The phase 0.5 absorption in SW Sextantis-type cataclysmic variables
نویسنده
چکیده
The SW Sextantis stars are a group of cataclysmic variables with distinctive observational characteristics, including absorption features in the emission line cores at phases 0.2–0.6. Hellier and Robinson have proposed that these features are caused by the accretion stream flowing over the accretion disk. However, in a simple model the absorption occurred at all orbital phases, which is contradicted by the data. I show that invoking a flared accretion disk resolves this problem.
منابع مشابه
Spectroscopic search for new SW Sextantis stars in the 3 – 4 hour orbital period range
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