XMM-Newton Proposal 03070901

Details XMM-Newton Proposal 03070901 XMM-Newton Proposal 03070901

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004xmm..prop..225s&link_type=abstract

XMM-Newton Proposal ID #03070901

Computer Science

White Dwarf Binaries, Neutron Star Binaries, Cataclysmic Variables, Ulxs, Black Holes, Rx J0524+42, Xmm-Newton Proposal 03070901

Scientific paper

We propose to validate different scenarios (pole switching vs. pole migration) of accretion in slightly asynchronously rotating magnetic cataclysmic variables (mCVs) using a 60 ksec EPIC observation of a recently identified class member. Nearly-synchronous mCVs are important probes of magnetic accretion as the field geometry at the magnetospheric impact region of the accretion stream is perma- nently changing during the beat cycle between orbital and spin periods. Among the nearly-synchronous mCVs, RX J0524+42 has the highest degree of asynchronismn making it the most suitable target for this study. The proposed observations will cover just one complete beat cycle and will reveal the location, plasma temperature, and energy budget of the accretion regions as a function of the beat phase.

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