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Interaction Of A Stellar Magnetic Field With A Turbulent Accretion Disk

  • Anne Bardou (a1) and Jean Heyvaerts (a1)

Abstract

Magnetized objects surrounded by a turbulent and keplerian accretion disk are considered. In such systems, magnetic field lines are embedded into the disk. The magnetic field of the central object is assumed to be dipolar in the absence of the accretion disk. In the presence of a turbulent accretion disk, it is shown that the interaction with the disk stretches magnetic field lines along the disk and that most of the non-magnetospheric magnetic flux is expelled outside the disk.

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References

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Aly, J.J. 1984, ApJ, 283, 349
Aly, J.J. 1991, ApJ, 375, L61
Bardou, A., Heyvaerts, J. 1996, A&A, 307, 1009
Lynden-Bell, D., Boily, C. 1994, MNRAS, 267, 146

Interaction Of A Stellar Magnetic Field With A Turbulent Accretion Disk

  • Anne Bardou (a1) and Jean Heyvaerts (a1)

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