56 authors). A search for gamma-ray emission from the Galactic plane in
the longitude range between 37 o and 43 o . A&A, 375, 1008 (September 2001).
[173] HEGRA Collaboration (56 authors). A study of Tycho’s SNR at TeV energies with the HEGRA
CT-System. A&A, 373, 292 (July 2001). arXiv:astro-ph/0107044.
[174] HEGRA Collaboration (59 authors). Evidence for TeV gamma ray emission from Cassiopeia A.
A&A, 370, 112 (April 2001). arXiv:astro-ph/0102391.
[175] HEGRA Collaboration (56 authors). Search for a TeV gamma-ray halo of Mkn 501. A&A, 366,
746 (February 2001).
[176] HEGRA Collaboration (56 authors). The TEV Energy Spectrum of Markarian 501 Measured with
the Stereoscopic Telescope System of HEGRA during 1998 and 1999. ApJ, 546, 898 (January
2001).
[177] HEGRA Collaboration (55 authors). Reanalysis of the high energy cutoff of the 1997 Mkn 501
TeV energy spectrum. A&A, 366, 62 (January 2001).
[178] HEGRA Collaboration (56 authors). Rejection of the Hypothesis That Markarian 501 TEV Photons
Are Pure Bose-Einstein Condensates. ApJ, 543, L39 (November 2000).
[179] HEGRA Collaboration (56 authors). Optimizing the angular resolution of the HEGRA telescope
system to study the emission region of VHE gamma rays in the Crab Nebula. A&A, 361, 1073
(September 2000).
x

REFEREED PUBLICATIONS Dieter Horns
[180] HEGRA Collaboration (57 authors). The Energy Spectrum of TEV Gamma Rays from the Crab
Nebula as Measured by the HEGRA System of Imaging Air Cerenkov Telescopes. ApJ, 539, 317
(August 2000). arXiv:astro-ph/0003182.
[181] R. M. Sambruna, HEGRA Collaboration (56 authors), L. Chou, P. S. Coppi, R. Rothschild, and
C. M. Urry. Correlated Intense X-Ray and TEV Activity of Markarian 501 in 1998 June. ApJ,
538, 127 (July 2000). arXiv:astro-ph/0002215.
[182] W. Hofmann, G. Hermann, A. Konopelko, H. Krawczynski, C. Köhler, G. Pühlhofer, and
HEGRA Collaboration (55 authors). On the optimum spacing of stereoscopic imaging atmospheric
Cherenkov telescopes. Astroparticle Physics, 13, 253 (July 2000).
[183] HEGRA Collaboration (42 authors). Energy spectrum and chemical composition of cosmic rays
between 0.3 and 10 PeV determined from the cherenkov-light and charged-particle distributions in
air showers. A&A, 359, 682 (July 2000). arXiv:astro-ph/9908202.
[184] HEGRA Collaboration (60 authors). HEGRA search for TeV emission from BL Lacertae objects.
A&A, 353, 847 (January 2000). arXiv:astro-ph/9903455.
[185] D. Kranich, R. Mirzoyan, D. Petry, B. C. Raubenheimer, and HEGRA Collaboration (57 authors).
TeV gamma-ray observations of the Crab and MKN 501 during moonshine and twilight.
Astroparticle Physics, 12, 65 (October 1999). arXiv:astro-ph/9901330.
[186] HEGRA Collaboration (61 authors). Observations of MKN 421 during 1997 and 1998 in the
energy range above 500 GeV with the HEGRA stereoscopic Cherenkov telescope system. A&A, 350,
757 (October 1999). arXiv:astro-ph/9905032.
[187] HEGRA Collaboration (48 authors). The temporal characteristics of the TeV gamma -emission from
MKN 501 in 1997. II. Results from HEGRA CT1 and CT2. A&A, 349, 29 (September 1999).
arXiv:astro-ph/9901284.
[188] HEGRA Collaboration (58 authors). The time averaged TeV energy spectrum of MKN 501 of
the extraordinary 1997 outburst as measured with the stereoscopic Cherenkov telescope system of
HEGRA. A&A, 349, 11 (September 1999). arXiv:astro-ph/9903386.
[189] HEGRA Collaboration (58 authors). The time structure of Cherenkov images generated by TeV
gamma-rays and by cosmic rays. Astroparticle Physics, 11, 363 (July 1999). arXiv:astro-ph/
9812341.
[190] HEGRA Collaboration (57 authors). Phase-resolved TeV gamma-ray characteristics of the Crab and
Geminga pulsars. A&A, 346, 913 (June 1999).
[191] HEGRA Collaboration (63 authors). Cosmic ray proton spectrum determined with the imaging
atmospheric Cherenkov technique. Phys. Rev. D, 59, 092003 (May 1999). arXiv:astro-ph/
9901160.
[192] A. Konopelko, M. Hemberger, and HEGRA Collaboration (60 authors). Performance of the
stereoscopic system of the HEGRA imaging air Čerenkov telescopes: Monte Carlo simulations and
observations. Astroparticle Physics, 10, 275 (May 1999). arXiv:astro-ph/9901199.
