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Extragalactic abstracts - IRSA - California Institute of Technology

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Spitzer_Approved_<strong>Extragalactic</strong><br />

Mar 25, 10 16:24 Page 503/742<br />

Spitzer Space Telescope − General Observer Proposal #3726<br />

The symbiosis <strong>of</strong> AGN activity and galaxy formation<br />

Principal Investigator: Jonathan Mittaz<br />

Institution: University <strong>of</strong> Alabama at Huntsville<br />

Technical Contact: Jonathan Mittaz, University <strong>of</strong> Alabama at Huntsville<br />

Co−Investigators:<br />

Mathew Page, MSSL, University College London<br />

Jason Stevens, Astronomy <strong>Technology</strong> Centre, ROE<br />

Francisco Carrera, IFCA, University <strong>of</strong> Cantabria, Spain<br />

Rob Ivison, Astronomy <strong>Technology</strong> Centre, ROE<br />

Ian Smail, <strong>Institute</strong> for Computational Cosmology, University<br />

Science Category: AGN/quasars/radio galaxies<br />

Observing Modes: IracMap MipsPhot<br />

Hours Approved: 6.0<br />

Abstract:<br />

According to galaxy formation models, cluster ellipticals formed in high density<br />

regions through hierarchical merging <strong>of</strong> gas rich sub−components. In local<br />

ellipticals, the strong correlation observed between black hole and bulge mass<br />

implies that galaxy formation is inextricably linked to the build up <strong>of</strong><br />

supermassive black holes. We have found 6 high redshift, X−ray luminous, but<br />

heavily absorbed AGN, embedded in strong bursts <strong>of</strong> star formation revealed in<br />

the submillimetre. Our SCUBA survey shows that the immediate vicinities <strong>of</strong> these<br />

objects contain large overdensities <strong>of</strong> ultraluminous star−forming galaxies which<br />

will evolve to form clusters. Here we propose to use SPITZER to measure the<br />

stellar masses <strong>of</strong> the companion galaxies, search for buried AGN, and thereby<br />

determine the sequence in which the cluster ellipticals are assembled, form<br />

their stars, and grow their massive black holes.<br />

Spitzer_Approved_<strong>Extragalactic</strong><br />

Printed_by_SSC<br />

Mar 25, 10 16:24 Page 504/742<br />

Spitzer Space Telescope − General Observer Proposal #41023<br />

The Evolution <strong>of</strong> Faint AGN at High Redshift<br />

Principal Investigator: Kirpal Nandra<br />

Institution: Imperial College London<br />

Technical Contact: Kirpal Nandra, Imperial College London<br />

Co−Investigators:<br />

James Aird, Imperial College London<br />

Pauline Barmby, SAO<br />

Mark Davis, UC Berkeley<br />

Mark Dickinson, NOAO<br />

Sandra Faber, UC Santa Cruz<br />

Giovanni Fazio, Harvard University<br />

Antonis Georgakakis, Imperial College London<br />

Puragra Guhathakurta, UC Santa Cruz<br />

Jiasheng Huang, SAO<br />

Rob Ivison, University <strong>of</strong> Edinburgh<br />

David Koo, UC Santa Cruz<br />

Shinae Park, SAO<br />

Ranga Ram−Chary, Caltech<br />

David Frayer, IPAC/Caltech<br />

Science Category: AGN/Quasars/Radio Galaxies<br />

Observing Modes: IracMap<br />

Hours Approved: 46.0<br />

Abstract:<br />

We propose a very deep (total 800ks/field) Chandra survey <strong>of</strong> 0.25 deg2 covering<br />

3 contiguous fields in the Extended Groth Strip, which have exceptional<br />

multiwaveband coverage obtained by the AEGIS project. These data, in combination<br />

with the CDF North and South, will provide a definitive measurement <strong>of</strong> the<br />

evolution <strong>of</strong> faint, X−ray selected AGN from z=3−4, where the optical number<br />

counts start to drop dramatically. In combination with ultradeep Spitzer data in<br />

the same region, this survey will also provide a crucial step forward towards a<br />

more complete census <strong>of</strong> AGN activity and the importance <strong>of</strong> Compton thick AGN at<br />

high z, with associated implications for the total accretion budget <strong>of</strong> the<br />

universe.<br />

Thursday March 25, 2010 xgal_covers.txt<br />

252/371

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