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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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