Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...326..235v&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 326, March 1, 1988, p. 235-240.
Astronomy and Astrophysics
Astrophysics
10
Equations Of State, Gravitational Collapse, Relativity, Stellar Cores, Stellar Interiors, Stellar Models, Black Holes (Astronomy), Nuclear Astrophysics, Shock Waves
Scientific paper
The consequences of the equation of state above nuclear density, parameterized by a compressibility and an adiabatic index, for the strength of the reflected shock wave following core bounce in stellar collapse are studied using a hydrodynamic model. Particular attention is paid to the amplification of the shock strength when bounce occurs near those critical parameters which would result in continued collapse to the black hole. Comparisons are made to models where Newtonian hydrodynamics is assumed, and the relativistic effects are contrasted with the dependence on the homologous core mass. The dependence of the collapsed core mass (and the Newtonian shock strength) on the (constant) electron fraction Y(e) is shown.
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