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Time-dependent neutrino transport out of dense stellar cores

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Abstract

Time-dependent neutrino transport out of an optically thick neutronized stellar core is calculated to study the effects of neutrino degeneracy and of source depletion. Neutrino trapping inhibits further neutrino emission until neutrinos peel out of the outer zones of the core, exposing successively inner zones. This inwardly propagating neutrino rarefaction wave can lead toe −+p⇄v+n oscillations in chemical composition. The effect of neutrino Fermi statistics is to retard considrably and disperse neutrino leakage out of the core, making neutrino transport insignificant during fast stages of core collapse.

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Authors and Affiliations

  1. Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem, Israel

    I. Lichtenstadt, A. Ron, N. Sack & J. J. Wagschal

  2. Dept of Physics, University of Pennsylvania, Philadelphia, Pennsylvania, USA

    S. A. Bludman

Authors
  1. I. Lichtenstadt
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  2. A. Ron
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  3. N. Sack
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  4. J. J. Wagschal
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  5. S. A. Bludman
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Additional information

Supported in part by the U.S. Department of Energy under Contract EY-76-C-02-3071.

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Lichtenstadt, I., Ron, A., Sack, N. et al. Time-dependent neutrino transport out of dense stellar cores. Astrophys Space Sci 71, 219–227 (1980). https://doi.org/10.1007/BF00646920

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  • DOI: https://doi.org/10.1007/BF00646920

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