Stellar core collapse - Numerical model and infall epoch

Details Stellar core collapse - Numerical model and infall epoch Stellar core collapse - Numerical model and infall epoch

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apjs...58..771b&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 58, Aug. 1985, p. 771-841.

Statistics

Computation

322

Gravitational Collapse, Stellar Cores, Stellar Models, Computational Astrophysics, Density Distribution, Entropy, Equations Of State, Hydrodynamic Equations, Neutrinos, Particle Interactions, Radiation Transport

Scientific paper

The core infall stage of the final evolution of a ten solar mass star is studied using an accurate and detailed numerical model. The features of the model include a realistic initial model and equation of state, general relativistic hydrodynamics, independent treatment of neutrino pairs, multigroup flux-limited diffusion, direct solution of the electron scattering and thermal production terms, evaluation of exact neutrino interaction expressions, and a consistent treatment of the effects of matter compression and expansion on the neutrinos, including the transparent cutoff. Deleptonization occuring during the collapse is carefully examined, and a detailed comparison is made between the numerical results for the collapse and shock propagation phases and the conceptual framework.

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