Magnetic fields and accretion discs around static black holes

Details Magnetic fields and accretion discs around static black holes Magnetic fields and accretion discs around static black holes

Aug 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jpha...15.2645d&link_type=abstract

Journal of Physics A - Mathematical and General, vol. 15, Aug. 1982, p. 2645-2653.

Astronomy and Astrophysics

Astronomy

10

Black Holes (Astronomy), Magnetic Effects, Stellar Magnetic Fields, Stellar Mass Accretion, Angular Momentum, Constraints, Energy Conversion Efficiency, Field Strength, Potential Theory

Scientific paper

Some aspects of accretion onto static black holes immersed in a uniform magnetic field are investigated. The Ernst metric is employed to find the 'Keplerian' angular momentum distribution and the efficiency of mass-to-energy conversion for a plasma and for test particles. Under almost all physically reasonable conditions for hydrodynamic accretion the effect of the magnetic field is small. However, for test particles the effect can be very important and the efficiency can approach unity.

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