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Cosmic far-ultraviolet background radiation - Probe of a dense hot intergalactic mediumLine and continuum radiation fluxes have been computed for a wide range of enriched intergalactic medium (IGM) models. Observations of the diffuse extragalactic light at optical and far-ultraviolet wavelengths are found to provide a potentially important probe of a dense hot intergalactic medium. If the diffuse X-ray background is produced by this gas, the models constrain the cosmological density parameter (Omega) to be less than 0.4. The associated Compton distortions of the cosmic blackbody background radiation and the optical depths to distant quasars at X-ray wavelengths are also evaluated.
Document ID
19790061098
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Sherman, R. D.
(California Institute of Technology, Jet Propulsion Laboratory, Theoretical Physics and Cosmology Group, Pasadena Calif., United States)
Silk, J.
(California, University Berkeley, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
July 15, 1979
Publication Information
Publication: Astrophysical Journal
Subject Category
Astrophysics
Accession Number
79A45111
Distribution Limits
Public
Copyright
Other

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