Interaction of a stellar magnetic field with a turbulent accretion disk.

Details Interaction of a stellar magnetic field with a turbulent accretion disk. Interaction of a stellar magnetic field with a turbulent accretion disk.

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26a...307.1009b&link_type=abstract

Astronomy and Astrophysics, v.307, p.1009-1022

Astronomy and Astrophysics

Astrophysics

46

Accretion Disks, Stars: Magnetic Fields, Stars: Neutron, Mhd

Scientific paper

This paper studies systems where a central magnetized object is surrounded by a turbulent accretion disk. In such systems, magnetic field lines are embedded in the disk. The purpose here is to find a stationary magnetic configuration in the corona. The magnetic field of the central star is considered to be dipolar in the absence of the accretion disk. In the presence of a thin, turbulent and keplerian accretion disk, the configuration is not dipolar anymore. We look for a stationary solution. We show that the interaction of the disk with the magnetic field stretches magnetic field lines along the disk and that most of the non-magnetospheric magnetic flux is expelled outside the disk. A few field lines might open.

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