General relativistic versus Newtonian: A universality in spherically symmetric radiation hydrodynamics for quasistatic transonic accretion flows

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dc.contributor.authorMalec, Edward
dc.contributor.authorRembiasz, Tomasz
dc.date.accessioned2017-08-29T09:04:01Z
dc.date.available2017-08-29T09:04:01Z
dc.date.issued2010
dc.description.abstractWe compare Newtonian and general relativistic descriptions of the stationary accretion of self-gravitating fluids onto compact bodies. Spherical symmetry and thin gas approximation are assumed. Luminosity depends, among other factors, on the temperature and the contribution of gas to the total mass, in both-general relativistic (L-GR) and Newtonian (L-N)-models. We discover a remarkable universal behavior for transonic flows: the ratio of respective luminosities L-GR/L-N is independent of the fractional mass of the gas and depends on asymptotic temperature. It is close to 1 in the regime of low asymptotic temperatures and can grow several times at high temperatures. These conclusions are valid for a wide range of polytropic equations of state.en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid124005
dc.identifier.citationMalec, E. and Rembiasz, T. (2010) 'General relativistic versus Newtonian: A universality in spherically symmetric radiation hydrodynamics for quasistatic transonic accretion flows', Physical Review D, 82(12), 124005 (9pp). doi: 10.1103/PhysRevD.82.124005en
dc.identifier.doi10.1103/PhysRevD.82.124005
dc.identifier.issn1550-7998
dc.identifier.issued12
dc.identifier.journaltitlePhysical Review Den
dc.identifier.urihttps://hdl.handle.net/10468/4567
dc.identifier.volume82
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.relation.urihttps://journals.aps.org/prd/abstract/10.1103/PhysRevD.82.124005
dc.rights© 2010, American Physical Societyen
dc.subjectGeneral relativisticen
dc.subjectNewtonianen
dc.subjectAsymptotic temperatureen
dc.subjectSpherical symmetryen
dc.titleGeneral relativistic versus Newtonian: A universality in spherically symmetric radiation hydrodynamics for quasistatic transonic accretion flowsen
dc.typeArticle (peer-reviewed)en
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