标题： 开普勒空间望远镜的白矮星振荡学 显示英文标题

标题： White-dwarf asteroseismology with the Kepler space telescope

摘要： 在它们的演化过程中，白矮星至少经历一次变率阶段，在此期间它们所经历的整体脉动使天文学家得以窥探其内部结构，从而通过恒星地震学揭示其深层内部结构和演化阶段。 过去十年来，脉动白矮星的研究取得了显著进展，这在很大程度上归功于来自太空的前所未有的高质量连续观测数据的到来，例如科罗（CoRoT）、开普勒（Kepler）和凌日系外行星巡天卫星（TESS）任务提供的观测数据。 这与新的详细理论模型的出现以及改进的恒星地震学技术的发展相结合，有助于揭示许多脉动白矮星的内部化学结构，同时也提出了挑战理论家的新问题。 特别是，数月不间断监测白矮星使得发现一些无法通过地面观测检测到的现象成为可能，尽管像“全地球望远镜”（WET）这样的先前努力非常出色。 在这里，我们首先回顾白矮星和前白矮星及其脉动的基本特性，然后介绍目前已知的不同类型的脉动天体。 最后，我们回顾了利用开普勒太空望远镜提供的前所未有的高质量观测数据所取得的关于脉动白矮星和前白矮星的一些最突出的发现，但我们预计该任务尚未被分析的空间数据仍有潜力揭示这些极其有趣的变星的新秘密。 显示英文摘要

摘要： In the course of their evolution, white-dwarf stars go through at least one phase of variability in which the global pulsations they undergo allow astronomers to peer into their interiors, this way making possible to shed light on their deep inner structure and evolutionary stage by means of asteroseismology. The study of pulsating white dwarfs has witnessed substantial progress in the last decade, and this has been so largely thanks to the arrival of continuous observations of unprecedented quality from space, like those of the CoRoT, Kepler, and TESS missions. This, along with the advent of new detailed thoretical models and the development of improved asteroseismological techniques, has helped to unravel the internal chemical structure of many pulsating white dwarfs, and, at the same time, has opened new questions that challenge theoreticians. In particular, uninterrupted monitoring of white-dwarf stars for months has allowed discovering phenomena impossible to detect with ground-based observations, despite admirable previous efforts like the Whole Earth Telescope (WET). Here, we start by reviewing the essential properties of white-dwarf and pre-white dwarf stars and their pulsations, and then, we go through the different families of pulsating objects known to date. Finally, we review the most outstanding findings about pulsating white dwarfs and pre-white dwarfs made possible with the unprecedented-quality observations of the Kepler space telescope, although we envisage that future analyzes of space data from this mission that still await to be examined may reveal new secrets of these extremely interesting variable stars.