S-COSMOS: The Spitzer Deep Survey of the HST COSMOS 2-Degreee ACS Field

Details S-COSMOS: The Spitzer Deep Survey of the HST COSMOS 2-Degreee ACS Field S-COSMOS: The Spitzer Deep Survey of the HST COSMOS 2-Degreee ACS Field

Jun 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005sptz.prop20070s&link_type=abstract

Spitzer Proposal ID #20070

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Scientific paper

We propose a deep imaging survey with Spitzer using both the IRAC and MIPS detectors to observe the HST-COSMOS 2-square degree field. COSMOS is a nearly completed HST Treasury program (Cy12-13) that is specifically designed to probe the coupled formation and evolution of galaxies and large-scale structure on scales up to 2x10^14 M_sun during the formative era of galaxy, AGN, and clusters (z~0.5-3). The COSMOS survey also includes extensive muulti-wavelength imaging from X-ray to radio (XMM, GALEX, Subaru, NOAO, VLA and CSO) and spectroscopic surveys (VLT and Magellan). The Spitzer observations proposed here complete this survey with vital infrared coverage at 3-160 microns. IRAC imaging is critical for deriving stellar masses (with minimized extinction); MIPS imaging will be used to determine tar formation rates, and AGN activity for enormous samples of galaxies (> 10^5). COSMOS specifically probes the dependence of morphological properties, star formation, and galaxtic masses on the clustering environment over the last 75% of cosmic history. For the first time, COSMOS will yield statistics of high-redshift sources free from cosmic variance, and enable the discovery and characterization of relatively rare objects. COSMOS is thus the necessary complement to deeper but smaller surveys (e.g. GOODS). Our team will immediately release the Spitzer observations, along with our other multi-wavelength COSMOS data and source catalogs, to the astronomical community to ensure maximum scientific return from this survey.

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