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CNO destruction by spallation and type I X-ray burstsRecent work on the surface boundary conditions of accreting neutron stars indicates that appreciable amounts of CNO elements can be destroyed by spallation. Previous authors assume an accretion of near-solar-abundance material which is not altered by boundary effects. Steady state models of accreting neutron stars are constructed assuming all but traces of metals are destroyed due to spallation in the surface layers. Models with solar accretion for comparison are also constructed. The models are compared with Exosat observations of 4U/MXB 1636 - 53. It is found that the simplifications introduced by assuming CNO destruction does not bring theory closer to describing what is observed.
Document ID
19920050405
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Tillett, Jason C.
(NASA Headquarters Washington, DC United States)
Macdonald, James
(Delaware, University Newark, United States)
Date Acquired
August 15, 2013
Publication Date
April 1, 1992
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 388
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
92A33029
Funding Number(s)
CONTRACT_GRANT: NAGW-1295
Distribution Limits
Public
Copyright
Other

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