SW Sextantis 型类灾变星的 0.5 相位吸收
天体物理学
2009-10-30 v1
摘要
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.
引用
@article{arxiv.astro-ph/9802042,
title = {The phase 0.5 absorption in SW Sextantis-type cataclysmic variables},
author = {Coel Hellier},
journal= {arXiv preprint arXiv:astro-ph/9802042},
year = {2009}
}
备注
4 pages, 3 figures, LaTeX, To appear in PASP. Also at http://www.astro.keele.ac.uk/~ch/