D 2007

Extended orbital resonance model with hump-induced oscillations

SLANÝ, Petr, Gabriel TÖRÖK and Zdeněk STUCHLÍK

Basic information

Original name

Extended orbital resonance model with hump-induced oscillations

Authors

Edition

Opava, Proceedings of RAGtime 8/9: Workshops on black holes and neutron stars, p. 449-467, 18 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, accretion discs, relativity

Tags

Tags

International impact

Links

GA202/06/0041, research and development project. MSM4781305903, plan (intention).
Změněno: 3/12/2020 14:43, Mgr. Pavlína Jalůvková

Abstract

V originále

Change of sign of the LNRF-velocity gradient has been found for accretion discs orbiting rapidly rotating Kerr black holes with spin a > 0:9953 for Keplerian discs and a > 0:99979 for marginally stable thick discs. Such a humpy" LNRF-velocity profiles occur just above the marginally stable circular geodesic and could be related to oscillations of accretion discs. The frequency of such "hump"-induced oscillations can be identified with the maximal rate of change of the orbital velocity within the "humpy" profile.