期刊
ASTROPHYSICAL JOURNAL
卷 605, 期 2, 页码 645-655出版社
UNIV CHICAGO PRESS
DOI: 10.1086/381796
关键词
galaxies : evolution; galaxies : formation; galaxies : high-redshift; galaxies : starburst; infrared : galaxies; submillimeter
We discuss the submillimeter properties of extremely red objects (EROs) in the two Canada-UK Deep Sub-millimeter Survey (CUDSS) fields. We measure the mean submillimeter flux of the ERO population (to K' < 20.7) and find 0.40 +/- 0.07 mJy for EROs selected by (I-K) > 4.0 and 0.56 +/- 0.09 mJy for EROs selected by (R-K) > 5.3, but these measurements are dominated by discrete, bright submillimeter sources. We estimate that EROs produce 7%-11% of the far-infrared background at 850 mum. This is substantially less than a previous measurement by Wehner, Barger, & Kneib, and we discuss possible reasons for this discrepancy. We show that ERO counterparts to bright submillimeter sources lie within the starburst region of the near-infrared color-color plot of Pozzetti & Mannucci. Finally, we claim that pairs or small groups of EROs with separations of less than or similar to10 often mark regions of strong submillimeter flux.
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