The stability of turbulent accretion discs with magnetically influenced winds

Details The stability of turbulent accretion discs with magnetically influenced winds The stability of turbulent accretion discs with magnetically influenced winds

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001mnras.323..211c&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 323, Issue 1, pp. 211-222.

Astronomy and Astrophysics

Astronomy

8

Accretion, Accretion Discs, Instabilities, Magnetic Fields, Turbulence

Scientific paper

The stability of turbulent accretion discs is considered, in which a magnetically influenced wind plays a major role in driving the inflow. The magnetic field is generated by a dynamo operating in the disc, involving radial shear and turbulence. The steady angular momentum balance is found to be linearly stable for a range of radial boundary conditions, and an expression is derived for the adjustment time-scale as a function of the equilibrium ratio of the magnetic and viscous disc torques.

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