Skip to main content
SpringerLink
Log in

Numerical simulations of pulsationally unstable accretion disks around supermassive black holes

  • III. Models
  • Published:
Astrophysics and Space Science Aims and scope Submit manuscript

Abstract

The innermost region of slim accretion disks with standard α viscosity is unstable against axisymmetric radial inertial acoustic perturbations under certain conditions. Numerical simulations are performed in order to demonstrate behaviors of such unstable disks. It is shown that oscillations with the period of ∼ 10−3 (M BH/M ⊙) s can be excited near the inner edge of the disks, whereM BH is the mass of the central object. This kind of unstable disks is a possible origin of the periodic X-ray time variabilities with period of ∼ 104s observed in a Seyfert galaxy NGC 6814.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Honma, F., Matsumoto, R., and Kato, S: 1992, submitted toPublications of the ASJ

  • Matsumoto, R., Kato, S., and Honma, F.: 1988, inPhysics of Neutron Stars and Black Holes, ed. Y. Tanaka (Universal Academy Press, Tokyo, Japan), p. 155.

    Google Scholar 

  • Matsumoto, R., Kato, S., and Honma, F.: 1989, inTheory of Accretion Disks, eds. F. Meyer, W. J. Duschl, J. Frank, and E. Meyer-Hofmeister (Kluwer Academic Publishers, Dordrecht, Holland), p. 167.

    Google Scholar 

  • Mittaz, J. P. D., and Branduradi-Raymont, G.: 1989,Monthly Notices of the RAS,238, 1029.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Astronomy, Faculty of Science, Kyoto University, Sakyo-ku, 606-01, Kyoto, Japan

    F. Honma

  2. College of Arts and Sciences, Chiba University, Yayoi-cho, 260, Chiba, Japan

    R. Matsumoto

  3. Department of Astronomy, Faculty of Science, Kyoto University, Sakyo-ku, 606-01, Kyoto, Japan

    S. Kato

Authors
  1. F. Honma
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. R. Matsumoto
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. S. Kato
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Honma, F., Matsumoto, R. & Kato, S. Numerical simulations of pulsationally unstable accretion disks around supermassive black holes. Astrophys Space Sci 210, 365–367 (1993). https://doi.org/10.1007/BF00657928

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00657928

Keywords

Search

Navigation