Constraints on models for the high- and low-energy X-ray backgrounds

Details Constraints on models for the high- and low-energy X-ray backgrounds Constraints on models for the high- and low-energy X-ray backgrounds

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...379...37d&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 379, Sept. 20, 1991, p. 37-51. Research supported by NSF.

Astronomy and Astrophysics

Astronomy

3

Astronomical Models, Background Radiation, Black Holes (Astronomy), Intergalactic Media, Rosat Mission, X Ray Binaries, Cosmic Background Explorer Satellite, Cosmology, Energy Distribution, Isotropy, Massive Stars, Radiant Flux Density

Scientific paper

Energy, flux, and isotropy constraints are applied to models for the high- and low-energy X-ray backgrounds to determine which models are consistent with the observations in various cosmological models. Predictions of the models are discussed, as are the constraints which will result from the Rosat deep survey. Two of the three models considered have difficulty producing the high-energy X-ray background in a flat matter-dominated universe. The massive black hole model is able to account for the observed characteristics of the high-energy X-ray background in such a universe, but the massive X-ray binary and SN models are inconsistent with the observations. In an open universe, or a flat universe dominated by a cosmological constant, both the massive black hole model and the SN model are consistent with the constraints and could produce the high-energy background.

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