Detailed Information on Publication Record
2007
Extended orbital resonance model applied to QPOs observed in three near-extreme Kerr black hole candidate systems
STUCHLÍK, Zdeněk and Petr SLANÝBasic information
Original name
Extended orbital resonance model applied to QPOs observed in three near-extreme Kerr black hole candidate systems
Authors
Edition
Opava, Proceedings of RAGtime 8/9: Workshops on black holes and neutron stars, p. 257-265, 9 pp. 2007
Publisher
Slezská univerzita v Opavě, Filozoficko-přírodovědecká fakulta, Ústav fyziky
Other information
Language
English
Type of outcome
Stať ve sborníku
Field of Study
10308 Astronomy
Country of publisher
Czech Republic
Confidentiality degree
není předmětem státního či obchodního tajemství
Organization unit
Faculty of Philosophy and Science in Opava
ISBN
978-80-7248-419-5
Keywords in English
black hole physics, relativity, accretion discs, X-rays: individual:GRS 1915+105, XTE J1650-500, NGC 5408 X-1
Tags
International impact
Links
MSM4781305903, plan (intention).
Změněno: 21/12/2020 11:09, Mgr. Pavlína Jalůvková
Abstract
V originále
The "Extended Orbital Resonance Model," i.e., the idea of oscillations induced by the hump of the orbital velocity profile (related to the locally non-rotating frames - LNRF), which are proposed to excite the oscillations of Keplerian discs around near-extreme Kerr black holes with epicyclic frequencies, is used to estimate the mass and spin of three near-extreme Kerr black hole candidates GRS 1915+105, XTE J1650-500, and NGC 5408 X-1. The hump-induced oscillations are characterized by the so-called "humpy frequency," and a non-linear resonant coupling between these and epicyclic oscillations is expected. It it shown that the quasiperiodic variability (QPOs) observed in these sources can be matched with the proposals of the model, giving for the mass and spin of their black holes values consistent with the other observationally-established estimates.