[193] HEGRA Collaboration (54 authors). The temporal characteristics of the TeV gamma-radiation from
MKN 501 in 1997. I. Data from the stereoscopic imaging atmospheric Cherenkov telescope system
of HEGRA. A&A, 342, 69 (February 1999). arXiv:astro-ph/9808296.
[194] HEGRA Collaboration (57 authors). Measurement of the radial distribution of Cherenkov light
generated by TeV gamma-ray air showers. Astroparticle Physics, 10, 21 (January 1999). arXiv:
astro-ph/9807119.
[195] L. Padilla, B. Funk, H. Krawczynski, J. L. Contreras, A. Moralejo, and HEGRA Collaboration
(31 authors). Search for gamma-ray bursts above 20 TeV with the HEGRA AIROBICC Cherenkov
array. A&A, 337, 43 (September 1998).
[196] A. Daum, G. Hermann, M. Hess, W. Hofmann, H. Lampeitl, G. Pühlhofer, and HEGRA Collaboration
(56 authors). First results on the performance of the HEGRA IACT array. Astroparticle
Physics, 8, 1 (December 1997).
xi

Dieter Horns SELECTED PROCEEDINGS
[197] HEGRA Collaboration (64 authors). Measurement of the flux, spectrum, and variability of TeV
γ-rays from MKN 501 during a state of high activity. A&A, 327, L5 (November 1997).
[198] S. M. Bradbury, T. Deckers, D. Petry, A. Konopelko, and HEGRA Collaboration (57 authors).
Detection of γ-rays above 1.5TeV from MKN 501. A&A, 320, L5 (April 1997). arXiv:astro-ph/
9612058.
Selected Proceedings
[199] M. Meyer and D. Horns. Indications for a transparent universe at very high energies. Journal of
Physics Conference Series, 355, 012028 (March 2012).
[200] N. Nguyen, D. Horns, and T. Bringmann. AstroFit: An Interface Program for Exploring Complementarity
in Dark Matter Research. ArXiv e-prints (February 2012). 1202.1385.
[201] H.-S. Zechlin, M. V. Fernandes, D. Elsaesser, and D. Horns. Dark matter subhalos as Fermi
gamma-ray sources and first candidates in the 1FGL catalog. ArXiv e-prints (October 2011).
1110.6868.
[202] R. Zanin, D. Mazin, E. Carmona, P. Colin, J. Cortina, T. Jogler, S. Klepser, A. Moralejo, Julian
Sitarek for the MAGIC collaboration, D. Horns, and M. Meyer. MAGIC measurement of the Crab
Nebula spectrum over three decades in energy. ArXiv e-prints (October 2011). 1110.2987.
[203] D. Hampf, M. Tluczykont, and D. Horns. Simulation of the expected performance for the proposed
gamma-ray detector HiSCORE. ArXiv e-prints (April 2011). 1104.2336.
[204] D. Horns and the H. E. S. S. Collaboration. H.E.S.S. and the origin of cosmic rays. Nuclear
Physics B Proceedings Supplements, 212, 157 (March 2011).
[205] S. Ohm, D. Horns, O. Reimer, J. Hinton, G. Rowell, E. O. Wilhelmi, M. V. Fernandes, F. Acero,
and A. Marcowith. H.E.S.S. Observations of Massive Stellar Clusters. In J. Martí, P. L. Luque-
Escamilla, & J. A. Combi, editor, High Energy Phenomena in Massive Stars, volume 422 of
Astronomical Society of the Pacific Conference Series, 265 (May 2010). 0906.2637.
[206] S. Ohm, M. V. Fernandes, E. de Ona Wilhelmi, M. de Naurois, D. Horns, O. Reimer, G. P.
Rowell, A. Marcowith, and H.E.S.S. Collaboration. H.E.S.S. observations of the massive stellar
cluster Westerlund 1. In 25th Texas Symposium on Relativistic Astrophysics (2010).
[207] D. Hampf, M. Tluczykont, and D. Horns. Simulation of the expected performance for the proposed
gamma-ray detector HiSCORE. In 25th Texas Symposium on Relativistic Astrophysics (2010).
[208] A. Maurer, M. Raue, T. Kneiske, D. Elsaesser, P. Hauschildt, and D. Horns. Constraints on
dark matter powered stars from the extragalactic background light. In 25th Texas Symposium on
Relativistic Astrophysics (2010).
[209] G. Rowell, D. Horns, Y. Uchiyama, S. Funk, S. Wagner, B. Nicholas, and H.E.S.S. Collaboration.
Chandra X-ray observations of the HII region G5.89-0.39 and TeV Source HESSJ1800-240B. In
25th Texas Symposium on Relativistic Astrophysics (2010).
[210] A. Maurer, M. Raue, T. Kneiske, D. Elsaesser, P. Hauschildt, and D. Horns. Watching dark
matter stars burn - possible signatures of Dark Stars in the EBL. In ”Proceedings of Identification
of Dark Matter 2010 (IDM 2010). July 26 - 30 2010. (2010).
[211] A. Maurer, M. Raue, T. Kneiske, D. Elsaesser, P. Hauschildt, and D. Horns. Constraints on dark
matter powered stars from the extragalactic background light. In M. Raue, T. Kneiske, D. Horns,
D. Elsaesser, & P. Hauschildt , editor, Cosmic Radiation Fields: Sources in the early Universe
(CRF 2010), 19 (2010).
