Hostname: page-component-7bb8b95d7b-dvmhs Total loading time: 0 Render date: 2024-10-06T15:21:53.649Z Has data issue: false hasContentIssue false
  • English
  • Français

An MHD Model of Be Stars with Disks

Published online by Cambridge University Press:  12 April 2016

A. E. Dudorov  and
R. E. Pudritz
A. E. Dudorov
Affiliation:
Chelyabinsk State University, 124 Kashirinych St., Chelyabinsk, 454136Ruissia
R. E. Pudritz
Affiliation:
McMaster University, Hamilton, Ontario, L8S 4M1Canada

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.

An investigation of the formation and evolution of Be stars show that these stars could have dipolar fossil magnetic fields. This magnetic field should constrain the circumstellar magnetic disk and influence its dynamical features. For studying these effects we refine the alphamodel of accretion disks of Shakura and Sunyaev by incorporating into this model the evolution of large-scale magnetic fields. In the frame of our model we can investigate the rotational history of the star with the disk and the ionization and thermal properties of disks. We show in particular that in the magnetopause region a current sheet can form that can generate X-ray radiation.

Type
6. Disks
Information
International Astronomical Union Colloquium , Volume 175: The Be Phenomenon in Early-Type Stars , 2000 , pp. 611 - 616
Copyright
Copyright © Astronomical Society of the Pacific 2000

References

Cowling, T.G. 1945, MNRAS 105, 166 CrossRefGoogle Scholar
Dudorov, A.E. 1990, in Itogy Nauki i Texniki, VINITI, Iss. 39, 77 (In Russian)Google Scholar
Dudorov, A.E. 1995, Astron. Reports 39, 790 Google Scholar
Dudorov, A.E. 1998, Izvestia Akademii Nauk, Seria Fisicheskaya 62, 1759 Google Scholar
Dudorov, A.E., Tutukov, A.V. 1990, Sov. Astron. 34, 171 Google Scholar
Dudorov, A.E., Zhilkin, A.G., Kuznetsov, O.A. 1999a in Numerical Astrophysics, Kluwer Ac. Publ., 1999, 240, 389 CrossRefGoogle Scholar
Dudorov, A.E., Zhilkin, A.G., Kuznetsov, O.A. 1999b Mat. Modelirovanie 101, 101 (In Russian)Google Scholar
Henrichs, H.F. 2000, this volumeGoogle Scholar
Mestel, L. 1967, in The Magnetic and Related stars, Cameron, A.G.W., Ed., Maltimore: Mono Book, 1967, 101 Google Scholar
Shakura, N.I., Sunyaev, 1973, A&A 24, 337 Google Scholar
Spitzer, L. 1958, in Electromagnetic Phenomena in Cosmical Physics (IAU Symp. no.6) Lehnert, B., Ed. Cambridge: Cambridge Univ., 1958, 169 Google Scholar