arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0901.1618astro-ph.SR
收藏

星震学与EHB星的演化

Asteroseismology and evolution of EHB stars

Roy H. Østensen

摘要:

极水平分支恒星的性质已经被很好地理解,但是将恒星带到这种特殊配置的许多路径存在很大的不确定性。脉动EHB星的星震学已经在一些物体上进行了研究,使我们进入了将推断的性质与演化模型进行比较的阶段。在这篇评论中,我概述了我们目前对这些恒星的形成和演化的理解,重点是最近的进展。其目的是展示如何由星震学得出的物理参数可以使不同的演变模型之间的歧视。

英文摘要:

The properties of the Extreme Horizontal Branch stars are quite well understood, but much uncertainty surrounds the many paths that bring a star to this peculiar configuration. Asteroseismology of pulsating EHB stars has been performed on a number of objects, bringing us to the stage where comparisons of the inferred properties with evolutionary models becomes feasible. In this review I outline our current understanding of the formation and evolution of these stars, with emphasis on recent progress. The aim is to show how the physical parameters derived by asteroseismology can enable the discrimination between different evolutionary models.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