Detailed Information on Publication Record
2011
Non-monotonic Keplerian velocity profiles around near-extreme braneworld Kerr black holes
BLASCHKE, Martin, Petr SLANÝ and Zdeněk STUCHLÍKBasic information
Original name
Non-monotonic Keplerian velocity profiles around near-extreme braneworld Kerr black holes
Authors
Edition
Classical and Quantum Gravity, GB - Spojené království Velké Británie a, 2011, 0264-9381
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10308 Astronomy
Confidentiality degree
není předmětem státního či obchodního tajemství
Organization unit
Faculty of Philosophy and Science in Opava
UT WoS
000294011800003
Keywords in English
QUASI-PERIODIC OSCILLATIONS, ORBITAL RESONANCE MODEL, HIGH-FREQUENCY QPOS, SGR-A-ASTERISK, NAKED SINGULARITY, GALAXY MCG-6-30-15, SPIN, MASS, ACCRETION, FIELD
Tags
Tags
International impact, Reviewed
Links
LC06014, research and development project. MSM4781305903, plan (intention).
Změněno: 13/1/2021 11:38, Mgr. Pavlína Jalůvková
Abstract
V originále
We study the non-monotonic Keplerian velocity profiles related to locally non-rotating 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 the existence of the non-monotonic Keplerian LNRF-velocity profiles; the non-monotonic profiles exist in the black hole spacetimes with tidal charge smaller than b = 0.410 05 (and spin larger than a = 0.768 08). With decreasing value of the tidal charge (which neednot be only 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