Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-30T23:12:57.129Z Has data issue: false hasContentIssue false
  • English
  • Français

Humpy LNRF-velocity profiles in accretion discs orbiting rapidly rotating Kerr black holes: a possible relation to epicyclic oscillations

Published online by Cambridge University Press:  01 August 2006

Zdeněk Stuchlík ,
Petr Slaný  and
Gabriel Török
Zdeněk Stuchlík
Affiliation:
Institute of Physics, Faculty of Philosophy and Science, Silesian University in Opava, Bezručovo nám. 13, CZ-746 01 Opava, Czech Republic email: [email protected], [email protected], [email protected]
Petr Slaný
Affiliation:
Institute of Physics, Faculty of Philosophy and Science, Silesian University in Opava, Bezručovo nám. 13, CZ-746 01 Opava, Czech Republic email: [email protected], [email protected], [email protected]
Gabriel Török
Affiliation:
Institute of Physics, Faculty of Philosophy and Science, Silesian University in Opava, Bezručovo nám. 13, CZ-746 01 Opava, Czech Republic email: [email protected], [email protected], [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Coordinate-independent definition of the characteristic, so-called “humpy” frequency related to the positive gradient of the orbital velocity in locally non-rotating frames around nearly extreme Kerr black holes is given and compared with the epicyclic and orbital frequencies for both Keplerian thin discs and limiting marginally stable thick discs.

Keywords

accretion disks – black hole physics – relativity – instabilities
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S238: Black Holes from Stars to Galaxies – Across the Range of Masses , August 2006 , pp. 459 - 460
Copyright
Copyright © International Astronomical Union 2007

References

Aliev, A. N. & Galtsov, D. V. 1981, General Relativity and Gravitation, 13, 899CrossRefGoogle Scholar
Aschenbach, B. 2004, A&A, 425, 1075Google Scholar
Bardeen, J. M., Press, W. H. & Teukolsky, S. A. 1972, ApJ, 178, 347CrossRefGoogle Scholar
Nowak, M. A. & Lehr, D. E. 1998, in: Abramowicz, M. A., Björnsson, G., and Pringle, J.E. (eds.), Theory of Black Hole Accretion Disks, (Cambridge: Cambridge University Press), p. 233Google Scholar
Stuchlík, Z., Slaný, P., Török, G. & Abramowicz, M. A. 2005, Phys. Rev. D, 71, 024037CrossRefGoogle Scholar