致密双星系统的引力辐射计算  

Calculate on Gravitational Radiation of Compact Binary

作　　者：周并举[1] 刘小娟[1] 

机构地区：[1]湖南科技大学物理学院,湖南湘潭411201

出　　处：《湖南科技大学学报（自然科学版）》2007年第2期123-126,共4页Journal of Hunan University of Science And Technology：Natural Science Edition

摘　　要：利用Landau-Lifshitz的能量-动量张量表述和四极矩公式对双星模型下的致密天体引力辐射源进行了讨论、计算了几种典型的致密双星系统的引力辐射(如PRS1913+16双星、PSRJ0737-3039A/B双脉冲星和双黑洞系统),并将计算结果与实际观测结果进行了比较,发现所得的结果在量级上与实际观测值在精度允许的范围内一致.说明双星模型和Landau-Lifshitz的能量-动量张量表述确为研究引力波辐射的一个好的近似.参13.With the Landau-Lifshitz＇ expression of energy-momentum press and the formula of quadrupole,the sources of gravitational radiation of some compact binary systems, were discassed, gravitational radiation of several compact binary systems （e.g. binary PRS1913＋16,bi-stars PSRJ0737-3039A/B and binary black holes） were calculated. Comparing with the theoretic results and the that of observation, it is found that there be a agreement between the observed data and theoretic results in accepting precision extent,and it show that the Landau-Lifshitz＇ expression of energy-momentum press and the formula of quadrupole surely be a good approximate way for research the emission of gravitational waves. 13refs.

关 键 词：引力辐射 能量-动量张量 双星 

分 类 号：TB122[理学—工程力学]