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Gamma ray constraints on the Galactic supernova rateMost Galactic optical supernovae are hidden due to severe extinction in the disk, but could be detectable through their gamma-ray afterglow. Ti-44 is among the potentially detectable isotopes in supernova ejecta. HEAO 3 and SMM sky surveys have not detected gamma-ray lines from the decay of Ti-44, thus constraining SN rates and nucleosynthesis. We perform Monte Carlo simulations of the gamma-ray signatures of SN occurring during the last millenium to interpret the gamma-ray paucity.
Document ID
19930044929
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hartmann, D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
The, L.-S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Clayton, D. D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Leising, M. (Clemson Univ. SC, United States)
Mathews, G. (Lawrence Livermore National Lab. CA, United States)
Woosley, S. E. (Lick Observatory Santa Cruz, CA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Publication Information
Publication: Astronomy and Astrophysics Supplement Series
Volume: 97
Issue: 1
ISSN: 0365-0138
Subject Category
Astrophysics
Accession Number
93A28926
Funding Number(s)
CONTRACT_GRANT: NAGW-2525
CONTRACT_GRANT: NAG5-1578
CONTRACT_GRANT: W-7405-ENG-48
CONTRACT_GRANT: NSF AST-88-13649
CONTRACT_GRANT: NSF AST-91-15367
Distribution Limits
Public
Copyright
Other

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