IRAC-selected Extremely Red Objects in the GOODS Fields

Details IRAC-selected Extremely Red Objects in the GOODS Fields IRAC-selected Extremely Red Objects in the GOODS Fields

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20913208y&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #132.08; Bulletin of the American Astronomical Society,

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Scientific paper

Using the deep Infrared Array Camera (IRAC) observations of the Great Observatories Origins Deep Survey (GOODS) Spitzer Legacy Program, we construct a large sample of IRAC-selected Extremely Red Objects (IEROs). Such IEROs are luminous in IRAC passbands, but are very faint or even invisiblein optical. Our previous work in the HUDF shows that such a population is likely dominated by very massive, passively-evolving, very old galaxies at
z 2.4. This current study will extend to a much wider field, and will investigate 1) the fraction of passively-evolving galaxies; 2) the overlapping fraction between IEROs and other types of red galaxies such as EROs and DRGs; 3) the contribution of IEROs to the global stellar mass density; and 4) their possible progenitors and descendants.

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