Coronal Structure On The Road To Cataclysm

Details Coronal Structure On The Road To Cataclysm Coronal Structure On The Road To Cataclysm

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008xmm..prop..103d&link_type=abstract

XMM-Newton Proposal ID #06039801

Physics

Stars, White Dwarfs, Solar System, Dv Psc

Scientific paper

The coronal morphology of K- and M-dwarfs in pre-cataclysmic and cataclysmic binaries is important for their angular momentum loss and evolutionary paths to novae and Type 1a supernovae. Yet very little data on the coronae of such rapidly rotating stars exists. A 55ks observation of the recently identified X-ray-bright close (p=0.3d) K4V+M1V partially eclipsing binary DV Piscium presents an excellent opportunity to investigate coronal morphology at rotation rates similar to those of CV and pre-CV secondaries, and test directly whether coronally-saturated stars are dominated by polar coronae. The observation requires the large effective area of XMM-Newton.

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