Full CV (pdf) - University of Waterloo

DR. TIM JOHANNSEN
CITA NATIONAL POSTDOCTORAL FELLOW
PERIMETER INSTITUTE/UNIVERSITY OF WATERLOO
31 CAROLINE STREET NORTH
WATERLOO, ON N2L 2Y5, CANADA
TJOHANNSEN@PERIMETERINSTITUTE.CA
WWW.SCIENCE.UWATERLOO.CA/~TJOHANNS/
RESEARCH EXPERTISE
Black holes, theoretical high-energy astrophysics, gravitation, general relativity, braneworld gravity,
theories of modified gravity, extra dimensions
EDUCATION
Ph.D. Physics, University of Arizona 08/2012
Thesis title: Testing General Relativity in the Strong-Field Regime with Observations of
Black Holes in the Electromagnetic Spectrum
Advisor: Dimitrios Psaltis
M.S. Physics, University of Arizona 05/2008
M.A. Physics, State University of New York at Stony Brook 08/2005
Thesis title: Numerical Analysis of the Perron-Frobenius Operator for a fixed Hamiltonian
Perturbed by a Gaussian Unitary Random Matrix
Advisor: Jacobus J. M. Verbaarschot
Vordiplom Physics, University of Würzburg, Germany (Vordiplom + 1 yr = B.S.) 10/2003
Vordiplom Mathematics, University of Würzburg, Germany (Vordiplom + 1 yr = B.S.) 10/2003
EMPLOYMENT
CITA National Postdoctoral Fellow
09/2012 – Present
Physics & Astronomy Department, University of Waterloo/Perimeter Institute for Theoretical Physics
Graduate Research/Teaching Associate 08/2006 – 08/2012
Physics & Astronomy Departments,, University of Arizona
SKILLS
• Programming: C, Fortran, Mathematica
• Fluent in speaking, reading and writing German and English, Spanish (intermediate), French
(beginner)
PROFESSIONAL ACTIVITIES
• Peer Reviewer for Ap.J. (since 10/2010), Phys. Rev. D (since 11/2012), Phys. Lett. B (since 08/2011)
and Phys. Rev. Lett. (since 02/2013)
TRAVEL GRANTS
• Early-Career Travel Grant, AAS HEAD 2011 ($375) 08/2011
• Travel Grant, Second Summer School on Multiwavelength Astronomy (€550) 06/2010
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• Early-Career Travel Grant, AAS HEAD 2010 ($375) 03/2010
• Physics Graduate Travel Award, Physics Dept., University of Arizona ($500) 03/2010
AWARDS/HONORS/SCHOLARSHIPS
Ph.D. (Physics) with highest academic honors, University of Arizona 08/2012
College of Science Award for Scholarship, University of Arizona 05/2012
APS Four Corners Section Meeting Best Graduate Student Presentation Award, Tucson, AZ 10/2011
Theoretical Astrophysics Program Best Graduate Student Paper Prize, University of Arizona 06/2011
Professor C. Y. Fan “FanFare” Award, Physics Department, University of Arizona 05/2011
Physics Publication Award, Physics Department, University of Arizona 05/2011
APS Topical Group in Gravitation Best Student Presentation Award (PCGM27) 03/2011
Golden Key International Honour Society (by invitation) 11/2009
Galileo Circle Award, College of Science, University of Arizona 04/2009
M.S. (Physics) with highest academic honors, University of Arizona 05/2008
Graduate College Scholarship for Academic Excellence, University of Arizona 2006 – 08
M.A. (Physics) with highest academic honors, SUNY Stony Brook 05/2005
Graduate School Scholarship (100% tuition coverage), SUNY Stony Brook 2004 – 05
German National Academic Foundation Scholarship 2002 – 07
This national non-profit organization sponsors university students through scholarships,
summer schools, and mentoring with additional emphasis on social responsibility and
intercultural understanding. Participated in a two week-long summer academy on classical
chaos theory in Ftan, Switzerland in 06/2002 and in a three week-long language course in
French in La Rochelle, France in 06/2003.
Global Young Leaders Conference, Washington, D.C. and New York City 07/1999
Invited by the Congressional Youth Leadership Council (CYLC). CYLC offers educational
leadership conferences for an elite group of outstanding young people from around world
designed to inspire them to reach their full leadership potential. Became a representative
for Germany in 09/1999 with the right to nominate prospective participants.
