作者: P.G. Perez-Gonzalez , M.J. Rieke , P. Barmby , S.P. Willner , C.W. Engelbracht
DOI: 10.1086/422821
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摘要: We present sub-millimeter statistical detections of galaxies discovered in the 5'x5' Spitzer Early Release Observations (to 4-15 microJy 5 sigma at 3.6-8 microns, 170 24 microns) through a stacking analysis our reanalysed SCUBA 8mJy survey maps, and identification new point source region. For sources detected 5.8 or 8 microns (154 111 respectively), we detect positive skews flux distributions 99.2-99.8% confidence using Kolmogorov-Smirnov tests, both 850 450 microns. also marginally micron 97% confidence, place limits on mean fluxes 3.6 4.5 sources. Integrating populations, find contribute 0.12 +/- 0.05 nW/m^2/sr to background, 2.4 0.7 background; similar contributions are made by micron-selected sample. infer that populations dominating extragalactic background light around quarter majority background.