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Perspective on the local interstellar mediumTheoretical local-interstellar-medium (LISM) models designed to explain the observed soft-X-ray background (SXRB) are reviewed. Consideration is given to the LISM in the immediate solar vicinity (the Local Fluff, extending 3-10 pc), the local bubble (a large irregularly shaped cavity filled with very-low-density gas at 10 to the 6th K and surrounded by denser material), the three-dimensional structure of the SXRB emitting region, the thermal nature of the SXRB, and the implications of process time scales for LISM theories. A number of possible mechanisms are discussed in the context of a model in which the LISM hot gas is a remnant from the creation of the local bubble about 20 Myr ago and/or the product of supernova reheating as recently as 150 kyr ago.
Document ID
19870037366
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Cox, D. P.
(Wisconsin Univ. Madison, WI, United States)
Snowden, S. L.
(Wisconsin, University Madison, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1986
Publication Information
Publication: Advances in Space Research
Volume: 6
Issue: 2 19
ISSN: 0273-1177
Subject Category
Astrophysics
Accession Number
87A24640
Funding Number(s)
CONTRACT_GRANT: NAG5-629
Distribution Limits
Public
Copyright
Other

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