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|Title: ||Spitzer 24micron observations of optical/near-IR selected extremely red galaxies : evidence for assembly of massive galaxies at z ~ 1 - 2?|
|Authors: ||Yan, Lin|
Choi, Philip I.
|Issue Date: ||27-Sep-2004 |
|Publisher: ||Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2004.|
|Citation: ||Space Telescope Science Institute (STSCI) Mini Workshop Massive Galaxies over Cosmic Time, Baltimore, Maryland, September 27-29, 2004.|
|Abstract: ||We carried out the direct measurement of the fraction of dusty sources in a sample of extremely red galaxies with (R-Ks) ≥ 5.3 mag and Ks<20.2 mag, using 24µm mid infrared data from the Spitzer Space Telescope. Combining deep 24µm, Ks- and R-band data over an area of ~64 sq.arcmin in the ELAIS N1 field of the Spitzer First Look Survey (FLS), we find that 50±60% of our ERO sample have measurable 24µm flux above the 3σ flux flux limit of 40µJy. This flux limit corresponds to a SFR of 12 Mө/yr at z~1, much more sensitive than any precious long wavelength measurement...|
|Appears in Collections:||JPL TRS 1992+|
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