Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-27T08:06:39.471Z Has data issue: false hasContentIssue false
  • English
  • Français

Kinematic Dynamo in Turbulent Circumstellar Disks

Published online by Cambridge University Press:  19 July 2016

T. Stepinski
T. Stepinski*
Affiliation:
Lunar and Planetary Institute 3600 Bay Area Blvd., Houston, TX 77058

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Many circumstellar disks associated with objects ranging from protoplanetary nebulae to accretion disks around compact stars allow for the generation of magnetic fields by an αω dynamo. We have applied kinematic dynamo formalism to geometrically thin accretion disks. We calculate, in the framework of an adiabatic approximation, the normal mode solutions for dynamos operating in disks around compact stars. We then describe the criteria for a viable dynamo in protoplanetary nebulae, and discuss the particular features that make accretion disk dynamos different from planetary, stellar, and galactic dynamos.

Keywords

accretion disksprotoplanetary disksαω dynamos
Type
5. Magnetic Field Generation in Accretion Disks
Information
Symposium - International Astronomical Union , Volume 157: The Cosmic Dynamo , 1993 , pp. 203 - 207
Copyright
Copyright © Kluwer 1993 

References

Elstner, D., Meinel, R., & Rüdiger, G.: 1990, Geophys. Astrophys. Fluid Dynamics 50, 85.Google Scholar
Ruzmaikin, A.A., Sokoloff, D.D. & Shukurov, A.M.: 1985, Astron. Astrophys. 148, 335.Google Scholar
Ruzmaikin, A.A., Shukurov, A.M. & Sokoloff, D.D.: 1988, Magnetic Fields of Galaxies , Kluwer Academic Publishers: Dordrecht, 163.Google Scholar
Shakura, N.J. & Sunyaev, R.A.: 1973, Astron. Astrophys. 24, 337.Google Scholar
Shakura, N.J., Sunyaev, R.A. & Zilitinkevich, S.S.: 1978, Astron. Astrophys. 62, 179.Google Scholar
Stepinski, T.F. & Levy, E.H.: 1988, Ap. J. 331, 416.Google Scholar
Stepinski, T.F. & Levy, E.H.: 1991, Ap. J. 379, 343.Google Scholar
Stepinski, T.F.: 1992, Icarus 97, 130.Google Scholar