Publication Date:
2011-08-19
Description:
Extragalactic number counts and diffuse backgrounds at 25, 60, and 100 microns are predicted using new luminosity functions and improved spectral-energy distribution density functions derived from IRAS observations of nearby galaxies. Galaxies at redshifts z less than 3 that are like those in the local universe should produce a minimum diffuse background of 0.0085, 0.038, and 0.13 MJy/sr at 25, 60, and 100 microns, respectively. Models with significant luminosity evolution predict backgrounds about a factor of 4 greater than this minimum.
Keywords:
ASTROPHYSICS
Type:
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X); 367; L49-L53
Format:
text
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