Effects from Periastron Advance of Eccentric Binary Stars  

作　　者：李瑾 仲元红 潘宇 

机构地区：[1]College of Physics,Chongqing University [2]College of Communication Engineering,Chongqing University [3]College of Mathmatic and Physics,Chongqing University of Posts and Telecommunications

出　　处：《Communications in Theoretical Physics》2012年第4期603-606,共4页理论物理通讯（英文版）

基　　金：Supported by the Fundamental Research Funds for the Central Universities under Grant No. CDJZR11300005

摘　　要：In this paper,we discuss the coefficients of Gravitational waveform due to eccentric binaries periastron advance with evolved eccentricity.For the basic harmonic modes(n ≤ 5),the frequency split and corresponding relative strengths in the spectrum are figured out.Taking the well known binary systems PSRB 1913+16 and PSRB 1534+12 as examples,we study the dominant harmonic and its frequency split caused by periastron advance in the spectra,and give an estimation of detectability for PSRB 1913+16 and PSRB 1534+12,which are the promising targets for space observatories of gravitational wave.

关 键 词：eccentric binary stars frequency split periastron advance 

分 类 号：P14[天文地球—天体物理]