2004ApJ...605..645W

We discuss the submillimeter properties of extremely red objects (EROs) in the two Canada-UK Deep Submillimeter 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 µm. 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 ≲10" often mark regions of strong submillimeter flux.