A grey {gamma}-ray transfer procedure for supernovae

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The {gamma}-ray transfer in supernovae for the purposes of energy deposition in the ejecta can be approximated as grey radiative transfer using mean opacities. In past work there is a single pure absorption mean opacity which is a free parameter. Accurate results can be obtained by varying this mean opacity to fit the results of more accurate procedures. In this paper, the authors present a grey {gamma}-ray transfer procedure for energy deposition in which there are multiple mean opacities that are not free parameters and that have both absorption and scattering components. This procedure is based on a local-state (LS) ... continued below

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7 p.

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Jeffery, D.J. December 1, 1997.

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The {gamma}-ray transfer in supernovae for the purposes of energy deposition in the ejecta can be approximated as grey radiative transfer using mean opacities. In past work there is a single pure absorption mean opacity which is a free parameter. Accurate results can be obtained by varying this mean opacity to fit the results of more accurate procedures. In this paper, the authors present a grey {gamma}-ray transfer procedure for energy deposition in which there are multiple mean opacities that are not free parameters and that have both absorption and scattering components. This procedure is based on a local-state (LS) approximation, and so they call it the LS grey {gamma}-ray transfer procedure or LS procedure for short.

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7 p.

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OSTI as DE98005058

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  • 2. Oak Ridge symposium on atomic and nuclear astrophysics, Oak Ridge, TN (United States), 2-6 Dec 1997

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  • Other: DE98005058
  • Report No.: ORNL/CP--97169
  • Report No.: CONF-971208--
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 654165
  • Archival Resource Key: ark:/67531/metadc707678

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  • December 1, 1997

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  • Sept. 12, 2015, 6:31 a.m.

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  • Nov. 4, 2015, 6:23 p.m.

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Jeffery, D.J. A grey {gamma}-ray transfer procedure for supernovae, article, December 1, 1997; United States. (digital.library.unt.edu/ark:/67531/metadc707678/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.