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Two-temperature models of old supernova remnants with ion and electron thermal conductionTo investigate the potential effects thermal conduction may have on the evolution of old supernova remnants, we present the results of 1D (spherically symmetric) numerical simulations of a remnant in a homogeneous interstellar medium for four different cases: (1) without thermal conduction; (2) with both electron and ion thermal conduction assuming equal temperatures; (3) with electron thermal conduction only, following electron and ion temperatures separately; and (4) with both electron and ion thermal conduction following separate temperatures. We followed the entire evolution until the completion of the remnant bubble collapse. Our most significant result is that in remnant evolution studies concerned principally with either the shell or bubble evolution at late times, reasonable results are obtained with single-temperature models. When the electron and ion temperatures are followed separately, however, ion thermal conduction cannot safely be ignored.
Document ID
19930035783
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Cui, Wei
(NASA Headquarters Washington, DC United States)
Cox, Donald P.
(Wisconsin Univ. Madison, United States)
Date Acquired
August 15, 2013
Publication Date
December 10, 1992
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 401
Issue: 1
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
93A19780
Funding Number(s)
CONTRACT_GRANT: NAGW-2532
CONTRACT_GRANT: NAG5-629
Distribution Limits
Public
Copyright
Other

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