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arXiv 2202.02052astro-ph.HEhep-ph
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作为物理实验室的白矮星:光与影

White dwarfs as Physics laboratories: lights and shadows

Jordi Isern, Santiago Torres, Alberto Rebassa-Mansergas

摘要:

白矮星的演化本质上是一个重力热冷却过程,其中预测其演化的基本成分得到了很好的识别,尽管并不总是很好地理解。有两种独立的方法来测试冷却速率。一个是白矮星群体的光度函数,另一个是经历变化的个体的脉动周期的长期漂移。这两种情况都对冷却或加热时间尺度敏感,因此,包括任何额外的能量源或汇将修改这些属性,并允许设置这些扰动的边界。这些研究还需要完整的、具有统计意义的样本,而目前的大数据调查正在为这些样本提供前所未有的丰富信息。在本文中,我们回顾这些技术是如何应用到几种情况下,如长期漂移的牛顿引力常量,中微子磁矩,轴子和弱相互作用的大质量粒子(WIMPS)。

英文摘要:

The evolution of white dwarfs is essentially a gravothermal process of cooling in which the basic ingredients for predicting their evolution are well identified, although not always well understood. There are two independent ways to test the cooling rate. One is the luminosity function of the white dwarf population, and another is the secular drift of the period of pulsation of those individuals that experience variations. Both scenarios are sensitive to the cooling or heating time scales, for which reason, the inclusion of any additional source or sink of energy will modify these properties and will allow to set bounds to these perturbations. These studies also require complete and statistical significant samples for which current large data surveys are providing an unprecedented wealth of information. In this paper we review how these techniques are applied to several cases like the secular drift of the Newton gravitational constant, neutrino magnetic moments, axions and weakly interacting massive particles (WIMPS).

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。

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