摘要
正反中微子的吸收反应截面是影响初生中子星演化的重要参量.改进了在初生中子星高温环境中任意简并条件下的中微子和反中微子被重子吸收截面的计算方法,同时综合考虑了能量动量守恒、磁场效应和重子(中子或质子)的热运动效应,得到更精确的中微子和反中微子吸收反应截面.结果对进一步研究星风中的中微子加热率、中微子输运过程中的不透明度、合理解释中子星的相关观测现象有重要作用.
The neutrino and anti-neutrino absorption sections are important parameters for the evolution of proto-neutron stars. In this paper, we improve the method of evaluating the neutrino and anti-neutrino absorption sections in the high temperature environments of proto-neutron stars, considering the energy-momentum conservation, the magnetic field and the thermal motion effects of baryons (neutrons or protons), and obtain the more accurate neutrino and anti-neutrino absorption sections. These results may play an important role for the further studies of neutrino heating rate in the wind of proto-neutron stars, the opacity in neutrino transportation process and the interpretation of the observed phenomena associated with neutron stars.
出处
《中国科学:物理学、力学、天文学》
CSCD
北大核心
2012年第12期1371-1376,共6页
Scientia Sinica Physica,Mechanica & Astronomica
基金
国家自然科学基金(批准号:11273020)
四川省教育厅科研基金(编号:10ZC014
09ZB087)
西华师范大学科研基金(编号:11B007
11B008)资助项目