Stellar core collapse : a Boltzmann treatment of neutrino-electron scattering
Stellar core collapse : a Boltzmann treatment of neutrino-electron scattering
复制标题
恒星核心塌缩：中微子电子散射的玻尔兹曼处理
DOI：
10.1086/172791
复制
发表时间：
1993
期刊：
影响因子：
--
通讯作者：
S. Bruenn
中科院分区：
文献类型：
--
作者：
A. Mezzacappa;S. Bruenn
中子-电子散射在前超新星星星引力坍缩过程中的铁核去质子化中起着重要作用，因此，在II型超新星激波喷射机制的成功或失败中起着重要作用。在本文中，我们提出的第一个模拟现实的引力坍缩中的中微子-电子散射是不近似的中微子输运方程与截断勒让德级数或福克-普朗克近似。我们开始是1.17米。从Nomoto-Hashimoto 13 Ma前超新星星星中提取的铁核
Neutrino-electron scattering plays a major role in the deleptonization of the iron core during the gravitational collapse of a presupernova star and, hence, plays a major role in the success or failure of the shock ejection mechanism for Type II supernovae. In this paper we present the first simulation of realistic gravitational collapse in which neutrino-electron scattering is not aproximated in the neutrino transport equation with either a truncated Legendre series or a Fokker-Planck approximation. We begin with a 1.17 M ○. iron core extracted from a Nomoto-Hashimoto 13 Ma presupernova star