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Transition from inspiral to plunge for a compact body in a circular equatorial orbit around a massive, spinning black hole

Ori, Amos and Thorne, Kip S. (2000) Transition from inspiral to plunge for a compact body in a circular equatorial orbit around a massive, spinning black hole. Physical Review D, 62 (12). Art. No. 124022. ISSN 0556-2821. http://resolver.caltech.edu/CaltechAUTHORS:ORIprd00

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Abstract

There are three regimes of gravitational-radiation-reaction-induced inspiral for a compact body with mass μ, in a circular, equatorial orbit around a Kerr black hole with mass M≫μ: (i) the adiabatic inspiral regime, in which the body gradually descends through a sequence of circular, geodesic orbits; (ii) a transition regime, near the innermost stable circular orbit (isco); (iii) the plunge regime, in which the body travels on a geodesic from slightly below the isco into the hole’s horizon. This paper gives an analytic treatment of the transition regime and shows that, with some luck, gravitational waves from the transition might be measurable by the space-based LISA mission.


Item Type:Article
Additional Information:©2000 The American Physical Society Received 22 February 2000; published 28 November 2000 We thank James Anderson for helpful discussions, Theocharis Apostolatos for checking some details of our analysis, and Sam Finn for computing the numerical entries for E˙ and E˙infinity,2 in Tables I and II, on which many of our other numbers are based. This work was supported in part by NASA grant NAG5-6840, and in view of its potential applications to LIGO, also by NSF grant AST-9731698.
Group:TAPIR
Record Number:CaltechAUTHORS:ORIprd00
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:ORIprd00
Alternative URL:http://dx.doi.org/10.1103/PhysRevD.62.124022
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:2044
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:05 Mar 2006
Last Modified:26 Dec 2012 08:47

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