Numerical Simulations of Pulsationally Unstable Accretion Disks Around Supermassive Black Holes View Full Text


Ontology type: schema:Chapter     


Chapter Info

DATE

1993

AUTHORS

F. Honma , R. Matsumoto , S. Kato

ABSTRACT

The innermost region of slim accretion disks with standard a 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 (MBH/M⊙) S can be excited near the inner edge of the disks, where MBH 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. More... »

PAGES

365-367

References to SciGraph publications

Book

TITLE

Nonlinear Phenomena in Stellar Variability

ISBN

978-94-010-4462-2
978-94-011-1062-4

Author Affiliations

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/978-94-011-1062-4_60

DOI

http://dx.doi.org/10.1007/978-94-011-1062-4_60

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1014129214


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