[212] M. Meyer and D. Horns. On the transparency of the universe. In M. Raue, T. Kneiske, D. Horns,
D. Elsaesser, & P. Hauschildt , editor, Cosmic Radiation Fields: Sources in the early Universe
(CRF 2010), 11 (2010).
xii

SELECTED PROCEEDINGS Dieter Horns
[213] T. Kneiske and D. Horns. Cosmic-rays in the local Supercluster. In 38th COSPAR Scientific
Assembly, volume 38, 2720 (2010).
[214] D. Hampf, M. Tluczykont, D. Horns, and G. Rowell. Simulation of expected performance and
site evaluation for the proposed gamma-ray detector SCORE. In 38th COSPAR Scientific Assembly,
volume 38, 2338 (2010).
[215] M. Tluczykont, D. Hampf, D. Horns, T. Kneiske, and G. Rowell. The new large-area wide-angle
ground-based cosmic-ray and gamma-ray detector SCORE. In 38th COSPAR Scientific Assembly,
volume 38, 2334 (2010).
[216] M. Meyer, D. Horns, and H. S. Zechlin. Cross Calibration of Imaging Air Cherenkov Telescopes
with Fermi. ArXiv e-prints (December 2009). 0912.3754.
[217] D. Hampf, M. Tluczykont, and D. Horns. Event reconstruction with the proposed large area
Cherenkov air shower detector SCORE. ArXiv e-prints (September 2009). 0909.0663.
[218] M. Tluczykont, T. Kneiske, D. Hampf, and D. Horns. Gamma-ray and Cosmic Ray Astrophysics
from 10 TeV to 1 EeV with the large-area air-shower Detector SCORE. ArXiv e-prints (September
2009). 0909.0445.
[219] F. Acero, G. Pühlhofer, D. Klochkov, N. Komin, Y. Gallant, D. Horns, A. Santangelo, and for
the H. E. S. S. Collaboration. X- and gamma-ray studies of HESS J1731-347 coincident with a
newly discovered SNR. ArXiv e-prints (July 2009). 0907.0642.
[220] P.-H. Tam, P. Chadwick, Y. Gallant, D. Horns, G. Pühlhofer, G. Rowell, S. Wagner, and for the
H. E. S. S. collaboration. Gamma-ray burst observations with H.E.S.S. ArXiv e-prints (February
2009). 0902.1561.
[221] F. Yuan, E. S. Rykoff, B. E. Schaefer, W. Rujopakarn, T. Güver, F. Aharonian, C. W. Akerlof,
M. C. B. Ashley, S. D. Barthelmy, N. Gehrels, Göˇga, E. üş, D. Horns, Ü. Kiziloˇglu, H. A. Krimm,
T. A. McKay, M. Özel, A. Phillips, R. M. Quimby, G. Rowell, H. F. Swan, W. T. Vestrand, J. C.
Wheeler, and J. Wren. Prompt optical observations of GRB 080330 and GRB 080413A. In Y.-
F. Huang, Z.-G. Dai, & B. Zhang, editor, American Institute of Physics Conference Series, volume
1065 of American Institute of Physics Conference Series, 103–106 (October 2008).
[222] M. Beilicke, F. Aharonian, W. Benbow, G. Heinzelmann, D. Horns, O. Martineau-Huynh,
M. Raue, J. Ripken, G. Rowell, and H. Sol. Discovery of fast variability of the TeV γ-ray flux from
the giant radio galaxy M87 with H.E.S.S. In S. Ritz, P. Michelson, & C. A. Meegan, editor, The
First GLAST Symposium, volume 921 of American Institute of Physics Conference Series, 147–149
(July 2007).
[223] D. Horns. Ground-based gamma-ray observations with H.E.S.S.: status and future. In Society
of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, volume 6267 of Society of
Photo-Optical Instrumentation Engineers (SPIE) Conference Series (July 2006).
[224] S. A. Yost, E. S. Rykoff, F. Aharonian, C. W. Akerlof, M. C. B. Ashley, S. Barthelmy, N. Gehrels,
E. Göğüş, T. Güver, D. Horns, Ü. Kızıloˇglu, H. A. Krimm, T. A. McKay, N. Mirabal, M. Özel,
A. Phillips, R. M. Quimby, G. Rowell, W. Rujopakarn, B. E. Schaefer, D. A. Smith, H. F. Swan,
W. T. Vestrand, J. C. Wheeler, J. Wren, and F. Yuan. ROTSE-III Performance in the Swift Era.
In S. S. Holt, N. Gehrels, & J. A. Nousek, editor, Gamma-Ray Bursts in the Swift Era, volume
836 of American Institute of Physics Conference Series, 349–352 (May 2006).
[225] S. Pita, W. Benbow, L. Costamante, A. Djannati-Ataï, D. Horns, M. Ouchrif, M. Tluczykont,
and the HESS Collaboration. Discovery of Very High Energy gamma - ray emission from the
extreme BL Lac object H2356-309 with H.E.S.S. ArXiv Astrophysics e-prints (February 2006).
arXiv:astro-ph/0602435.
