Abstract
view Abstract Citations (62) References (41) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS On the origin of the 1 keV diffuse X-ray background Nousek, J. A. ; Fried, P. M. ; Sanders, W. T. ; Kraushaar, W. L. Abstract Soft X-ray sky survey data for high galactic latitudes are used to constrain simple geometric models for the source of the diffuse X-ray background at 1 keV. The intensity maps show two extended and enhanced features, in Eridanus and in the direction of the galactic center, with a relatively uniform sky away from these features and an observed degree of isotropy consistent with a model in which the 0.5-1.2 keV background consists of an isotropic extragalactic component and a thick disk galactic component. A temperature of 2-3 million K and an emission pressure of 0.004 per cm to the 6th pc are derived for the galactic component from an assumed spectrum of 11E to the -1.4 power photons/sq cm s sr keV. While consistent with the data, a local, isotropically distributed source model is shown to pose physical difficulties. Publication: The Astrophysical Journal Pub Date: July 1982 DOI: 10.1086/160055 Bibcode: 1982ApJ...258...83N Keywords: Background Radiation; Diffuse Radiation; Interstellar Matter; Milky Way Galaxy; X Ray Astronomy; Galactic Nuclei; Isotropy; Sky Surveys (Astronomy); Astrophysics full text sources ADS |
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