J/A+A/512/A78 IAS Stacking Library in IDL (Bethermin+, 2010)
Spitzer deep and wide legacy mid- and far-infrared number counts and lower
limits of cosmic infrared background.
Bethermin M., Dole H., Beelen A., Aussel H.
<Astron. Astrophys. 512, A78 (2010)>
=2010A&A...512A..78B 2010A&A...512A..78B
ADC_Keywords: Models ; Galaxies, IR
Keywords: cosmology: observations - diffuse radiation - galaxies: statistics -
galaxies: evolution - galaxies: photometry - infrared: galaxies
Abstract:
We aim to place stronger lower limits on the cosmic infrared
background (CIB) brightness at 24um, 70um and 160um and measure the
extragalactic number counts at these wavelengths in a homogeneous way
from various surveys.
Using Spitzer legacy data over 53.6deg2 of various depths, we
build catalogs with the same extraction method at each wavelength.
Completeness and photometric accuracy are estimated with Monte-Carlo
simulations. Number count uncertainties are estimated with a
counts-in-cells moment method to take galaxy clustering into account.
Furthermore, we use a stacking analysis to estimate number counts of
sources not detected at 70um and 160um. This method is validated
by simulations. The integration of the number counts gives new CIB
lower limits.
Description:
Number counts reach 35uJy, 3.5mJy and 40mJy at 24um, 70um, and 160um,
respectively. We reach deeper flux densities of 0.38mJy at 70, and 3.1
at 160um with a stacking analysis.
Products (point spread function, counts, CIB, contributions, software)
are publicly available for download at
http://www.ias.u-psud.fr/irgalaxies/
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
prog.dat 81 15 Programs list
stacking/* . 15 IAS Stacking Library in IDL
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Byte-by-byte Description of file: prog.dat
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Bytes Format Units Label Explanations
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1- 42 A42 --- FileName Program filename
44- 81 A38 --- Title Title of the file
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History:
Copied at http://www.ias.u-psud.fr/irgalaxies/downloads.php
(End) Patricia Vannier [CDS] 08-Apr-2010