Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-30T04:52:46.836Z Has data issue: false hasContentIssue false

Numerical Models of Magnetic Disk Accretion in Star Forming Regions

Published online by Cambridge University Press:  19 July 2016

Michael L. Norman
Affiliation:
Department of Astronomy, University of Illinois and National Center for Supercomputing Applications Urbana, Illinois 61801
James M. Stone
Affiliation:
Department of Astronomy, University of Illinois and National Center for Supercomputing Applications Urbana, Illinois 61801

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.

We report on preliminary numerical MHD simulations of magnetic disk accretion surrounding a compact protostar in which the disk and the hydromagnetic wind interact self-consistently. We show that an outflow is indeed produced, but that its properties are sensitive to the assumed initial poloidal magnetic field structure. In particular, we reconcile the apparently disparate models of Pudritz and Norman (1983,1986) and Uchida and Shibata (1985) concerning the mass ejection mechanism.

Type
6. Magnetic Fields in Molecular Clouds, Dark Globules and in the Pre-Stellar and Circumstellar Environment
Copyright
Copyright © Kluwer 1990 

References

Brio, M. and Wu, C. 1988, J. Comp. Phys. 75, 400.Google Scholar
Blandford, R. and Payne, D. 1982, M.N.R.A.S. , 199, 883.Google Scholar
Evans, C. and Hawley, J. 1988, Astrophys. J. , 332, 659.Google Scholar
Lada, C.J. 1985, Ann. Rev. Astron. Astrophys. , 23, 267.Google Scholar
Low, B.C. 1984, Astrophys. J. , 281, 392.Google Scholar
Mouschovias, T. 1987, in Galactic and Extragalactic Star Formation, ed. Pudritz, R., (Kluwer Dordrecht), 400.Google Scholar
Norman, M.L. and Winkler, K.-H.A. 1986, in Astrophysicai Radiation Hydrodynamics , eds. Winkler, K.-H. & Norman, M.L., (Reidel: Dordrecht), 187.Google Scholar
Pudritz, R. and Norman, C. 1983, Astrophys. J. , 274, 677.Google Scholar
Pudritz, R. and Norman, C. 1986, Astrophys. J., 301, 571.CrossRefGoogle Scholar
Stone, J., Norman, M. and Mihalas, D. 1989, in Accretion Disks and Magnetic Fields in Astrophysics , ed. Belvedere, G., (Kluwer: Dordrecht), 207.Google Scholar
Tomisaka, K., Ikeuchi, S. and Nakamura, T. 1988, Astrophys. J. , 335, 239.Google Scholar
Uchida, Y. and Shibata, K. 1985, Publ. Astron. Soc. Japan, 37, 515.Google Scholar