Magnetic Activity on the Degenerate Secondary Star in EF Eri

Details Magnetic Activity on the Degenerate Secondary Star in EF Eri Magnetic Activity on the Degenerate Secondary Star in EF Eri

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.0917k&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #09.17; Bulletin of the American Astronomical Society, V

Astronomy and Astrophysics

Astronomy

Scientific paper

We present a spectroscopic and photometric study of the magnetic cataclysmic variable EF Eri during its current low state. We discuss the origin of its emission lines including a multi-component H-alpha line. The emission clearly originates on the secondary star and advocates the presence of stellar activity on the 55 Jupiter mass secondary star. We present an initial model of magnetic flux tubes connecting to the two stars inCVs such as EF
Eri. Our model is based on the growing sample of active secondary stars in magnetic CVs.

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