Influence of mass-ratio corrections in extreme-mass-ratio inspirals for testing general relativity

被引：6

作者：

Shen, Ping ^{[1
,2
]}

Han, Wen-Biao ^{[1
,2
,3
,4
]}

Zhang, Chen ^{[1
]}

Yang, Shu-Cheng ^{[1
]}

Zhong, Xing-Yu ^{[1
,2
]}

Jiang, Ye ^{[1
,2
]}

Cui, Qiuxin ^{[5
]}

机构：

[1] Shanghai Astron Observ, Shanghai 200030, Peoples R China

[2] Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China

[3] UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China

[4] Shanghai Frontiers Sci Ctr Gravitat Wave Detect, 800 Dongchuan Rd, Shanghai 200240, Peoples R China

[5] Univ Sci & Technol China, Dept Astron, Hefei 230026, Peoples R China

来源：

PHYSICAL REVIEW D | 2023年 / 108卷 / 06期

基金：

中国国家自然科学基金;

关键词：

ROTATING BLACK-HOLE; GRAVITATIONAL-WAVES; PERTURBATIONS; EQUATIONS; SPIN;

D O I：

10.1103/PhysRevD.108.064015

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The popular waveform templates of extreme-mass-ratio inspirals usually omit the mass-ratio corrections in conservative dynamics, and employ adiabatic approximation to include the radiation reaction. With the help of effective-one-body dynamics, we investigate the influence of mass-ratio corrections in the conservative part on the gravitational waves. We find that for the extra-relativistic orbits, the mass-ratio corrections can produce obvious orbital dephasing even for a very small mass ratio and then affect the waveforms. More importantly, it is noted that omitting the mass-ratio corrections in waveform templates may induce a fake signal of deviation from general relativity.

引用

页数：19

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