摘要
基于相对论平均场理论,研究了各种相互作用参数组(NL1、NL3、NLSH、TM1和GL 97)对中子星物质的性质和中子星整体结构的影响.发现参数组NL1、NL3和NLSH所给出的中子星内部的介子场强度、物质的组成比例、物态方程和中子星的整体特点基本相同,但与TM1和GL 97之间有较大的差别.相对于其他参数组,GL 97给出的介子场强度最弱,中子星的相对数密度最大,物态方程也最软,同时采用GL 97参数组计算的中子星的最大质量也最小.
The influence of effective interactions including NL1,NL3,NLSH,TM1 and GL-97 on the properties of neutron star matter and its global structure is studied in the framework of relativistic mean field theory. The results on meson field potential, composition of particles, equation of state and global feature of neutron star between the effective interactions NL1,NL3 and NLSH have short odds,but the results of TM1 and GL-97 have obvious difference with the former three effective interactions. Opposite to other effective interactions, Gl-97 has the weakest meson field potential, the largest neutron population, the softest equation of state and the minimum of maximum mass.
出处
《武汉大学学报（理学版）》
CAS
CSCD
北大核心
2004年第1期38-42,共5页
Journal of Wuhan University:Natural Science Edition
基金
国家自然科学基金(10025522
19935030
10047001)
国家重点基础研究发展规划(G2000077407)资助项目
