Neutrino-driven supernovae: An accretion instability in a nuclear physics controlled environment

被引:34
作者
Janka, HT [1 ]
Buras, R [1 ]
Joyanesa, FSK [1 ]
Marek, A [1 ]
Rampp, M [1 ]
Scheck, L [1 ]
机构
[1] Max Planck Inst Astrophys, D-85741 Garching, Germany
关键词
D O I
10.1016/j.nuclphysa.2005.05.008
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
New simulations demonstrate that low-mode, nonradial hydrodynamic instabilities of the accretion shock help starting hot-bubble convection in supernovae and thus support explosions by the neutrino-heating mechanism. The prevailing conditions depend on the high-density equation of state which governs stellar core collapse, core bounce, and neutron star formation. Tests of this sensitivity to nuclear physics variations are shown for spherically symmetric models. Implications of current explosion models for r-process nucleosynthesis are addressed.
引用
收藏
页码:19C / 26C
页数:8
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