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Disc Accretion Onto Magnetic Stars: Slow Rotator And Propeller

Published online by Cambridge University Press:  12 April 2016

Jianke Li  and
Dayal T. Wickramasinghe
Jianke Li
Affiliation:
ANUATC, and Department of Mathematics, The Australian National University, ACT 0200, Australia
Dayal T. Wickramasinghe
Affiliation:
ANUATC, and Department of Mathematics, The Australian National University, ACT 0200, Australia

Abstract

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We study two magnetised accretion – outflow problems: the slow rotator and the propeller. In the former case, we show that the funnel flow does not result in the accretion of a significant amount of matter angular momentum, contrary to what is assumed in the standard Ghosh and Lamb model. Implications of this finding are investigated, particularly in relation to the fastness parameter. We also argue that magnetospheric mass ejection (the magnetospheric streamer model) is a viable mechanism for the ejection of mass and angular momentum from a magnetic star-disc system in the propeller regime.

Type
Part 6. Disk-Star-Magnetosphere Interaction
Information
International Astronomical Union Colloquium , Volume 163: Accretion Phenomena and Related Outflows , 1997 , pp. 241 - 250
Copyright
Copyright © Astronomical Society of the Pacific 1997

References

Aly, J.J., 1980, A&A, 86, 192 Google Scholar
Meintjes, P.A., & De Jager, O.C., 1995, Cape Workshop on Magnetic Cataclysmic Variables, ASP Conference Series, Vol., 85 Google Scholar
Ghosh, P., Lamb, F.K. & Pethick, C.J., 1977, ApJ, 217, 578 Google Scholar
Ghosh, P., & Lamb, F.K., 1979a, ApJ, 232, 259 Google Scholar
Ghosh, P., & Lamb, F.K., 1979b, ApJ, 234, 296 Google Scholar
Hu, W-R, 1982, Ap&SS, 85, 351 Google Scholar
Hu, W-R, 1983, Ap&SS, 97, 353 Google Scholar
Lerche, I., 1970, ApJ, 162, 675 Google Scholar
Li, J., 1996, ApJ, 456, 696 Google Scholar
Li, J., Wickramasinghe, D.T., & Rüdiger, G., 1996, ApJ, in pressGoogle Scholar
Li, J., & Wickramasinghe, D.T., 1996, MNRAS, submittedGoogle Scholar
Li, X-D., & Wang, Z-R, 1996, A&A, letts, 307, L5 Google Scholar
Lipunov, V.M., 1992, Astrophysics of Neutron Stars, p 89, Berlin Heidelberg: Springer-Verlag Google Scholar
Longair, M., 1994, High Energy Astrophysics, Vol. 2, P 157, Cambridge, Cambridge University Press Google Scholar
Lovelace, R.V.E., Romanova, M.M., & Bisnovatyi-Kogan, G.S., 1995, MNRAS, 275, 244 Google Scholar
Mestel, L., 1968, MNRAS, 138, 395 CrossRefGoogle Scholar
Pneuman, G.W., 1972, Solar Physics, 23, 223 Google Scholar
Popham, R. & Narayan, R., 1991, ApJ, 370, 604 Google Scholar
Priest, E.R., & Smith, D.F., 1972, Astrophysical Letts, 12, 25 Google Scholar
Roberts, P.H., 1967, An introduction to Magnetohydrodynamics, Longmans: London 1994, ApJ, 429, 781 Google Scholar
Wang, Y-M, 1995, ApJ, 499, L153 Google Scholar
Wang, Y-M, & Robinson, J.A., 1985, A&A, 151, 361 Google Scholar
Weber, E.J., & Davis, L., 1967, ApJ, 148, 217 Google Scholar