[226] D. Horns. Search for Dark Matter with HESS. In 36th COSPAR Scientific Assembly, volume 36,
626 (2006).
[227] D. Horns, M. Beilicke, W. Benbow, A. Lemière, M. de Naurois, L. Rolland, and H.E.S.S. Collaboration.
Large zenith angle observations of flares from Mkn 421 in 2004 with H.E.S.S. In
xiii

Dieter Horns SELECTED PROCEEDINGS
F. A. Aharonian, H. J. Völk, & D. Horns, editor, High Energy Gamma-Ray Astronomy, volume
745 of American Institute of Physics Conference Series, 468–474 (February 2005).
[228] L. Costamante, W. Benbow, D. Horns, A. Reimer, and H.E.S.S. Collaboration. On the intrinsic
spectrum of PKS 2155-304 from H.E.S.S. 2003 data. In F. A. Aharonian, H. J. Völk, &
D. Horns, editor, High Energy Gamma-Ray Astronomy, volume 745 of American Institute of
Physics Conference Series, 449–454 (February 2005).
[229] D. Horns. Interpretation of the Gamma-ray signal from the Galactic center. In F. A. Aharonian,
H. J. Völk, & D. Horns, editor, High Energy Gamma-Ray Astronomy, volume 745 of American
Institute of Physics Conference Series, 416–421 (February 2005).
[230] M. Beilicke, R. Cornils, G. Heinzelmann, M. Raue, J. Ripken, W. Benbow, D. Horns,
M. Tluczykont, and H.E.S.S.. Collaboration. Observation of the Giant Radio Galaxy M87 at
TeV Energies with H.E.S.S. In P. Chen, E. Bloom, G. Madejski, & V. Patrosian, editor, 22nd
Texas Symposium on Relativistic Astrophysics, 650–653 (2005). arXiv:astro-ph/0504395.
[231] D. Horns, A. Santangelo, and F. A. Aharonian. Performance of a prototype system of Cherenkov
telescopes at high altitude. In International Cosmic Ray Conference, volume 5 of International Cosmic
Ray Conference, 187 (2005).
[232] D. Mazin, F. Goebel, D. Horns, G. Rowell, R. M. Wagner, and S. Wagner. Concept of a
Global Network of Cherenkov Telescopes and first joint observations with H.E.S.S. and MAGIC.
In International Cosmic Ray Conference, volume 4 of International Cosmic Ray Conference, 331
(2005).
[233] D. Horns. Large zenith angle observations of Mkn 421 with H.E.S.S. In International Cosmic Ray
Conference, volume 4 of International Cosmic Ray Conference, 319 (2005).
[234] M. Beilicke, W. Benbow, R. Cornils, G. Heinzelmann, D. Horns, M. Raue, J. Ripken, G. Rowell,
and M. Tluczykont. Observation of the giant radio galaxy M87 at TeV energies with the H.E.S.S.
Cherenkov telescopes. In International Cosmic Ray Conference, volume 4 of International Cosmic
Ray Conference, 299 (2005).
[235] S. Pita, S. Benbow, W., L. Costamante, A. Djannati-Ataï, D. Horns, M. Ouchrif, and
M. Tluczykont. Discovery of Very High Energy gamma - ray emission from the extreme BL Lac object
H2356-309 with H.E.S.S. In International Cosmic Ray Conference, volume 4 of International
Cosmic Ray Conference, 287 (2005).
[236] G. Fontaine, F. Aharonian, W. Benbow, C. Boisson, L. Costamante, G. Dubus, B. Giebels,
D. Horns, N. Leroy, G. Puehhofer, A. Reimer, H. Sol, and S. Wagner. Observations of PKS
2155-304 in gamma-rays with H.E.S.S., and interpretation with simultaneous multiwavelength
data. In International Cosmic Ray Conference, volume 4 of International Cosmic Ray Conference,
279 (2005).
[237] J. Ripken, D. Horns, L. Rolland, and J. Hinton. Dark matter annihilation as possible origin of the
very high energy gamma-radiation from the Galactic center measured by H.E.S.S. In International
Cosmic Ray Conference, volume 4 of International Cosmic Ray Conference, 151 (2005).
[238] D. Horns and F. A. Aharonian. The Crab Nebula: Linking MeV Synchrotron and 50 TeV Inverse
Compton Photons. In V. Schoenfelder, G. Lichti, & C. Winkler, editor, 5th INTEGRAL Workshop
on the INTEGRAL Universe, volume 552 of ESA Special Publication, 439 (October 2004).
arXiv:astro-ph/0407119.
[239] D. Horns, F. A. Aharonian, L. Constamante, and HEGRA Collaboration. High Energy Emission
from H1426+428 and Absorption on the Extragalactic Background Light. In International Cosmic
Ray Conference, volume 5 of International Cosmic Ray Conference, 2651 (July 2003).
[240] D. Horns and HEGRA Collaboration. Studies of the Crab Nebula Based upon 400 Hours of Observations
with the HEGRA System of Cherenkov Telescopes. In International Cosmic Ray Conference,
volume 4 of International Cosmic Ray Conference, 2373 (July 2003).
xiv

BOOKS Dieter Horns
[241] G. P. Rowell, D. Horns, and HEGRA Collaboration. The New Unidentified TeV Source in Cygnus
(TeV J2032+4130): HEGRA IACT-System Results. In International Cosmic Ray Conference,
volume 4 of International Cosmic Ray Conference, 2345 (July 2003).
