高振幅δ sct型变量

Third Coast Pub Date : 2004-06-01 DOI:10.1553/CIA145S40
E. Rodriguez
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引用次数: 3

摘要

历史上,高振幅δ Sct型变量(全振幅大于0.m3的δ Sct脉动)被认为是与“正常”低振幅δ Sct变量分开的一组,主要是基于它们的脉动幅度。这一直是许多作者争论的话题。在Breger(1977,1980)的评论论文之后,普遍接受的观点是,根据标准恒星演化理论,δ Sct变量与振幅无关,是正常的星族I恒星,在主序中或从主序中演化出来。这不包括最近发现的主序前δ Sct脉动。尽管如此,仍然存在一些差异和一些有趣的方面使这些高振幅物体非常有用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
High Amplitude δ Sct-type variables
Historically, the high amplitude δ Sct-type variables (δ Sct pulsators with full amplitudes larger than 0.m3) have been considered as a separated group from the “normal” low amplitude δ Sct variables on the basis, mainly, of their pulsation amplitudes. This has been a subject of controversy by a number of authors. After the review papers by Breger (1979, 1980), the commonly accepted idea is that, independently of the amplitude, the δ Sct variables are normal Population I stars in, or evolving off, the main sequence according to standard stellar evolution theory. This excludes the recently discovered pre-main sequence δ Sct pulsators. Nevertheless, some differences remain and some interesting aspects make these high amplitude objects very useful.
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