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X-ray investigations of the hot ISMAt energies less than one keV, the intensity of the galactic x-ray background dominates that of the extragalactic background in almost every direction on the sky. Below 1/4 keV, the galactic x-ray background has a galactic stellar component, but the dominant emitter seems to be hot interstellar matter. The origin of the general 3/4 keV x-ray background remains uncertain, but one component must also be the contribution from hot interstellar matter. An overview is given of recent x-ray investigations of the hot interstellar medium using data from the ROSAT X-ray Telescope/Position-Sensitive Proportional Counter (XRT/PSPC) instrument. Several prominent features in the low energy x-ray background that are interpreted as fossil supernova remnants are discussed.
Document ID
19950049921
Document Type
Reprint (Version printed in journal)
Authors
Sanders, W. T. (Univ. of Wisconsin-Madison, Madison, WI US, United States)
Date Acquired
August 16, 2013
Publication Date
December 1, 1993
Publication Information
Publication: Advances in Space Research
Volume: 13
Issue: 12
ISSN: 0273-1177
Subject Category
ASTRONOMY
Funding Number(s)
CONTRACT_GRANT: NAG5-1726
CONTRACT_GRANT: NAG5-1894
CONTRACT_GRANT: NAS5-26078
Distribution Limits
Public
Copyright
Other

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