[242] W. Hofmann, D. Horns, H. Lampeitl, and HEGRA Collaboration. Search for TeV Gamma-Rays
from the Andromeda Galaxy and for Supersymmetric Dark Matter in the Core of M31. In International
Cosmic Ray Conference, volume 3 of International Cosmic Ray Conference, 1685 (July 2003).
[243] HEGRA Collaboration, i. p. N. Goetting, G. Heinzelmann, W. Hofmann, D. Horns, D. Kranich,
G. Puehlhofer, G. Rowell, M. Tluczykont, N. Tonello, and V. Vitale. HEGRA Contributions
to the 28th International Cosmic Ray Conference. ArXiv Astrophysics e-prints (July 2003).
arXiv:astro-ph/0307334.
[244] D. Horns. Multi-wavelength Observations of the TeV Blazars Mkn 421, 1ES1959+650, and
H1426+428 with the HEGRA Cherenkov Telescopes and the RXTE X-ray Satellite. In L. O. Takalo
& E. Valtaoja, editor, High Energy Blazar Astronomy, volume 299 of Astronomical Society of the
Pacific Conference Series, 13 (July 2003). arXiv:astro-ph/0209454.
[245] D. Horns. Observations with the HEGRA stereoscopic system. In M. Boër & J. Trân Thanh Vân,
editor, Very High Energy Phenomena in the Universe, 67 (2003).
[246] D. Horns and HEGRA Collaboration. Search for Bose-Einstein condensates in TeV photon events
from Mrk-501 with the HEGRA air Cherenkov telescopes. In F. A. Aharonian & H. J. Völk, editor,
American Institute of Physics Conference Series, volume 558 of American Institute of Physics
Conference Series, 870–873 (April 2001).
[247] D. Horns and for the HEGRA collaboration. Observations with the HEGRA stereoscopic system.
ArXiv Astrophysics e-prints (March 2001). arXiv:astro-ph/0103514.
[248] D. Horns, A. Kohnle, F. A. Aharonian, HEGRA Collaboration, and R. A. Remillard. Multiwavelength
observations of Mkn 421 in a flaring state in 2001 with HEGRA and RXTE. In International
Cosmic Ray Conference, volume 1 of International Cosmic Ray Conference, 106 (2001).
[249] D. Horns, A. Röhring, and HEGRA Collaboration. Measurement of the energy spectrum of light
cosmic rays with the HEGRA air shower arrays. In International Cosmic Ray Conference, volume 1
of International Cosmic Ray Conference, 101 (2001).
[250] D. Horns and D. Schmele. Anisotropies of Cosmic Rays and Search for Intergalactic Cascades from
the direction of the Highest Energetic Cosmic Ray Events with the HEGRA Scintillator Array. ArXiv
Astrophysics e-prints (September 1999). arXiv:astro-ph/9909125.
[251] D. Horns. Simulation of Electromagnetic Cascades in Intergalactic Radiation Fileda in connection
with the Highest Energy Cosmic ray Event. In International Cosmic Ray Conference, volume 4 of
International Cosmic Ray Conference, 302 (1999).
[252] HEGRA Collaboration (56 authors). Cherenkov light based measurement of extensive air showers
around the knee with the HEGRA experiment. Nuclear Physics B Proceedings Supplements, 75,
244 (March 1999).
[253] J. Cortina, D. Horns, H. Kornmayer, A. Lindner, A. Moralejo, R. Plaga, A. Röhring, and HEGRA
Collaboration. Cerenkov light based Measurement of the Chemical Composition and Energy Spectrum
of Cosmic Rays with the HEGRA Detector. In International Cosmic Ray Conference, volume 4 of
International Cosmic Ray Conference, 69 (1997).
Books
[254] M. Raue, T. Kneiske, D. Horns, D. Elsaesser, and P. Hauschildt, editors. Cosmic Radiation
Fields: Sources in the early Universe (2010).
[255] F. A. Aharonian, H. J. Völk, and D. Horns, editors. High Energy Gamma-Ray Astronomy, volume
745 of American Institute of Physics Conference Series (February 2005).
xv

Dieter Horns SELECTED PRESENTATIONS SINCE 2004
Circulars
[256] A. Tennant, R. Blandford, R. Buehler, P. Caraveo, E. Costa, A. de Luca, C. Ferrigno, S. Funk,
D. Horns, A. Lobanov, R. Mignani, M. Tavani, Y. Uchiyama, and M. C. Weisskopf. Chandra
observations of the Crab Nebula following the new gamma-ray flare observed by the Fermi-LAT. The
Astronomer’s Telegram, 3283, 1 (April 2011).
[257] D. Horns, A. Tennant, C. Ferrigno, M. C. Weisskopf, A. Neronov, M. Tavani, E. Costa, and
P. Caraveo. Chandra follow-up observation of the Crab nebula after the high energy flare. The
Astronomer’s Telegram, 3058, 1 (November 2010).
