Scalar field self-force effects on orbits about a Schwarzschild black hole

Diaz-Rivera, Luz, Messaritaki, Eirini ORCID: https://orcid.org/0000-0002-9917-4160, Whiting, Bernard and Detweiler, Steven 2004. Scalar field self-force effects on orbits about a Schwarzschild black hole. Physical Review D 70 (12) , 124018. 10.1103/PhysRevD.70.124018

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Abstract

For a particle of mass μ and scalar charge q, we compute the effects of the scalar field self-force upon circular orbits, upon slightly eccentric orbits and upon the innermost stable circular orbit (ISCO) of a Schwarzschild black hole of mass m. For circular orbits the self-force is outward and causes the angular frequency at a given radius to decrease. For slightly eccentric orbits the self-force decreases the rate of the precession of the orbit. The effect of the self-force moves the radius of the innermost stable circular orbit inward by 0.122 701×q2/μ, and it increases the angular frequency of the ISCO by the fraction 0.029 165 7×q2/μm.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Research Institutes & Centres > Cardiff University Brain Research Imaging Centre (CUBRIC) Schools > Medicine
Subjects:	Q Science > QC Physics
Publisher:	American Physical Society
ISSN:	1550-7998
Last Modified:	01 Nov 2022 09:23
URI:	https://orca.cardiff.ac.uk/id/eprint/87756

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