DSpace
 

RRI Digital Repository >
04. Astronomy and Astrophysics >
Research Papers (A&A) >

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2382

Title: Magnetic fields and accretion discs around Kerr black holes
Authors: Wiita, P.J.
Vishveshwara, C.V.
Siah, M.J.
Iyer, B.R.
Issue Date: 21-Jun-1983
Publisher: IOP Publishing Ltd.
Citation: Journal of Physics, 1983, Vol.16, p2077-2086
Abstract: The authors consider some aspects of accretion onto a rotating black hole immersed in a uniform magnetic field aligned with the angular momentum axis of the black hole. They specialise to motion in the equatorial plane, and calculate the 'Keplerian' angular momentum distribution and the marginally stable orbits. Using an unorthodox definition of the binding energy made necessary by an unphysical infinity induced by the assumed constancy of the magnetic field, they can calculate the marginally bound orbits and the efficiency of mass-to-energy conversion. When hydrodynamic accretion is considered the effects of the magnetic field are invariably quite small. For test particles, the magnetic field can significantly increase the efficiency, but this increase lessens as the specific angular momentum of the black hole rises.
Description: Restricted Access.
URI: http://hdl.handle.net/2289/2382
ISSN: 1751-8113
1751-8121
Alternative Location: http://dx.doi.org/10.1088/0305-4470/16/9/029
Copyright: 1983 IOP Publishing Ltd.
Appears in Collections:Research Papers (A&A)

Files in This Item:

File Description SizeFormat
1983 J Phys-A V16 p2077.pdfRestricted Access454.39 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

    RRI Library DSpace