2014
Aschenbach Effect for Brany Kerr Black Holes and Naked Singularities
BLASCHKE, Martin; Petr SLANÝ and Zdeněk STUCHLÍKBasic information
Original name
Aschenbach Effect for Brany Kerr Black Holes and Naked Singularities
Authors
Edition
Opava, Proceedings of RAGtime 10-13: Workshops on black holes and neutron stars, p. 175-185, 11 pp. 2014
Publisher
Slezská univerzita v Opavě, Filozoficko-přírodovědecká fakulta, Ústav fyziky
Other information
Language
English
Type of outcome
Proceedings paper
Field of Study
10308 Astronomy
Confidentiality degree
is not subject to a state or trade secret
Organization unit
Faculty of Philosophy and Science in Opava
ISBN
978-80-7510-124-2
ISSN
Keywords in English
Aschenbach effect; Randall Sundrum; Brane-world
Tags
International impact
Links
EE2.3.20.0071, research and development project. GB14-37086G, research and development project.
Changed: 26/1/2021 17:24, Mgr. Pavlína Jalůvková
Abstract
In the original language
We study the non-monotonic Keplerian velocity profiles related to locally nonrotating frames (LNRF) in the field of near-extreme braneworld Kerr black holes and naked singularities in which the non-local gravitational effects of the bulk are representedby a braneworld tidal charge b and the 4D geometry of the spacetime structure is governed by the Kerr?Newman geometry. We show that positive tidal charge has a tendency to restrict the values of the black hole dimensionless spin a admitting existence ofthe non-monotonic Keplerian LNRF-velocity profiles; the non-monotonic profiles exist in the black hole spacetimes with tidal charge smaller than b D 0:41005 (and spin larger than a D 0:76808). With decreasing value of the tidal charge (which need not beonly positive), both the region of spin allowing the non-monotonicity in the LNRF-velocity profile around braneworld Kerr black hole and the velocity difference in the minimum-maximum parts of the velocity profile increase implying growin