The number counts and infrared backgrounds from infrared-bright galaxies

Details The number counts and infrared backgrounds from infrared-bright galaxies The number counts and infrared backgrounds from infrared-bright galaxies

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...367l..49h&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 367, Feb. 1, 1991, p. L49-L53. Research supported by NASA IRAS Ex

Astronomy and Astrophysics

Astronomy

52

Background Radiation, Galactic Evolution, Infrared Sources (Astronomy), Universe, Cosmic Background Explorer Satellite, Infrared Astronomy Satellite, Red Shift, Spectral Energy Distribution, Star Formation

Scientific paper

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.

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