来自 SPY 项目的近双星 EHB 星
天体物理学
2009-11-10 v1
摘要
我们报告了对46颗次亚硅 b (sdB) 和23颗富氦亚硅 O (He-sdO) 星的径向速度 (RV) 调查结果。我们发现了18颗 (39%) 新的 sdB 双星系统，但仅有1颗 (4%) He-sdO 双星。 presenting of nine sdB and sdO binaries' orbital parameters derived from follow-up spectroscopy are presented. Our results are compared with evolutionary scenarios and previous observational investigations.
引用
@article{arxiv.astro-ph/0401201,
title = {Close binary EHB stars from SPY},
author = {R. Napiwotzki and C. A. Karl and T. Lisker and U. Heber and N. Christlieb and D. Reimers and G. Nelemans and D. Homeier},
journal= {arXiv preprint arXiv:astro-ph/0401201},
year = {2009}
}
备注
To appear in "Extreme Horizontal Branch Stars and Related Objects", Astrophysics and Space Science, Kluver Academic Publishers, edited by P.F.L. Maxted