Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aas...211.5126h&link_type=abstract
American Astronomical Society, AAS Meeting #211, #51.26
Astronomy and Astrophysics
Astronomy
Scientific paper
Cataclysmic variables are binary star systems, each consisting of a white dwarf (the primary) and a low mass star (the secondary). Usually, matter flows from the secondary onto the primary, producing X-rays upon impact. However, previous observations have indicated that certain cataclysmic variables frequently exhibit low states - a dramatic decrease in mass transfer (and thus X-ray production) for an extended period of time. Low states can last up to several years, and this phenomenon is currently not well understood. This research is primarily focused on creating a model to elucidate the origin of low states using data gathered from X10, a magnetic cataclysmic variable that experienced a low state in year 2005. The model proposed in this study attributes low states to the magnetic interactions between the secondary's starspots and the primary, and its predictions on which systems should exhibit low states and which ones should not have all been confirmed by past observations.
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