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Formation of accretion disk / frame drag

  1. Dec 16, 2012 #1
    came across the concept of Frame dragging.
    i cannot find if this phenomena also aids in addition to the conversation of angular momentum the formation of an accretion disk around neutron stars/black holes.
    cheers
     
  2. jcsd
  3. Dec 16, 2012 #2

    Bobbywhy

    User Avatar
    Gold Member

    It seems clear that yes, Frame dragging does contribute to disk formation around supermassive black holes and active galactic nuclei. Here are some references:

    THE ASTROPHYSICAL JOURNAL, 475:57 64, 1997 January 20
    Line Emission from an Accretion Disk around a Rotating Black Hole: Toward a Measurement of Frame Dragging
    BENJAMIN C. BROMLEY, 1 KAIYOU CHEN, AND WARNER A. MILLER
    Theoretical Astrophysics Group, T-6, MS B288, Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545
    Received 1995 December 15; accepted 1996 August 8
    Excerpt from the “Discussion” section:
    “For these reasons, we feel justified in choosing diagnostics of a line-emitting accretion disk as a probe for frame-dragging effects in the nuclei of active galaxies. As noted before (Laor 1991), perhaps the best hope of detecting the frame-dragging effect is to spot a stable Keplerian accretion disk at radii below the limit of 6Rg imposed in a Schwarzschild metric.”

    (Note: This paper was written and published before Gravity Probe B positive results were announced.)
    http://iopscience.iop.org/0004-637X/475/1/57/fulltext/33793.text.html
    +++++++++++++++
    See section five:
    “Frame-dragging: occurs generally around rotating objects. It's just that the exact
    Kerr form only applies to black holes.”
    www.astro.umd.edu/~miller/teaching/astr688m/lecture11.pdf

    +++++++++++++++++++
    Disc Accretion in Active Galactic Nuclei
    Andrew King
    Theoretical Astrophysics Group, University of Leicester, Leicester LE1 7RH, UK
    www.vlti.org/events/assets/3/documents/king.pdf [Broken]

    +++++++++++++
    Four other possiblilities:

    arXiv:1208.0728
    Title: The effect of frame dragging on the iron K alpha line in X-ray binaries
    Authors:Adam Ingram, Chris Done
    ++++++++++++++++
    arXiv:0705.1796
    Title: Iron line profiles and self-shadowing from relativistic thick accretion discs
    Authors:Sheng-Miao Wu, Ting-Gui Wang
    ++++++++++++
    arXiv:astro-ph/0401345
    Title: Gravitating discs around black holes
    Authors:V. Karas, J.-M. Hure, O. Semerak
    +++++++++++++++++++++
    arXiv:astro-ph/9901223
    Title: Radiation force on relativistic jets in active galactic nuclei
    Authors:Qinghuan Luo, R. J. Protheroe
     
    Last edited by a moderator: May 6, 2017
  4. Dec 16, 2012 #3
    thanks for the links...
     
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