Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997stin...9928842j&link_type=abstract
Technical Report, Atomic and Nuclear Astrophysics Office of Energy Research
Astronomy and Astrophysics
Astrophysics
Energy Absorption, Radiative Transfer, Gamma Rays, Energy Transfer, Supernovae, Opacity, Luminosity, Scattering, Ejecta, Approximation
Scientific paper
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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