Magnetic accretion in high-accretion rate polars

Details Magnetic accretion in high-accretion rate polars Magnetic accretion in high-accretion rate polars

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007xmm..prop..130s&link_type=abstract

XMM-Newton Proposal ID #05544206

Physics

White Dwarf Binaries, Neutron Star Binaries, Cataclysmic Variables, Ulxs, Black Holes, Ef Eri, Vv Pup, Hu Aqr, Uz For, Am Her, Qq Vul, Xmm-Newton Proposal Id #05544206

Scientific paper

The spectral components of polars -- strongly magnetic CVs -- were barely disentangled by previous X-ray missions. The physics of accretion in a strongly magnetic, non-relativistic environment is therefore still puzzling. XMM-Newton, in principle, can solve the riddle. But even in its 7th year, only one of the bright, classical polars was observed in a high accretion state by XMM-Newton. We propose a triggered observation of a further such system. We will investigate the physics of the hard X-ray emitting shock, the heated accretion pole cap, the atmosphere of the white dwarf, the absorption in the shock and in the flow, the lines in the accretion flow and the reflection from the white dwarf by phase-resolved CCD- and RGS-spectroscopy and by high-speed OM-photometry.

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