狼星风是否由辐射驱动?
天体物理学
2007-05-23 v1
摘要
Potsdam狼星(PoWR)模型的最新结果表明,狼星质量损失可由辐射风力驱动。然而,对银河系狼星样本的检视揭示,部分观测到的狼星与模型存在显著矛盾。这类对象主要由中间亚型组成。在晚型WNG星中,我们发现因其光度变动而闻名的WNG8亚型与模型不符。还有是否存在其他驱动机制作用于这些天体?
引用
@article{arxiv.astro-ph/0609675,
title = {Are Wolf-Rayet winds driven by radiation?},
author = {G. Gräfener and W. -R. Hamann},
journal= {arXiv preprint arXiv:astro-ph/0609675},
year = {2007}
}
备注
8 pages, to appear in "Mass loss from stars and the evolution of stellar clusters". Proc. of a workshop held in honour of H.J.G.L.M. Lamers, Lunteren, The Netherlands. Eds. A. de Koter, L. Smith and R. Waters (San Francisco: ASP)