中微子泄漏与超新星爆发  

Neutrino Leakage and Supernova Explosion

作　　者：廖道兵 张妙静[1] 李彦[1] 潘江洪[1] 陈秀[1] 

机构地区：[1]广西师范大学物理科学与技术学院,桂林541004

出　　处：《天文学报》2014年第5期370-380,共11页Acta Astronomica Sinica

基　　金：国家自然科学基金项目(11065004)资助

摘　　要：在超新星爆发过程中,中微子的泄漏非常重要.采用一维球对称模型,在不同的中微子泄漏模式下,数值模拟了质量为12 M_⊙、14 M_⊙及15 M_⊙的Ⅱ型超新星爆发过程.结果表明:不同的中微子泄漏模式对超新星塌缩、激波的传播和爆发都具有影响;并给出了最有利于Ⅱ型超新星爆发的相关参数的最佳值.此外还讨论了物态方程与压缩模量对模拟结果的影响.In the process of supernova explosion, the neutrino leakage is very important. With different neutrino leakage schemes, the type II supernova explosions are simulated respectively for the stars with the mass of 12 M⊙, 14 M⊙, and 15M⊙ by using a one-dimensional spherically symmetric model. The results show that the different neutrino leakage schemes have influence on the supernova collapse, shock wave propagation, and explosion. And the best values of corrective parameters which are propitious to the type II supernova explosions are given. In addition, the impacts of the equation of state and the compression modulus on the simulating results are discussed.

关 键 词：超新星 中微子 物态方程 激波 

分 类 号：P145[天文地球—天体物理]