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  • 1980-1984  (11)
  • 1975-1979
  • 1981  (11)
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  • 1980-1984  (11)
  • 1975-1979
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  • 11
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    Unknown
    Observationally determined silicon II oscillator strengths (1981)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Si II oscillator strengths for eight resonance lines from the ground state have been determined using a curve-of-growth analysis of interstellar data from the Copernicus and International Ultraviolet Explorer satellites. The oscillator strengths for 1526 A and 1808 A increase by factors of 3.0 and 1.5, respectively, from previously tabulated values; those for 989 A and 1020 A decrease by factors of 0.55 and 0.60, respectively. These new values result in better silicon abundances for interstellar clouds and resolve a long-standing puzzle in the interpretation of quasar absorption line data.
    Keywords: ASTROPHYSICS
    Type: Astrophysical Journal; vol. 246
    Format: text
    Location Call Number Expected Availability
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