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Accretion in Magnetic Cataclysmic Variables

Published online by Cambridge University Press:  12 April 2016

J.M. Hameury ,
A.R. King ,
J.P. Lasota  and
H. Ritter
J.M. Hameury
Affiliation:
Observatoire de Paris, Section de Meudon, France
A.R. King
Affiliation:
Observatoire de Paris, Section de Meudon, France Astronomy Department, University of Leicester, U.K.
J.P. Lasota
Affiliation:
Observatoire de Paris, Section de Meudon, France Institut d Astrophysique de Paris, France
H. Ritter
Affiliation:
Universitätssternwarte München, F.R.G.

Abstract

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We discuss the arguments in favour of the suggestion that polars (AM Her systems) and intermediate polars (IP’s) have magnetic fields of the same order of magnitude, and form one single class of objects. The period distribution of magnetic cataclysmic variables is well explained if they evolve the same way as non magnetic systems, IP’s becoming AM Her systems after crossing the gap. We discuss some consequences of the limited magnetic moment distribution (1033 ≤ μ ≤ 1034 G cm−3) in magnetic CV’s, in particular for the existence of accretion discs in those systems.

Type
VI. Magnetic Cataclysmic Systems
Information
International Astronomical Union Colloquium , Volume 93: Cataclysmic Variables: Recent Multi-Frequency Observations and Theoretical Developments , 1987 , pp. 583 - 590
Copyright
Copyright © Reidel 1987

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