MEMBERSHIPS
• American Astronomical Society since 12/2007
High Energy Astrophysics Division
• American Physical Society since 11/2006
Gravitation, Astrophysics
• German National Academic Foundation (by invitation) since 02/2002
Alumnus since 06/2007
• German Scholar Organization since 06/2012
• Golden Key International Honour Society (by invitation) since 11/2009
TELESCOPE EXPERIENCE
• Bok Telescope (2.3 m), Kitt Peak, Arizona (11 nights, incl. 6 nights as PI)
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SUMMER SCHOOLS
Second Summer School on Multiwavelength Astronomy, Amsterdam, NL 06/2010
A 2 week-long program, with each week focused on radio and X-ray/gamma-ray analysis,
respectively, including a mixture of lectures as well as practical, hands-on data analysis
sessions (AIPS, CASA, ISIS, XSPEC).
TALKS
02/2013 Canadian Institute for Theoretical Astrophysics, Toronto, ON (invited)
“Testing the No-Hair Theorem with Observations of Black Holes in the Electromagnetic Spectrum”
01/2013 AAS Winter Meeting 2013, Long Beach, CA (dissertation talk)
“Testing Strong-Field General Relativity with Observations of Black Holes in the Electromagnetic Spectrum”
10/2012 Strong Gravity Seminar, Perimeter Institute for Theoretical Physics, Waterloo, ON (invited)
“Testing Strong-Field General Relativity with Black Holes”
09/2012 Second LOFT Science Meeting, Toulouse, France
“Testing the No-Hair Theorem with LOFT”
09/2012 Astrophysical Seminar, University of Waterloo, ON (invited)
“Testing the No-Hair Theorem with Observations of Black Holes in the Electromagnetic Spectrum”
03/2012 High-Energy Seminar, Washington University, St. Louis, MO (invited)
“Testing the No-Hair Theorem with Observations of Black Holes in the Electromagnetic Spectrum”
01/2012 Bringing Black Holes into Focus: The Event Horizon Telescope, Tucson, AZ (invited)
“Testing the No-Hair Theorem with VLBI Imaging of Sgr A*”
01/2012 Ohio State University, Columbus, OH (invited)
“Testing the No-Hair Theorem with Observations of Black Holes in the Electromagnetic Spectrum”
10/2011 APS Four Corners Section Meeting 2011, Tucson, AZ
“Testing the No-Hair Theorem with Observations of Black Holes in the Electromagnetic Spectrum”
08/2011 Harvard-Smithsonian Center for Astrophysics, Cambridge, MA
“Testing the No-Hair Theorem with Observations of Black Holes in the Electromagnetic Spectrum”
08/2011 AAS High-Energy Astrophysics Division Meeting 2011, Newport, RI
“Testing the No-Hair Theorem with Quasi-Periodic Variability and Fluorescent Iron Lines”
07/2011 Black Hole Astrophysics, Winchester, UK
“Testing the No-Hair Theorem with Quasi-Periodic Variability”
03/2011 27 th Pacific Coast Gravity Meeting, California Institute of Technology, Pasadena, CA
“Testing the No-Hair Theorem with Observations of Black Holes in the Electromagnetic Spectrum”
12/2010 NOAO Seminar, National Optical Astronomy Observatory, Tucson, AZ
“Testing the No-Hair Theorem with Observations of Black Holes in the Electromagnetic Spectrum”
07/2010 COSPAR 2010, Bremen, Germany
“Testing the No-Hair Theorem with Observations of Black Holes in the Electromagnetic Spectrum”
07/2010 MPE Seminar, Max-Planck-Institut für Extraterrestische Physik, Garching (invited)
“Testing the No-Hair Theorem with Observations in the Electromagnetic Spectrum”
03/2010 AAS High-Energy Astrophysics Division Meeting 2010, Waikoloa Village, HI
“Testing the No-Hair Theorem with Observations of Black Holes in the Electromagnetic Spectrum”
05/2009 Tests of Gravity and Gravitational Physics, Cleveland, OH
“Constraints on the Size of Extra Dimension from Black Holes”
04/2008 AAS High-Energy Astrophysics Division Meeting 2008, Los Angeles, CA (poster)
