Extragalactic abstracts - IRSA - California Institute of Technology

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Spitzer_Approved_Extragalactic Mar 25, 10 16:24 Page 535/742 Spitzer Space Telescope − General Observer Proposal #50379 Probing Coeval Star Formation and Black Hole Growth in the Most Massive Galaxies Principal Investigator: Nick Seymour Institution: Spitzer Science Center Technical Contact: Nick Seymour, Spitzer Science Center Co−Investigators: Carlos De Breuck, ESO Patrick Ogle, Spitzer Science Center Matt Lehnert, Observatoire de Paris, Meudon Phil Appleton, IPAC Anna Sajina, Haverford Minh Huynh, IPAC Steve Croft, UC Berkeley Nicole Nesvadba, Observatoire de Paris, Meudon Arjun Dey, NOAO Mark Dickinson, NOAO Audrey Galametz, ESO/JPL Mark Lacy, SSC Emeric Le Floc’h, IFA, Hawaii Ray Norris, CSIRO Brigitte Rocca−Volmerange, IAP Alessandro Rettura, Johns Hopkins Daniel Stern, JPL Wil van Breugel, UC−Merced/LLNL Joel Vernet, ESO Andrew Zirm, Johns Hopkins Science Category: AGN/quasars/radio galaxies Observing Modes: IrsStare Hours Approved: 39.3 Abstract: At every epoch, powerful radio galaxies are associated with the most massive galaxies known as evidenced by their tight observed−frame K−z relation which traces the bright envolope of field galaxies. We have shown (Seymour et al. 2007) that the rest−frame H−band stellar luminosities of high−z radio galaxies (HzRGs) are uniformly consistent with stellar masses of ~5x10^11 Msun across 1
Spitzer_Approved_Extragalactic Mar 25, 10 16:24 Page 537/742 Spitzer Space Telescope − General Observer Proposal #20084 Quasar Bolometric Luminosity and Spectral Energy Distributions from Radio to X−ray Principal Investigator: Zhaohui Shang Institution: University of Wyoming Technical Contact: Zhaohui Shang, University of Wyoming Co−Investigators: Michael Brotherton, University of Wyoming Dean Hines, Space Science Institute Daniel Dale, University of Wyoming Science Category: AGN/quasars/radio galaxies Observing Modes: IrsStare MipsPhot Hours Approved: 8.4 Abstract: We propose to build the best SED data set spanning from radio to X−ray wavelengths for 35 quasars. We will use new and archival mid−to−far IR data from Spitzer as well as other existing multi−wavelength data. We have unique quasi−simultaneous FUV/UV−optical spectra for our sample, greatly reducing the uncertainty due to quasar intrinsic time variability in the UV bump. We will derive accurate bolometric luminosities for the sample and seek to establish a more reliable and accurate way to obtain the bolometric luminosity of quasars from their partial SEDs and/or spectral properties. We will also apply multivariate analysis to the SEDs, study the quasar multi−wavelength spectral properties and their dependence on the overall SEDs, and thus better understand the physical processes quasars employ emitting across the entire electromagnetic spectrum. Spitzer_Approved_Extragalactic Printed_by_SSC Mar 25, 10 16:24 Page 538/742 Spitzer Space Telescope − General Observer Proposal #30075 Unveil the Nature of Post−Starburst Quasars Principal Investigator: Zhaohui Shang Institution: University of Wyoming Technical Contact: Zhaohui Shang, University of Wyoming Co−Investigators: Michael Brotherton, University of Wyoming Dean Hines, Space Science Institute Daniel Dale, University of Wyoming Gabriella Canalizo, University of California, Riverside Rajib Ganguly, University of Wyoming Sabrina Cales, University of Wyoming Science Category: AGN/quasars/radio galaxies Observing Modes: IrsStare Hours Approved: 16.1 Abstract: We propose to obtain mid−IR spectra of 16 spectroscopically selected post−starburst quasars in order to fully characterize the properties of this new class. Post−starburst quasars are broad−lined AGN that also posses the spectral signatures of massive, moderate−aged stellar populations (in excess of ten billion solar masses and ages of hundreds of Myrs). This class represents several percent of the quasar population and may explicitly reveal how black hole/bulge correlations arise. We will compare their mid−IR SED and possible PAH features with other classes. The current project, which will also incorporate HST, SDSS, IRTF, KPNO and Keck data, will for the first time determine reliably for a sample of objects the properties of the massive starbursts (ages, masses), their black holes mass, accretion rate, morphologies, environments, and the relationships among these. Beyond just characterizing the properties of these populations, we plan to investigate the hypothesis that post−starburst quasars are an evolutionary phase in the lifetime of most quasars. Thursday March 25, 2010 xgal_covers.txt 269/371
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Extragalactic abstracts - IRSA - California Institute of Technology

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