Stellar core collapse and supernova

Details Stellar core collapse and supernova Stellar core collapse and supernova

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985stin...8616172w&link_type=abstract

Presented at the 12th Texas Symposium of Relativistic Astrophysics, Jerusalem, 17 Dec. 1984

Astronomy and Astrophysics

Astronomy

1

Equations Of State, Gravitational Collapse, Stellar Models, Supernovae, Black Holes (Astronomy), Shock Waves, Stellar Evolution, Stellar Mass

Scientific paper

Massive stars that end their stable evolution as their iron cores collapse to a neutron star or black hole have long been considered good candidates for producing Type 2 supernovae. For many years the outward propagation of the shock wave produced by the bounce of these iron cores has been studied as a possible mechanism for the explosion. For the most part, the results of these studies have not been particularly encouraging, except, perhaps, in the case of very low mass iron cores or very soft nuclear equations of state. The shock stalls, overwhelmed by photodisintegration and neutrino losses, and the star does not explode. More recently, slow late time heating of the envelope of the incipient neutron star has been found to be capable of rejuvenating the stalled shock and producing an explosion after all. The present paper discusses this late time heating and presents results from numerical calculations of the evolution, core collapse, and subsequent explosion of a number of recent stellar models. For the first time they all, except perhaps the most massive, explode with reasonable choices of input physics.

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