Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2010-06-07
ApJ 721, 424 (2010)
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
v3 matches published manuscript; small grammatical and typographical changes from v2
Scientific paper
The surface density of submillimeter (sub-mm) galaxies as a function of flux, usually termed the source number counts, constrains models of the evolution of the density and luminosity of starburst galaxies. At the faint end of the distribution, direct detection and counting of galaxies are not possible. However, gravitational lensing by clusters of galaxies allows detection of sources which would otherwise be too dim to study. We have used the largest catalog of sub-mm-selected sources along the line of sight to galaxy clusters to estimate the faint end of the 850 micron number counts; integrating to S = 0.10 mJy the equivalent flux density at 850 microns is v I_{v} = 0.24 +/- 0.03 nW/m^2/sr. This provides a lower limit to the extragalactic far-infrared background and is consistent with direct estimates of the full intensity from the FIRAS. The results presented here can help to guide strategies for upcoming surveys carried out with single dish sub-mm instruments.
Blain Andrew
Halpern Mark
Levenson Louis
Zemcov Michael
No associations
LandOfFree
Contribution of Lensed SCUBA Galaxies to the Cosmic Infrared Background does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Contribution of Lensed SCUBA Galaxies to the Cosmic Infrared Background, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Contribution of Lensed SCUBA Galaxies to the Cosmic Infrared Background will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-28998