SLANÝ, Petr, Zdeněk STUCHLÍK and Gabriel TÖRÖK. Humpy LNRF-velocity profiles in accretion discs orbiting rapidly rotating Kerr black holes. In Eleventh Marcel Grossmann Meeting on General Relativity Berlin. Singapore: World Scientific, 2008, 3 pp. ISBN 978-981-283-426-3. Available from: https://dx.doi.org/10.1142/9789812834300_0070.
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Basic information
Original name Humpy LNRF-velocity profiles in accretion discs orbiting rapidly rotating Kerr black holes
Name (in English) Humpy LNRF-velocity profiles in accretion discs orbiting rapidly rotating Kerr black holes
Authors SLANÝ, Petr, Zdeněk STUCHLÍK and Gabriel TÖRÖK.
Edition Singapore, Eleventh Marcel Grossmann Meeting on General Relativity Berlin, 3 pp. 2008.
Publisher World Scientific
Other information
Type of outcome Proceedings paper
Field of Study 10308 Astronomy
Confidentiality degree is not subject to a state or trade secret
Organization unit Institute of physics in Opava
ISBN 978-981-283-426-3
Doi http://dx.doi.org/10.1142/9789812834300_0070
Keywords in English Kerr black hole, accretion disks, locally non-rotating frame
Tags , MSM4781305903, sbornik
Tags International impact
Links MSM4781305903, plan (intention).
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 6/4/2021 13:28.
Abstract
Humpy LNRF-velocity profiles were found for both Keplerian thin discs and marginally stable thick discs orbiting nearly extreme Kerr black holes, being located just above the innermost stable circular orbit. The global character of this phenomenon is given by topology changes of equivelocity (von Zeipel) surfaces in marginally stable discs, as the standard cylindrical von Zeipel surfaces are transformed into toroidal surfaces existing around the circle corresponding to the local minimum of the equatorial humpy LNRF velocity profile.
Abstract (in English)
Humpy LNRF-velocity profiles were found for both Keplerian thin discs and marginally stable thick discs orbiting nearly extreme Kerr black holes, being located just above the innermost stable circular orbit. The global character of this phenomenon is given by topology changes of equivelocity (von Zeipel) surfaces in marginally stable discs, as the standard cylindrical von Zeipel surfaces are transformed into toroidal surfaces existing around the circle corresponding to the local minimum of the equatorial humpy LNRF velocity profile.
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