Submillimeter Detections of Spitzer Space Telescope Galaxy Populations
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We present submillimeter statistical detections of galaxies discovered in the 5 x 5 Spitzer Early Release Observations (to 4-15 Jy 5 at 3.6-8 m, 170 Jy at 24 m) through a stacking analysis of our reanalyzed SCUBA 8 mJy survey maps and a Spitzer identification of a new submillimeter point source in the 8 mJy survey region. For sources detected at 5.8 or 8 m (154 and 111 sources, respectively), we detect positive skews in the submillimeter flux distributions at 99.2%-99.8% confidence using Kolmogorov-Smirnov tests, at both 850 and 450 m. We also marginally detect the Spitzer 24 m galaxies at 850 m at 97% confidence and place limits on the mean submillimeter fluxes of the 3.6 and 4.5 m sources. Integrating the submillimeter fluxes of the Spitzer populations, we find the 5.8 m galaxies contribute 0.12 0.05 nW m -2 sr -1 to the 850 m background and 2.4 0.7 nW m -2 sr -1 to the 450 m background; similar contributions are made by the 8 m-selected sample. We infer that the populations dominating the 5.8 and 8 m extragalactic background light also contribute around a quarter of the 850 m background and the majority of the 450 m background.
The Astrophysical Journal Supplement Series
author list (cited authors)
Serjeant, S., Mortier, A., Ivison, R. J., Egami, E., Rieke, G. H., Willner, S. P., ... Wilson, G.
complete list of authors
Serjeant, S||Mortier, AMJ||Ivison, RJ||Egami, E||Rieke, GH||Willner, SP||Rigopoulou, D||Alonso-Herrero, A||Barmby, P||Bei, L||Dole, H||Engelbracht, CW||Fazio, GG||Le Floc’h, E||Gordon, KD||Greve, TR||Hines, DC||Huang, J-S||Misselt, KA||Miyazaki, S||Morrison, JE||Papovich, C||Pérez-González, PG||Rieke, MJ||Rigby, J||Wilson, G