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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.
Fadda, D.
Marleau, F.R.
Soifer, B.T.
Im, M.
Armus, L.
Frayer, D.T.
Storrie-Lombardi, L.J.
Thompson, D.J.
Teplitz, H.I.
Helou, G.
Appleton, P.N.
Chapman, S.
Fan, F.
Heinrichsen, I.
Lacy, M.
Shupe, D.L
Squires, G.K.
Surace, J.
G., Wilson
Keywords: galaxies
galaxy evolution
infrared luminous
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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