Accuracy of the post-Newtonian approximation for extreme mass ratio inspirals from a black-hole perturbation approach

Norichika Sago, Ryuichi Fujita, Hiroyuki Nakano

研究成果: Contribution to journalArticle査読

9 被引用数 (Scopus)

抄録

We revisit the accuracy of the post-Newtonian (PN) approximation and its region of validity for quasicircular orbits of a point particle in the Kerr spacetime, by using an analytically known highest post-Newtonian order gravitational energy flux and accurate numerical results in the black hole perturbation approach. It is found that regions of validity become larger for higher PN order results although there are several local maximums in regions of validity for relatively low-PN order results. This might imply that higher PN order calculations are also encouraged for comparable-mass binaries.

本文言語英語
論文番号104023
ジャーナルPhysical Review D
93
10
DOI
出版ステータス出版済み - 5 11 2016

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(その他)

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