Halaman Tajuk. Jadual Kandungan.
Kandungan Introduction. Relativistic Plasma Physics. Vacuum Electrodynamics. Near the Event Horizon. Magnetically Dominated TimeStationary.
Ergosphere Driven Winds. Ergospheric Disk Dynamos.
Black Hole Accretion Disks
Winds from Event Horizon Magnetospheres. Applications to the Theory. Hak cipta. Solar-wind capture x-ray binaries prob- Electronic address: jmckinney cfa.
The evolved field geometry is relevant to most black hole systems and cor- responds to a turbulent disk field with a self-consistently gen- erated large-scale flux threading the black hole. This F IG. Open points represent negative efficiencies. The sparse spin study of Krolik et al. No- 3. Their fit coefficient of 6.
Black Hole Gravitohydromagnetics - Brian Punsly - Google книги
Force-free numerical of the Faraday, determines the black hole power output models agree with the above BZ model Komissarov They suggested that efficiencies of order unity or higher could be achieved by extracting energy from the hole. Thus, surprisingly, the magnetic field and disk thickness play little role in modifying the disk efficiency.
Field types 4 and 5 correspond to surface reconnections. Type 4 geometries are temporary and type 5 are common. Thus, reconnection efficiently removes large loops that tie the disk to itself. We find that F IG.
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Types 1,2,3,5,6 dynamically im- portant. Type 4 transient. Types 7,8 not dynamically stable.
Thin disks likely have more stable equation 1 due to the presence of two ambiguities P0 and Br , surfaces that might allow for a stable wind. We suggest using Field type 7 corresponds to coronal outflows or the power output as given by equations 2 and 3.
go site Also, the accretion of and counter to the results of Koide et al. Koide et al. Future studies should focus on the short a time. Accretion of a net ver- use of Boyer-Lindquist coordinates. However, there is a con- tical field has been studied with nonrelativistic MHD simula- vectively and magnetically unstable, self-consistently mass- tions Igumenshchev et al.
This gives a per polar axis a significant amount of energy or angular momentum.
Notice that the geometries may be more important for thin disks. Since the magnetic field confines these processes are likely both important. However, real- the disk matter away from the polar region, the rest-mass flux istic models suggest that Poynting flux dominates neutrino- there is arbitrarily low. The large BZ flux to low rest-mass annihilation energy flux McKinney a,b. Similar esti- flux ratio can translate into an arbitrarily fast jet. The mass- mates can be made for AGN and x-ray binaries. Reconnection efficiently the disk see also, e.
Krolik et al.
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