[258] C. Ferrigno, A. Tennant, D. Horns, M. C. Weisskopf, A. Neronov, M. Tavani, E. Costa, and
P. Caraveo. Chandra follow-up observation of the Crab nebula after the very high energy flare. The
Astronomer’s Telegram, 2994, 1 (November 2010).
[259] P. Caraveo, A. de Luca, R. Mignani, D. Salvetti, G. F. Bignami, M. Tavani, E. Costa, A. Pellizzoni,
R. Buehler, F. D’Ammando, E. Hays, A. Tennant, M. C. Weisskopf, and D. Horns. HST
observation of the Crab Nebula following the September 2010 gamma-ray flare. The Astronomer’s
Telegram, 2903, 1 (October 2010).
[260] D. Horns and K. Konopelko. HEGRA detects TeV flare from 1ES1959+650. The Astronomer’s
Telegram, 96, 1 (May 2002).
Selected Presentations since 2004
[261] D. Horns. High-energy gamma rays constraints on the extragalactic background light. Invited talk
at the European Institute for Sciences and Their Applications, TR33: Summer Institute -
Particles and the Universe, Corfu (September 2012).
[262] D. Horns. Indirect Dark Matter Searches. Lecture at the Lake Baikal School on Physics of
Elementary Particles and Astrophysics (July 2012).
[263] D. Horns. Gamma-ray observations with air shower detectors. Invited talk at 23rd European
Cosmic-Ray Conference, Moscow State University (July 2012).
[264] D. Horns. Experimental techniques of Air Shower detections. Lecture days of the joint research
school (Univ. HH, APC Paris, Oxford univ.) (May 2012).
[265] D. Horns. Avenues of Research with gamma-rays. Invited talk, Kick-off meeting of the research
school jointly between Univ. Hamburg, APC Paris, Oxford univ. (March 2012).
[266] D. Horns. Fundamental Physics with Cosmic Gamma-rays. Münchner Physik Kolloquium (January
2012).
[267] D. Horns. Universe’s transparency to the gamma-rays. Invited contribution to 12th International
Conference on Topics in Astroparticle and Underground Physics, München (September 2011).
[268] A. Tennant, M.C. Weisskopf, M. Tavani, R. Bühler, R. Blandford, P. Caraveo, E. Costa, D. Horns,
C. Ferrigno, S. Funk, R. Mignani, Lobanov A., A. de Luca, and Y. Uchiyama. High-Resolution
Chandra Observations of the Crab Nebula in Coincidence with the April Gamma-Ray Flares. Presentation
at the American Astronomical Society, High Energy Astrophysical Division meeting,
Rhode Island (September 2011).
[269] D. Horns. News from the accelerator sky. Physics Colloquium of the University of Siegen (May
2011).
[270] D. Horns. Gamma-ray sources above 10 TeV. Invited talk at the workshop on “Cosmic Ray
Physics Large Scale Experiments at the Second Decade of the 21st Century” in Moscow (May
2011).
[271] D. Horns. High energy gamma-ray astronomy. Festkolloquium in honor of the 80th birthday of
Prof. Dr. Dres. h.c. Volker Soergel (March 2011).
xvi

SELECTED PRESENTATIONS SINCE 2004 Dieter Horns
[272] D. Horns. H.E.S.S. and the Cosmic-ray origin. Invited talk at the CRIS2010, Catania, for the
H.E.S.S coll. (September 2010).
[273] D. Horns. Indirect dark matter searches. Invited talk at the 8th Patras Workshop in Zürich (July
2010).
[274] D. Horns. Traces of Dark Matter. Series of Lectures for the SFB 676, Univ. Hamburg (May
2010).
[275] D. Horns. Dark Matter signatures. Physics Kolloquium of the Karlsruhe Institute of Technology
(May 2010).
[276] D. Horns. Finding Dark Matter Particles. Invited talk at the Workshop on “The GeV to TeV
connection” at Ringberg Castle, Tegernsee (January 2010).
[277] D. Horns. Astrophysical Links. Plenary presentation at the Evaluation of the SFB 676 (November
2009).
[278] D. Horns. Astroparticle Physics at the Terascale. Invited talk at the University of Innsbruck
(February 2008).
[279] D. Horns. Indirect Dark Matter Search from above and below the ground. Invited talk at the
EnTAPP visitor programme, DESY (January 2008).
[280] D. Horns. The Very High Energy Gamma-Ray Sky: From Cosmic-Rays to Cosmology. Colloquium
at the Sternwarte Bergedorf (January 2008).
[281] D. Horns. Astrophysics at the Terascale: Status and Highlights of ground-based Gamma-Ray Observations.
Invited talk at the DESY Physics Colloquium (January 2008).
[282] D. Horns. News from the gamma-ray sky. Colloquium of the SFB 676 (Particles, Strings and the
Early Universe), Hamburg (November 2007).
[283] D. Horns. High-(Energy-)Lights: The Gamma-Ray Sky. Invited (plenary) talk at the Herbsttagung
of the Astronomische Gesellschaft, Würzburg (September 2007).
[284] D. Horns. Ground based Cherenkov telescopes, Data reduction and analysis. Invited talk at the
ISDC, Geneva (July 2007).
