Constraints on a hot intergalactic medium from the X-ray and submillimeter backgrounds

Details Constraints on a hot intergalactic medium from the X-ray and submillimeter backgrounds Constraints on a hot intergalactic medium from the X-ray and submillimeter backgrounds

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...349l...9l&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 349, Jan. 20, 1990, p. L9-L12.

Astronomy and Astrophysics

Astrophysics

7

Cosmic X Rays, Intergalactic Media, Relic Radiation, Submillimeter Waves, Bremsstrahlung, Compton Effect, Distribution Functions, Electron Distribution, Electron Energy

Scientific paper

If the X-ray background is due to emission from a hot intergalactic medium (IGM), the cosmic microwave background is expected to be distorted as a result of Compton scattering. Recently, an excess in the submillimeter band has been measured by the Nagoya-Berkeley group. It is shown that even if the initial electron distribution function is non-Maxwellian, the reported distortion at 0.3 mm is too small to be consistent with a hot, homogeneous IGM model for the X-ray background.

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