A Possible Mechanism for Hot Corona Formation Around Black Holes

  • Su Min Tang
  • Shuang Nan Zhang
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 298)


We consider a possible mechanism for hot corona formation in accretion disks around black holes. In the inner region of an accretion disk around a black hole, the orbits of particles depart from their Keplerian orbits because of General Relativity effects. The ellipticity of the orbit is very high and the orbital precession is considerable. Therefore violent collisions between the particles will occur in the disk and some of these particles will then escape from the disk to form a hot corona around the black hole. In this paper we investigate this effect and estimate properties of the corona formed through this mechanism.


corona General Relativity Schwarzschild Radius 


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  1. Zhang, S.N., Three-Layered Atmospheric Structure in Accretion Disks Around Stellar-Mass Black Holes, 2000, Science, 287, 1239ADSCrossRefGoogle Scholar
  2. Juhan Frank, Andrew King, Derek Raine. Accretion Power in Astrophysics, 1992, Cambridge: Cambridge University Press.Google Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2003

Authors and Affiliations

  • Su Min Tang
    • 1
  • Shuang Nan Zhang
    • 1
    • 2
    • 3
    • 4
  1. 1.Physics Department and Center for AstrophysicsTsinghua UniversityBeijingP.R. China
  2. 2.Physics DepartmentUniversity of Alabama in HuntsvilleHuntsvilleUSA
  3. 3.Space Science LaboratoryNASA Marshall Space Flight Center, SD50HuntsvilleUSA
  4. 4.Institute of High Energy PhysicsChinese Academy of SciencesBeijingChina

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