[285] D. Horns. X-ray emission from Galactic Very High Energy (VHE: E> 100 GeV) gamma-ray
sources. Tübingen Colloquium on Astrophysics (July 2007).
[286] D. Horns. HESS unidentified sources. Invited talk at the workshop on cosmic-ray particle
acceleration, Heidelberg (May 2007).
[287] D. Horns. X-ray emission from Galactic gamma-ray sources. Invited talk at the workshop on the
SIMBOL-X mission, Bologna (May 2007).
[288] D. Horns. Astroparticle physics with Gamma-, X-rays, and Neutrinos. Invited talk at the University
of Hamburg (December 2006).
[289] D. Horns. Study of Galactic Sources with H.E.S.S. Contributed talk to the TeVPA, Madison, on
behalf of the H.E.S.S. coll. (August 2006).
[290] D. Horns. HESS status and future plans. Contributed talk to the TeVPA, Madison, on behalf of
the H.E.S.S. coll. (August 2006).
[291] D. Horns. Nucleonic gamma-ray production in pulsar wind nebulae. Contributed talk at the
MultiMessenger workshop in Barcelona (July 2006).
[292] D. Horns. Indirect search for Dark Matter with H.E.S.S. Contributed talk at the COSPAR
Assembly Beijing, on behalf of the H.E.S.S. coll. (July 2006).
[293] D. Horns. Ground-based gamma-ray astronomy. Invited talk at the University of Tübingen
(November 2004).
[294] D. Horns. HESS: status and selected results. Invited talk at the 8th ISVHECRI, Pylos Greece,
on behalf of the H.E.S.S. coll. (September 2004).
xvii

Dieter Horns OUTREACH
[295] D. Horns. Status and results of the telescopes around ROTSE 3c. Invited talk at the University
of Michigan, Ann Arbor, on behalf of the H.E.S.S. coll. (August 2004).
[296] D. Horns. Interpretation of the gamma-ray signal from the Galactic center. Invited talk at the
Heidelberg Gamma-ray symposium (July 2004).
[297] D. Horns. Detailed study of the Crab nebula and pulsar between 500 GeV and 80 TeV with the
HEGRA stereoscopic system of ground based gamma-ray telescopes. Invited talk at the meeting on
Frontiers in Science, Frascati (June 2004).
[298] D. Horns. A high-altitude system of Cherenkov telescopes in the southern hemisphere. Presentation
at the APPEC (FP 6) meeting, München on behalf of the MPI-K, Heidelberg (June 2004).
[299] D. Horns. The potential for indirect Dark Matter searches with imaging air Cherenkov telescopes.
Invited talk at the University of Montpellier (June 2004).
[300] D. Horns. Status and potentail of ground-based Gamma-ray Astronomy. Invited talk at the GAM,
Montpellier (March 2004).
[301] D Horns and G. Rowell. HEGRA discovery of the first unidentified TeV source. Contributed talk
at the 2nd VERIAS symposium on TeV astrophysics, Chicago, on behalf of the H.E.S.S. coll.
(March 2004).
[302] D. Horns, F. Aharonian, and L. Costamante. Observations of H1426+428 with HEGRA. Contributed
talk at the 2nd VERITAS symposium on TeV astrophysics, Chicago, on behalf of the
H.E.S.S. coll. (March 2004).
[303] D. Horns and F. Aharonian. The Crab nebula: Linking MeV synchrotron and 50 TeV inverse
Compton photons. Contributed talk at the 5th INTEGRAL workshop at the Bavarian academy
of science (February 2004).
Outreach
[304] D. Horns. Vom Khomas-Hochland zum Hochenergie-Kosmos. Öffentlicher Vortrag am Tag der
offenen Tür an der Hamburger Sternwarte (June 2012).
[305] D. Horns. Schülerpraktikum. Praktikumsversuche für Hamburger Schüler (seit 2010).
[306] M. Meyer and D. Horns. Überraschender Befund: Das Weltall ist durchsichtiger als gedacht.
Newsletter der Universität Hamburg, Nr. 36 (March 2012).
[307] R. Blandford, R. Bühler, P. Caraveo, E. Costa, D. Horns, C. Ferrigno, S. Funk, R. Mignani,
A. Lobanov, A. Luca, M. Tavani, and U. Yasunobo. The Crab in action and the case of the dog
that did not bark. Press release at the High Energy Astrophysics Division annual meeting,
Newport Rhode Island (September 2011).
[308] D. Horns. Kosmische Strahlung in der Schule. Lehrerfortbildung zum Einsatz des Quarknet-
Detektors an der Schule, Hamburg (February 2010).
[309] D. Horns. Schwarze Löcher, die hellsten Quellen des Universums. Öffentlicher Vortrag at the
OpenUni-Tag, Universität Hamburg (June 2009).
[310] D. Horns. Supermassive Schwarze Löcher. Interview for the TV magazine “3 vor 9” with
Alexander Kluge, dctp-productions (July 2008).
[311] D. Horns. Der Himmel über Namibia, Beobachtungen von Gamma-Strahlung mit H.E.S.S. Presentation
at the Oberjoch-meeting for high-school teachers (Lehrerfortbildung) (October 2006).
