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Article: Accretion processes in magnetically and tidally perturbed Schwarzschild black holes

TitleAccretion processes in magnetically and tidally perturbed Schwarzschild black holes
Authors
Issue Date2011
PublisherAmerican Physical Society. The Journal's web site is located at http://prd.aps.org
Citation
Physical Review D (Particles, Fields, Gravitation and Cosmology), 2011, v. 84 n. 2, article no. 024018 How to Cite?
AbstractWe study the accretion process in the region of the Preston-Poisson space-time describing a Schwarzschild black hole perturbed by an asymptotically uniform magnetic field and axisymmetric tidal structures. We find that the accretion disk shrinks and the marginally stable orbit shifts toward the black hole with the perturbation. The radiation intensity of the accretion disk increases, while the radius where radiation is maximal remains unchanged. The spectrum is blue-shifted. Finally, the conversion efficiency of accreting mass into radiation is decreased by both the magnetic and the tidal perturbations. © 2011 American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/145571
ISSN
2014 Impact Factor: 4.643
2015 SCImago Journal Rankings: 1.882
ISI Accession Number ID
Funding AgencyGrant Number
COST ActionMP0905
OTKANI68228
Funding Information:

We thank Sergei Winitzki for interactions in the early stages of this work. L. A. G. is grateful to Tiberiu Harko for hospitality during his visit at the University of Hong Kong. L. A . G. was partially supported by COST Action MP0905 "Black Holes in a Violent Universe." M. V. was supported by OTKA Grant No. NI68228.

 

DC FieldValueLanguage
dc.contributor.authorKovacs, Zen_US
dc.contributor.authorGergely, LAen_US
dc.contributor.authorVasuth, Men_US
dc.date.accessioned2012-02-28T01:55:37Z-
dc.date.available2012-02-28T01:55:37Z-
dc.date.issued2011en_US
dc.identifier.citationPhysical Review D (Particles, Fields, Gravitation and Cosmology), 2011, v. 84 n. 2, article no. 024018en_US
dc.identifier.issn1550-7998-
dc.identifier.urihttp://hdl.handle.net/10722/145571-
dc.description.abstractWe study the accretion process in the region of the Preston-Poisson space-time describing a Schwarzschild black hole perturbed by an asymptotically uniform magnetic field and axisymmetric tidal structures. We find that the accretion disk shrinks and the marginally stable orbit shifts toward the black hole with the perturbation. The radiation intensity of the accretion disk increases, while the radius where radiation is maximal remains unchanged. The spectrum is blue-shifted. Finally, the conversion efficiency of accreting mass into radiation is decreased by both the magnetic and the tidal perturbations. © 2011 American Physical Society.-
dc.languageengen_US
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prd.aps.orgen_US
dc.relation.ispartofPhysical Review D (Particles, Fields, Gravitation and Cosmology)en_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong Licenseen_US
dc.titleAccretion processes in magnetically and tidally perturbed Schwarzschild black holesen_US
dc.typeArticleen_US
dc.identifier.emailKovacs, Z: zkovacs@hku.hken_US
dc.identifier.emailGergely, LA: gergely@physx.u-szeged.hu-
dc.identifier.emailVasuth, M: vasuth@rmki.kfki.hu-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevD.84.024018-
dc.identifier.scopuseid_2-s2.0-80051694043-
dc.identifier.hkuros198638en_US
dc.identifier.volume84en_US
dc.identifier.issue2, article no. 024018-
dc.identifier.isiWOS:000292693100005-
dc.publisher.placeUnited States-

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