Axisymmetric MHD simulations of stellar magnetosphere/accretion disk interaction

Details Axisymmetric MHD simulations of stellar magnetosphere/accretion disk interaction Axisymmetric MHD simulations of stellar magnetosphere/accretion disk interaction

Feb 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..393..171m&link_type=abstract

The seventh astrophysical conference: Star formation, near and far. AIP Conference Proceedings, Volume 393, pp. 171-174 (1997).

Other

Accretion And Accretion Disks, Magnetic And Electric Fields, Polarization Of Starlight, Star Formation, Stellar Atmospheres, Radiative Transfer, Opacity And Line Formation

Scientific paper

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.

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