The Phase 0.5 Absorption in SW Sextantis–Type Cataclysmic Variables
Open Access
- 1 April 1998
- journal article
- research article
- Published by IOP Publishing in Publications of the Astronomical Society of the Pacific
- Vol. 110 (746) , 420-424
- https://doi.org/10.1086/316150
Abstract
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 & 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.Keywords
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