Effects of Toroidal Magnetic Fields on the Thermal Instability of Thin Accretion Disks

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Abstract

The standard thin disk model predicts that when the accretion rate is moderately high, the disk is radiation–pressure-dominated and thermally unstable. However, observations indicate the opposite, namely the disk is quite stable. We present an explanation in this work by taking into account the role of the magnetic field which was ignored in the previous analysis.

Key words

Accretion accretion disks black hole physics instabilities 
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References

  1. Machida, M., Nakamura, K. E., Matsumoto, R. 2006, PASJ, 58, 193.ADSGoogle Scholar
  2. Oda, H., Machida, M., Nakamura, K. E., Matsumoto, R. 2010, Astrophys. J., 712, 639.ADSCrossRefGoogle Scholar

Copyright information

© Indian Academy of Sciences 2011

Authors and Affiliations

  • Sheng-Ming Zheng
    • 1
  • Feng Yuan
    • 2
  • Wei-Min Gu
    • 1
  • Ju-Fu Lu
    • 1
  1. 1.Department of Physics and Institute of Theoretical Physics and AstrophysicsXiamen UniversityXiamenChina.
  2. 2.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghaiChina.

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