Herschel/PEP Dissects the Cosmic Infrared Background

Details Herschel/PEP Dissects the Cosmic Infrared Background Herschel/PEP Dissects the Cosmic Infrared Background

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aspc..446..309b&link_type=abstract

Galaxy evolution: Infrared to millimeter wavelength perspective. Proceedings of a conference held at Guilin, China 25-29 October

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Scientific paper

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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