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Galacti chemical evolution: Hygrogen through zincUsing the output from a grid of 60 Type II supernova models (Woosley & Weaver 1995) of varying mass (11 approx. less than (M/solar mass) approx. less than 40) and metallicity (0, 10(exp -4), 0.01, and 1 solar metallicity), the chemical evolution of 76 stable isotopes, from hydrogen to zinc, is calculated. The chemical evolution calculation employs a simple dynamical model for the Galaxy (infall with a 4 Gyr e-folding timescale onto a exponential dsk and 1/r(exp 2) bulge), and standard evolution parameters, such as a Salpeter initial mass function and a quadratic Schmidt star formation rate. The theoretical results are compared in detail with observed stellar abundances in stars with metallicities in the range -3.0 approx. less than (Fe/H) approx. less than 0.0 dex. While our discussion focuses on the solar neighborhood where there are the most observations, the supernova rates, an intrinsically Galactic quality, are also discussed.
Document ID
19950056073
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Timmes, F. X.
(Lawrence Livermore National Lab. Livermore, CA, United States)
Woosley, S. E.
(Lawrence Livermore National Lab. Livermore, CA, United States)
Weaver, Thomas A.
(Lawrence Livermore National Lab. Livermore, CA, United States)
Date Acquired
August 16, 2013
Publication Date
June 1, 1995
Publication Information
Publication: Astrophysical Journal Supplement Series
Volume: 98
Issue: 2
ISSN: 0067-0049
Subject Category
Astrophysics
Accession Number
95A87672
Funding Number(s)
CONTRACT_GRANT: NAGW-2525
CONTRACT_GRANT: W-7405-ENG-48
CONTRACT_GRANT: NSF AST-91-15367
Distribution Limits
Public
Copyright
Other

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