Stellar core collapse. II - Inner core bounce and shock propagation

Details Stellar core collapse. II - Inner core bounce and shock propagation Stellar core collapse. II - Inner core bounce and shock propagation

Jun 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...257..793v&link_type=abstract

Astrophysical Journal, Part 1, vol. 257, June 15, 1982, p. 793-820.

Astronomy and Astrophysics

Astrophysics

40

Astrophysics, Gravitational Collapse, Shock Wave Propagation, Stellar Evolution, Cores, Electron Capture, Energy Dissipation, Entropy, Equations Of State, Neutrinos, Stellar Models, Supernovae

Scientific paper

The disruption of massive stars, resulting from an explosion deep in their cores, is the most likely cause of Type II supernovae. Van Riper and Lattimer (1981) have studied the collapse of the core of a 15 solar masses star. At several times nuclear density the pressure is large enough to halt the implosion, and the homologous core 'bounces' and then rebounds slightly as it settles into hydrostatic equilibrium. A shock wave develops at the boundary between the stationary or expanding inner core and the infalling outer core. The current investigation is mainly concerned with the bounce and the propagation of the shock, continuing the evolution of the models described by Van Riper and Lattimer a few milliseconds further. It is found that the shock wave initially moves outward, but is weakened and 'fizzles' after it reaches densities where neutrinos, which are copiously produced by electron captures in the hot, dissociated shocked matter, can escape freely from behind the shock.

Affiliated with

Also associated with

No associations

Rating

Stellar core collapse. II - Inner core bounce and shock propagation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Stellar core collapse. II - Inner core bounce and shock propagation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stellar core collapse. II - Inner core bounce and shock propagation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1351699