Hard X-ray properties of magnetic cataclysmic variables

S. Scaringi, A. J. Bird, A. J. Norton, C. Knigge, A. B. Hill, D. J. Clark, A. J. Dean, E. J. Barlow, L. Bassani, A. Bazzano, M. Fiocchi, R. Landi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We have constructed a new sample of magnetic cataclysmic variables (mCVs) by cross-correlating candidate sources detected in INTEGRAL/IBIS observations against catalogues of known CVs and included mCVs observed with either Swift/BAT or SUZAKU/HXD. Here we review the properties arising from this hard X-ray selected sample and find that most hard X-ray detected mCVs have P spin/Porb<0.1 above the period gap. The observational features of the Pspin-Porb plane are discussed in the context of mCV evolution scenarios. We also present evidence for correlations between hard X-ray spectral hardness and Pspin, Porb and Pspin/Porb. An attempt to explain the observed correlations is made in the context of mCV evolution and accretion footprint geometries on the white dwarf surface.

Original languageEnglish
Title of host publicationX-ray Astronomy-2009
Subtitle of host publicationPresent Status, Multi-Wavelength Approach and Future Perspectives - Proceedings of the International Conference
Pages201-202
Number of pages2
DOIs
StatePublished - 2010
EventInternational Conference on X-ray Astronomy-2009: Present Status, Multi-Wavelength Approach and Future Perspectives - Bologna, Italy
Duration: Sep 7 2009Sep 11 2009

Publication series

NameAIP Conference Proceedings
Volume1248
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on X-ray Astronomy-2009: Present Status, Multi-Wavelength Approach and Future Perspectives
CountryItaly
CityBologna
Period09/7/0909/11/09

Keywords

  • Magnetic Binary Evolution
  • X-ray observations: Magnetic Cataclysmic Variables

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