OJ287:Post-Newtonian Calculation in Harmonic Coordinate and Pulsar Timing Residual Confirmation

被引：1

作者：

程斌

张杨

机构：

[1] KeyLaboratoryforResearchesinGalaxiesandCosmology,DepartmentofAstronomy,UniversityofScienceandTechnologyofChina

来源：

CommunicationsinTheoreticalPhysics | 2015年 / 64卷 / 07期

关键词：

gravitational radiation; Post-Newtonian; harmonic coordinate; pulsar timing residual; OJ287;

D O I：

暂无

中图分类号：

P145.8 [塌缩星（黑洞）]; P142.84 [];

学科分类号：

070401 ;

摘要：

We calculate and discuss the motion of the binary black hole OJ287 based on Post-Newtonian approximation in a harmonic coordinate. With gravitational waveform obtained, theoretical timing residual of PSR B1855+09 induced by gravitational radiation of OJ287 is presented and compared with observed data, further shows that hypothesis referring to OJ287 as a binary BH system might be proper. The energy flux of gravitational radiation from binary is also provided,from which we find that the flux changes sign successively:N> 0,1PN< 0,2PN> 0, in agreement with the relative signs of forces of each PN order, revealed in the previous work.

引用

页码：54 / 58

页数：5

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