Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...270..265v&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 270, no. 1-2, p. 265-274.
Astronomy and Astrophysics
Astronomy
5
Accretion Disks, Black Holes (Astronomy), Magnetic Field Reconnection, Stellar Flares, Electromotive Forces, Force-Free Magnetic Fields
Scientific paper
The present treatment of magnetic flaring interactions between a black hole and an ionized accretion disk assumes that magnetic fields created in the disk, and extending into a force-free corona, will be transported onto the black hole time-horizon by the accreting plasma; magnetic links between disk and horizon would then occur. An equilibrium condition on the field structure of the connection is found not to be generally satisfied. It is concluded that these magnetic connections will release their free energy during flares, and that the form this can take, as a sequence of magnetic explosions, can be a measurable fraction of disk luminosity for stellar-mass black hole candidates.
Kuijpers Jan
van Oss Roeland F.
Volwerk Martin
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