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: ジャーナルへの寄稿記事

6 引用 (Scopus)

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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.

元の言語英語
記事番号104023
ジャーナルPhysical Review D
93
発行部数10
DOI
出版物ステータス出版済み - 5 11 2016

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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