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Time-dependent, optically thick accretion onto a black holeA fully relativistic hydrodynamics code which incorporates diffusive radiation transport is used to study time-dependent, spherically symmetric, optically thick accretion onto a black hole. It is found that matter free-falls into the hole regardless of whether the diffusion time scale is longer or shorter than the dynamical time. Nonadiabatic heating due to magnetic field reconnection is included. The internal energy thus generated affects the flow in a purely relativistic way, again ensuring free-fall collapse of the inflowing matter. Any matter enveloping a black hole will thus be swallowed on a dynamical time scale with relatively small net release of energy. The inclusion of angular momentum will not necessarily affect this conclusion.
Document ID
19800066223
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Gilden, D. L.
(Texas, University Austin, Tex., United States)
Wheeler, J. C.
(Texas Univ. Austin, TX, United States)
Date Acquired
August 10, 2013
Publication Date
July 15, 1980
Publication Information
Publication: Astrophysical Journal
Subject Category
Astrophysics
Report/Patent Number
PB81-138646
Accession Number
80A50393
Funding Number(s)
CONTRACT_GRANT: NSG-7232
Distribution Limits
Public
Copyright
Other

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