Adiabatic evolution due to the conservative scalar self-force during orbital resonances

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dc.contributor.authorNasipak, Zachary
dc.date.accessioned2024-04-08T15:23:23Z
dc.date.available2024-04-08T15:23:23Z
dc.date.issued2022-09-23
dc.description.abstractWe calculate the scalar self-force experienced by a scalar point-charge orbiting a Kerr black hole along rθ-resonant geodesics. We use the self-force to calculate the averaged rate of change of the charge’s orbital energy hE_i, angular momentum hL_ zi, and Carter constant hQ_ i, which together capture the leading-order adiabatic, secular evolution of the point-charge. Away from resonances, only the dissipative (time antisymmetric) components of the self-force contribute to hE_i, hL_ zi, and hQ_ i. We demonstrate, using a new numerical code, that during rθ resonances conservative (time symmetric) scalar perturbations also contribute to hQ_ i and, thus, help drive the adiabatic evolution of the orbit. Furthermore, we observe that the relative impact of these conservative contributions to hQ_ i is particularly strong for eccentric 2∶3 resonances. These results provide the first conclusive numerical evidence that conservative scalar perturbations of Kerr spacetime are nonintegrable during rθ resonances.
dc.description.sponsorshipThis research was supported by an appointment to the NASA Postdoctoral Program at the NASA Goddard Space Flight Center, administered by Oak Ridge Associated Universities under contract with NASA. The author also thanks Charles R. Evans and Christopher Munna for useful discussions and their helpful feedback.
dc.description.urihttps://journals.aps.org/prd/abstract/10.1103/PhysRevD.106.064042
dc.format.extent31 pages
dc.genrejournal articles
dc.identifierdoi:10.13016/m2zx53-ltfl
dc.identifier.citationNasipak, Zachary. “Adiabatic Evolution Due to the Conservative Scalar Self-Force during Orbital Resonances.” Physical Review D 106, no. 6 (September 23, 2022): 064042. https://doi.org/10.1103/PhysRevD.106.064042.
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.106.064042
dc.identifier.urihttp://hdl.handle.net/11603/32923
dc.language.isoen_US
dc.publisherAPS
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
dc.rightsPublic Domain Mark 1.0
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/
dc.titleAdiabatic evolution due to the conservative scalar self-force during orbital resonances
dc.typeText
dcterms.creatorhttps://orcid.org/0000-0002-5109-9704

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