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Axisymmetric MHD Simulations of Stellar Magnetosphere/Accretion Disk Interaction
Published online by Cambridge University Press: 12 April 2016
Abstract
The evolution of the inner disk region of magnetized accreting systems is studied by means of numerical simulations. Two different initial magnetic field topologies are studied: a pure dipole field which threads the disk continuously and a dipole field excluded from the disk by surface currents. When present, the Balbus-Hawley (BH) instability provides efficient angular momentum transport, and accretion is equatorial. Otherwise, magnetic coupling between the disk and star surfaces as the dominant mechanism for transport and nonequatorial accretion results. In all of the simulations, low density, collimated disk-driven winds lead to mass loss.
- Type
- Part 15. Poster Papers
- Information
- International Astronomical Union Colloquium , Volume 163: Accretion Phenomena and Related Outflows , 1997 , pp. 768 - 769
- Copyright
- Copyright © Astronomical Society of the Pacific 1997