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Dissecting the cosmic infra-red background with Herschel/PEP
- Publication Year :
- 2010
-
Abstract
- The constituents of the cosmic IR background (CIB) are studied at its peak wavelengths (100 and 160 um) by exploiting Herschel/PACS observations of the GOODS-N, Lockman Hole, and COSMOS fields in the PACS Evolutionary Probe (PEP) guaranteed-time survey. The GOODS-N data reach 3 sigma depths of ~3.0 mJy at 100 um and ~5.7 mJy at 160 um. At these levels, source densities are 40 and 18 beams/source, respectively, thus hitting the confusion limit at 160 um. Differential number counts extend from a few mJy up to 100-200 mJy, and are approximated as a double power law, with the break lying between 5 and 10 mJy. The available ancillary information allows us to split number counts into redshift bins. At z<br />Accepted for publication on the A&A Herschel Special Issue
- Subjects :
- Physics
Luminous infrared galaxy
COSMIC cancer database
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Infrared
Cosmic background radiation
Flux
FOS: Physical sciences
Astronomy and Astrophysics
Astrophysics
Galaxy
Redshift
Space and Planetary Science
Surface brightness
Astrophysics - Cosmology and Nongalactic Astrophysics
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....17522a96df8d419804eedc29ea5c456b