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The XMM-Newton-MSSL survey of Polars

Published online by Cambridge University Press:  12 April 2016

Gavin Ramsay  and
Mark Cropper
Gavin Ramsay
Affiliation:
Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey, RH5 6NT, UK
Mark Cropper
Affiliation:
Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey, RH5 6NT, UK

Abstract

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The XMM-Newton-MSSL survey of polars is a snapshot survey of nearly 40 polars. We present the initial results, with an emphasis on the energy balance in these systems and the number of systems which were observed in a low accretion state. In contrast to the ROSAT results we find that the vast majority of polars show no ‘soft X-ray excess’. We find that half of our sample were observed in low or off accretion states. We find no evidence that these systems were biased towards certain orbital periods.

Type
Part 3. A. Accretion Plasma diagnostics - Observations
Information
International Astronomical Union Colloquium , Volume 190: Magnetic Cataclysmic Variables , 2004 , pp. 106 - 112
Copyright
Copyright © Astronomical Society of the Pacific 2004

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