“Constraints on the Size of Extra Dimension from Black-Hole X-Ray Binaries”
02/2008 Internal Symposium, Steward Observatory (invited)
“Constraints on the Size of Extra Dimension from Black-Hole Binaries”
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12/2007 Physics Colloquium, Physics Department, University of Arizona (student talk)
“Constraints on the Size of Extra Dimension from Black-Hole Binaries”
IN THE NEWS
“Black Hole Silhouettes” by C. Petit Science News 178, 8, 22 (2010)
“12 Events That Will Change Everything” by G. Musser Scientific American, 302, 6, 39 (2010)
“Hunting Hidden Dimensions” by D. Steele Science News 176, 7, 22 (2009)
PUBLICATIONS
18. Johannsen, T. 2013, “Inner Accretion Disk Edges in a Kerr-Like Spacetimes,” PRD in press,
arXiv:1304.8106
17. Johannsen, T. 2013, “Systematic Study of Event Horizons and Pathologies in Parametrically
Deformed Kerr Spacetimes,” PRD in press, arXiv:1304.7786
16. Johannsen, T., & Psaltis, D. 2013, “Testing the No-Hair Theorem with Observations in the
Electromagnetic Spectrum. IV. Relativistically Broadened Iron Lines,” ApJ in press, arXiv:1202.6069
15. Johannsen, T. 2013, “A Metric for Testing the Nature of Black Holes,” J. Phys. Conf. Ser., 410,
012136
14. Johannsen, T. 2012, “Testing General Relativity with Observations of Black Holes in the
Electromagnetic Spectrum,” PASP, 124, 1133
13. Johannsen, T., Psaltis, D., Gillessen, S., Marrone, D. P., Ozel, F., Doeleman, S. S., & Fish, V. L. 2012,
“Masses of Supermassive Black Holes with Very-Long Baseline Interferometry,” ApJ, 758, 30
12. Bauböck, M., Psaltis, D., Ozel, F., & Johannsen, T. 2012, “A Ray-Tracing Algorithm for Spinning
Compact Object Spacetimes with Arbitrary Quadrupole Moments. II. Neutron Stars,” ApJ, 753, 175
11. Johannsen, T. 2012, “Testing the No-Hair Theorem with Sgr A*,” Adv. Astron., 2012, 1
(invited review)
10. Psaltis, D., & Johannsen, T. 2012, “A Ray-Tracing Algorithm for Spinning Compact Object
Spacetimes with Arbitrary Quadrupole Moments. I. Quasi-Kerr Black Holes,” ApJ, 745, 1
9. Johannsen, T., & Psaltis, D. 2011, “Metric for Rapidly Spinning Black Holes Suitable for Astrophysical
Tests of the No-Hair Theorem,” PRD, 83, 124015
8. Psaltis, D., & Johannsen, T. 2011, “Sgr A*: The Optimal Testbed of Strong-Field Gravity,” J. Phys.
Conf. Ser. 283, 012030
7. Johannsen, T., & Psaltis, D. 2011, “Testing the No-Hair Theorem with Observations in the
Electromagnetic Spectrum. III. Quasi-Periodic Variability,” ApJ, 726, 11
6. Johannsen, T., & Psaltis, D. 2011, “Testing the No-Hair Theorem with Observations of Black Holes
in the Electromagnetic Spectrum,” Adv. Space Res., 47, 528
5. Johannsen, T., & Psaltis, D. 2010, “Testing the No-Hair Theorem with Observations in the
Electromagnetic Spectrum. II. Black Hole Images,” ApJ, 718, 446
4. Johannsen, T., & Psaltis, D. 2010, “Testing the No-Hair Theorem with Observations in the
Electromagnetic Spectrum. I. Properties of a Quasi-Kerr Spacetime,” ApJ, 716, 187
3. Psaltis, D., & Johannsen, T. 2010, “Testing the No-Hair Theorem with Observations of Astrophysical
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Black Holes in the Electromagnetic Spectrum”, in The Energetic Cosmos: From Suzaku to Astro-H, ed.
K. Makishima (Tokyo: JAXA Special Publication), 240
2. Johannsen, T. 2009, “Constraints on the Size of Extra Dimensions from the Orbital Evolution of the
Black-Hole X-Ray Binary XTE J1118+480,” A&A, 507, 617
1. Johannsen, T., Psaltis, D., & McClintock, J. E. 2009, “Constraints on the Size of Extra Dimensions
from the Orbital Evolution of the Black-Hole X-Ray Binaries,” ApJ, 691, 997
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