Simulations of Jets Driven by Black Hole Rotation

The origin of jets emitted from black holes is not well understood; however, there are two possible energy sources: the accretion disk or the rotating black hole. Magnetohydrodynamic simulations show a well-defined jet that extracts energy from a black hole. If plasma near the black hole is threaded...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 2004-08, Vol.305 (5686), p.978-980
Main Authors: Semenov, Vladimir, Dyadechkin, Sergey, Punsly, Brian
Format: Article
Language:English
Subjects:
Angular velocity
Astrophysics
Black holes
Black holes (Astronomy)
Cosmic rays
Energy
Ergosphere
Gravity
Gravity (Force)
Magnetic fields
Magnetic flux
Motion
Particle energy
Physics
Properties
Quasars
Relativistic jets
Scientific Concepts
Simulation
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Summary:The origin of jets emitted from black holes is not well understood; however, there are two possible energy sources: the accretion disk or the rotating black hole. Magnetohydrodynamic simulations show a well-defined jet that extracts energy from a black hole. If plasma near the black hole is threaded by large-scale magnetic flux, it will rotate with respect to asymptotic infinity, creating large magnetic stresses. These stresses are released as a relativistic jet at the expense of black hole rotational energy. The physics of the jet initiation in the simulations is described by the theory of black hole gravitohydromagnetics.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.1100638