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Magnetic Fields in AM Her Binaries

Published online by Cambridge University Press:  12 April 2016

Kinwah Wu  and
Paul A. Mason
Kinwah Wu
Affiliation:
RCfTA, The University of Sydney, NSW 2006, Australia
Paul A. Mason
Affiliation:
Department of Astronomy, Case Western Reserve University, Cleveland, OH 44106, USA

Extract

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There is growing evidence of complex white dwarf magnetic fields in CVs (e.g. Meggitt & Wickramasinghe 1989; Robinson & Cordova 1994). The properties of systems with non-dipolar white dwarf magnetic fields have been investigated, and it was found that a non-negligible quadrupole component is essential for the magnetic locking of AM Her binaries (AM Hers) (Wu & Wickramasinghe 1993). In a recent study the ratio of the quadrupole to dipole component of the surface field of white dwarfs was shown to grow by a factor of 10 during the white dwarf cooling lifetime (Muslimov, van Horn & Wood 1995), thus the quadrupole field component is long lived and significant.

Type
Polar Systems
Information
International Astronomical Union Colloquium , Volume 158: Cataclysmic Variables and Related Objects , 1996 , pp. 203 - 204
Copyright
Copyright © Kluwer 1996

References

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