Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-26T14:28:24.500Z Has data issue: false hasContentIssue false
  • English
  • Français

Three-Dimensional Global MHD Simulations of Magnetised Accretion Disks and Jets

Published online by Cambridge University Press:  12 April 2016

R. Matsumoto  and
K. Shibata
R. Matsumoto*
Affiliation:
Department of Physics, Faculty of Science, Chiba University, 1–33 Yayoi-Cho, Inage-ku, Chiba 263, JAPAN
K. Shibata
Affiliation:
National Astronomical Observatory, Mitaka, Tokyo 181, JAPAN
*
1Advanced Science Research Center, JAERI, Naka, Japan

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 carried out three-dimensional global MHD simulations of jet formation from an accretion disk threaded by large-scale magnetic fields. Numerical results show that bipolar jets with maximum speed υjet ~ υKepler are created. The surface layer of the disk accretes faster than the equatorial part because magnetic braking most effectively affects that layer. Accretion proceeds along spiral channels which correspond to the surface avalanche flow appearing in previous axisymmetric simulations. Spirally shaped low β (= Pgas/Pmag < 1) regions appear in the innermost part of accretion disks where toroidal magnetic fields become dominant.

Type
Part 10. Accretion Disks and Outflows
Information
International Astronomical Union Colloquium , Volume 163: Accretion Phenomena and Related Outflows , 1997 , pp. 443 - 447
Copyright
Copyright © Astronomical Society of the Pacific 1997

References

Balbus, S.A., & Hawley, J.F. 1991, ApJ, 376, 214 Google Scholar
Blandford, R.D., & Payne, 1982, MNRAS, 199, 883 Google Scholar
Curry, C & Pudritz, R.E 1996, MNRAS, 281, 119 Google Scholar
Hawley, J.F., & Balbus, S.A. 1992, ApJ, 400, 595 Google Scholar
Hawley, J.F., Gammie, C.F., & Balbus, S.A. 1995, ApJ, 440, 742 Google Scholar
Matsumoto, R., Uchida, Y., Hirose, S., Shibata, K., Hayashi, M.R., Ferrari, A., Bodo, G., & Norman, C. 1996, ApJ, 461, 115 Google Scholar
Ogilvie, G.I., & Pringle, J.E. 1996, MNRAS, 279, 152 CrossRefGoogle Scholar
Papaloizou, J.C.B., & Pringle, J.E. 1984, MNRAS, 208, 721 Google Scholar
Shibata, K., & Uchida, Y. 1986, PASJ, 38, 631 Google Scholar
Stone, J.M., & Norman, M.L. 1994, ApJ, 433, 746 Google Scholar
Uchida, Y., & Shibata, K. 1985, PASJ, 37, 515 Google Scholar