Theoretical Evolutionary and Seismological Studies of Hot Highly Evolved Stars

20世纪80年代S在恒星物理方面最激动人心的突破之一是将非径向脉动研究应用于白矮星内部的研究。以前的努力之所以取得成功，很大程度上是因为天文学家能够将白矮星的观测周期与首席调查员(PI)确定的理论模型计算的周期进行匹配。在这个为期三年的计划中，PI将把他之前的工作扩展到恒星的演化模型，并将能够在比人类寿命短得多的时间尺度(例如，十年)内预测恒星从演化到结构变化的影响。这项工作还将允许将重要但迄今仅粗略处理的过程的影响包括在这些计算中，例如化学分离。这项工作不仅适用于白矮星演化的研究，也适用于其他恒星的“星震学”研究，可能包括太阳。

One of the most exciting breakthroughs of the 1980's in stellar physics is the study of nonradial pulsations to the study of the interiors of white dwarf stars. Much of the previous success of previous efforts has been because of the ability of astronomers to match observed periods in white dwarf variable stars to periods computed from theoretical models determined by the Principal Investigator (PI). In this three year program the PI will extend his previous work to evolutionary models of stars and will enable the effects of changes in the star's structure from its evolution to be predicted for timescales considerably shorter than a human lifetime (e.g. a decade). This work will also permit the effects of important but hithero only crudely treated processes, such as chemical separation, to be included in these calculations. This work will have application not only to the study of white dwarf evolution but to the studies of "asteroseismology" of other stars as well, possibly including the Sun.