[312] D. Horns. Der Himmel im Gamma-Strahlen-Licht. Öffentlicher Vortrag zum Tag der offenen Tür,
Institut für Astronomie und Astrophysik, Tübingen (October 2006).
[313] D. Horns. Rätselhafte kosmische Explosionen. Öffentlicher Vortrag zum 3. Astronomietag, Tübingen
(September 2005).
xviii

THESES Dieter Horns
Theses
[314] Daniel Hampf. Study for the wide-angle air Cherenkov detector HiSCORE and time gradient event
reconstruction for the H.E.S.S. experiment. Ph.D. thesis, Universität Hamburg, University of
Adelaide (March 2012).
[315] Alicia Hirt. Suche nach transienten Ereignissen mit Fermi-LAT. Bachelor thesis, Universität
Hamburg (March 2012).
[316] Franziska Laatz. Dark stars: radiation transport and evolution. Diploma thesis, Universität
Hamburg (March 2012).
[317] Bastian Terlind. Untersuchungen zur Auflösungsverbesserung hochenergetischer Myonspuren aus
der Wechselwirkung mit Neutrinos. Diploma thesis, Universität Hamburg und Mainz (September
2011).
[318] Niels Plambeck. Komplementäre Analyse von Suchen nach dunkler Materie und Ergebnissen von
Beschleunigerphysik mit AstroFit. Bachelor thesis, Universität Hamburg (September 2011).
[319] Timm Plath. Analyse der Variabilität der Langzeitlichtkurve von PKS 2005-489. Bachelor thesis,
Universität Hamburg (September 2011).
[320] Johannes Martin. Analyse der Variabilität der Langzeitlichtkurve von Markarian 421. Bachelor
thesis, Universität Hamburg (September 2011).
[321] Rayk Nachtigall. Charakterisierung von Photomultipliern und Beiträge zur Entwicklung eines Prototypen
für Luftcherenkovmessungen. Diploma thesis, Universität Hamburg (July 2011).
[322] Jagdev Bains. Search for evaporating primordial black holes using Fermi gamma-ray telescope data.
Masters thesis, Universität Hamburg & Imperial College, London (June 2011).
[323] Helena Kaufmann. Variability of the Crab nebula. Masters thesis, Universität Hamburg &
Imperial College, London (June 2011).
[324] Moritz Habermehl. Analyse von XMM-Newton-Daten aus der Richtung von Vela-X. Bachelor
thesis, Universität Hamburg (April 2011).
[325] Robert Eichler. Slow control und Datenauslese für den HiSCORE-Detektor. Diploma thesis,
Universität Hamburg (February 2011).
[326] Wiebke Schubotz. The Density of Ultra-High Energy Protons within the Local Supercluster of
Galaxies. Diploma thesis, Universität Hamburg (January 2011).
[327] Jan Drewes. Echtzeitregelung eines optischen Systems für Cherenkov-Teleskope. Bachelor thesis,
Universität Hamburg (September 2010).
[328] Katharina Borm. Untersuchung einer möglichen Dunkle-Materie-Substruktur in der Galaktischen
Halo. Bachelor thesis, Universität Hamburg (August 2010).
[329] Ian Proudlock. Watching the Interstellar Clocks. Masters thesis, Universität Hamburg & Imperial
College London (May 2010).
[330] Andreas Maurer. Der Beitrag von Dark Stars zum Extragalaktischen Hintergrundlicht. Diploma
thesis, Universität Hamburg (May 2010).
[331] Manuel Meyer. Modellierung des Spektrums des Krebsnebels und Suche nach Oszillationseffekten
verborgener Photonen in Röntgendaten. Diploma thesis, Universität Hamburg (May 2010).
[332] Stefanie Januschek. Analyse zur Detektierbarkeit von Substrukturen Dunker Materie-Halos mit dem
Fermi-LAT-Experiment. Diploma thesis, Universität Hamburg (March 2010).
[333] Jan Dreyling-Eschweiler. Aufbau und Test eines neuartigen CCD-Kamerasystems zur Kontrolle der
Optik eines H.E.S.S.-Cherenkovteleskops. Diploma thesis, Universität Hamburg (March 2010).
[334] Sönke Cramme. Untersuchungen an CCDs mit Hinblick auf das ALPS-Experiment. Diploma
thesis, Universität Hamburg (October 2009).
xix

Dieter Horns THESES
[335] Max Kastendieck. Untersuchung der Variabilität der Langzeitlichtkurve von PKS 2155-304.
Diploma thesis, Universität Hamburg (September 2009).
[336] Milton Fernandes. Untersuchung hochenergetischer Gamma-Strahlung von Westerlund 1 und weitere
galaktische Sternhaufen. Diploma thesis, Universität Hamburg (May 2009).
[337] Hannes Zechlin. Einschränkung der Mischungsparameter verborgener Photonen durch Analyse sehr
hochenergetischer Gamma-Spektren des Krebsnebels. Diploma thesis, Universität Hamburg (February
2009).
[338] Attila Abramowski. Zeitabhängige Absorption von sehr hochenergetischen Photonen aus der Richtung
des galaktischen Zentrums. Diploma thesis, Universität Hamburg (December 2008).
xx