Extragalactic abstracts - IRSA - California Institute of Technology

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Spitzer_Approved_Extragalactic Mar 25, 10 16:24 Page 531/742 Spitzer Space Telescope − Guaranteed Time Observer Proposal #50597 High−Resolution Spectroscopy of a Complete Seyfert Sample Principal Investigator: George Rieke Institution: The University of Arizona Technical Contact: Aleks Diamond−Stanic, University of Arizona Co−Investigators: Yong Shi, University of Arizona Science Category: AGN/quasars/radio galaxies Observing Modes: IrsStare Hours Approved: 7.2 Abstract: We propose new IRS high−resolution spectroscopy that will finish a full suite of data for a complete sample of Seyfert galaxies in the nearby Universe. Our sample, which includes all known B < 13 Seyferts in the Revised Shapley−Ames catalog, reduces biases found in other samples selected at optical/X−ray/IR wavelengths against type 2 and low−luminosity nuclei, and against AGNs in edge−on host galaxies. The existing data set is complete for 3.6−24 micron imaging and 5−40 micron low−resolution spectroscopy, but the sample is currently biased against faint Seyfert 2 nuclei for high−resolution spectroscopy. With these new data, we will investigate how the ratios of fine−structure lines vary as a function of Seyfert type, AGN luminosity, and host galaxy star formation activity, and how ubiquitous high−ionization lines are in low luminosity and obscured sources. Spitzer_Approved_Extragalactic Printed_by_SSC Mar 25, 10 16:24 Page 532/742 Spitzer Space Telescope − General Observer Proposal #50314 The dark side of accretion: SMBH census and AGN feedback at z=1−3 Principal Investigator: Mara Salvato Institution: California Institute of Technology Technical Contact: Mara Salvato, California Institute of Technology Co−Investigators: Fabrizio Fiore, INAF Roma, Italy Marcella Brusa, MPE Garching, Germany Lin Yan, Caltech PAsadena, USA Chiara Feruglio, CEA Saclay, France Simonetta Puccetti, INAF Roma, Italy Alejo Martinez Sansigre, MPIA Heidelberg, Germany Andrea Comastri, INAF Bologna, Italy Emeric Le Floc’h, IfA Hawaii, USA Martin Elvis, CfA Harvard, USA Nick Scoville, Caltech Pasadena, USA Dave Sanders, IfA Hawaii, USA Herve Aussel, CEA Saclay, France Francesca Civano, CfA Harvard, USA Roberto Maiolino, INAF, Roma, Italy Adriano Fontana, INAF Roma, Italy Science Category: AGN/quasars/radio galaxies Observing Modes: IrsStare Hours Approved: 49.8 Abstract: We propose IRS spectroscopy of a sample 23 i) luminous, ii) highly obscured, iii) high redshift (Z ~ 2) QSO in the COSMOS field. They are selected on the basis of very red mid−IR to optical colors and represent the first complete 24 micron flux limited (f(24>0.75mJ) sample at high redshift. Their high MIR luminosity, their hard X−ray stacked signal and the accurate photometric redshifts assure that the proposed targets are among the most luminous and most obscured (most likely Compton Thick) AGN at z~2. The observed radio luminosities suggest that vigourous star formation is on−going in most of the objects. Therefore, our proposed targets represent the best, homogenous and complete sample of sources catched in the golden epoch of their co−eval accretion and star formation phase. The proposed IRS observations represent an unique opportunity to quantify the relative contribution of two phenomena. Thursday March 25, 2010 xgal_covers.txt 266/371
Spitzer_Approved_Extragalactic Mar 25, 10 16:24 Page 533/742 Spitzer Space Telescope − Directors Discretionary Time Proposal #483 The galaxy SDSSJ0952+21 is unique in showing a very intense optical emission−line light echo in response to an EUV−X−ray flare which we detected in the optical, NUV and NIR continuum. The flare was likely caused by the tidal disruption of a star by the supermassive black hole in SDSSJ0952+21. The optical spectrum of the galaxy is characterized by exceptionally strong, fading, high−ionization iron lines and a broad, redshifted very peculiar Balmer−line profile with two narrow horns. We propose Spitzer IRS observations with the high resolution modules in order to detect, for the first time, the IR emission−line light echo of a giant flare. The IR emission−line spectrum is expected to be very rich, with a wealth of possible new diagnostics. Principal Investigator: Mara Salvato Institution: Caltech Technical Contact: Mara Salvato, Caltech Co−Investigators: Stefanie Komossa, MPE Arne Rau, Caltech Science Category: agn/quasars/radio galaxies Observing Modes: f Hours Approved: 1.9 Abstract: Spitzer_Approved_Extragalactic Printed_by_SSC Mar 25, 10 16:24 Page 534/742 Spitzer Space Telescope − General Observer Proposal #30606 The Spitzer view of the X−ray obscured Universe: the XMM−HBS sample Principal Investigator: Paola Severgnini Institution: INAF− Osservatorio Astronomico di Brera Technical Contact: Paola Severgnini, INAF Co−Investigators: Alessandro Caccianiga, INAF − Osservatorio Astronomico di Brera Filomena Cocchia, INAF − Osservatorio Astronomico di Brera Roberto Della Ceca, INAF − Osservatorio Astronomico di Brera Tommaso Maccacaro, INAF − Osservatorio Astronomico di Brera Elisabetta Memola, INAF − Osservatorio Astronomico di Brera Science Category: AGN/quasars/radio galaxies Observing Modes: IracMap MipsPhot Hours Approved: 22.6 Abstract: We propose here to perform IRAC (3.6, 4.5, 5.8 and 8 micron) and 2−band MIPS (24, 70 micron) imaging photometric observations of a statistically complete sample of 17 type 2 AGN drawn from the XMM−Newton Hard (4.5−7.5 keV) Bright Sample (HBS). The XMM−HBS sample is the largest hard X−ray sample available so far with a complete spectroscopic identification. These observations will give us the possibility to derive, for the first time, the spectral energy distributions (SEDs) from X−rays to MID−IR for a representative sample of X−ray selected absorbed AGN. The Spitzer data, combined with good X−ray and optical spectroscopic information, will allow us: 1) to investigate the possible presence of Compton−thick AGN; 2) to constrain the models of circumnuclear obscuration used to explain the physical processes in the sub−parsec circumnuclear region of AGN; and 3) to build a representative average SED for obscured AGN which will be useful to estimate photometric redshifts of distant sources. The total number of requested AORs is 34 (17 with IRAC and 17 with MIPS) for a total exposure time of 22.6 hours. Thursday March 25, 2010 xgal_covers.txt 267/371
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Extragalactic abstracts - IRSA - California Institute of Technology

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