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 | Size | Format | |
|---|---|---|---|---|
| 1983 J Phys-A V16 p2077.pdf Restricted Access | Restricted Access | 454.39 kB | Adobe PDF | View/Open Request a copy |
Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.