Accuracy of the Post-Newtonian Approximation for Extreme-Mass Ratio Inspirals from Black-hole Perturbation Approach

Autor:	Sago, Norichika, Fujita, Ryuichi, Nakano, Hiroyuki
Rok vydání:	2016
Předmět:	General Relativity and Quantum Cosmology
Zdroj:	Phys. Rev. D 93, 104023 (2016)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.93.104023
Popis:	We revisit the accuracy of the post-Newtonian (PN) approximation and its region of validity for quasi-circular 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. Comment: 8 pages, 6 figures, minor modifications to match the published version in PRD
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1601.02174 Zobrazit plný text záznamu View this record from Arxiv