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Paper: Herschel/PEP Dissects the Cosmic Infrared Background
Volume: 446, Galaxy Evolution: Infrared to Millimeter Wavelength Perspective
Page: 309
Authors: Berta, S.; Magnelli, B.; Nordon, R.; Lutz, D.; PEP Team
Abstract: Using data from the PACS Evolutionary Probe (PEP) survey, we study the cosmic far-infrared background (CIB) in GOODS-N, GOODS-S, Lockman Hole, COSMOS and Abell 2218. Number counts cover more than two orders of magnitude in flux, from ∼1 mJy to few hundreds mJy. Stacking of 24 μm sources and P(D) statistics extend the analysis down to sub-mJy regimes. CIB surface brightnesses are νIν = 3.61 ± 1.12, 8.04 ± 1.39 and 8.84 ± 1.11 [nW m–2 sr–1] at 70, 100, and 160 μm, respectively. These correspond to 56 ± 10% and 70 ± 9% of the direct measurements at 100 and 160 μm. Through P(D) analysis, these fractions increase to ∼60% and ∼82%. Most of the resolved CIB was radiated at z ≤ 1.0, red sources lying at higher redshift than blue ones.
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