标题： 盘状白矮星群体的蒙特卡罗模拟 显示英文标题

标题： Monte Carlo simulations of the disk white dwarf population

摘要： 为了理解银河系的动力学和化学演化，研究本地邻域具有根本的重要性。白矮星是探测太阳邻域历史的理想候选者，因为这些“化石”恒星具有非常长的演化时间尺度，同时它们的演化相对较为明确。事实上，已有几位作者使用白矮星光度函数来达到这一目的。然而，由于样本的统计量相对较少，尤其是在低光度区域，长期存在的问题依然存在。在本文中，我们通过蒙特卡洛方法评估白矮星光度函数的统计可靠性。 显示英文摘要

摘要： In order to understand the dynamical and chemical evolution of our Galaxy it is of fundamental importance to study the local neighborhood. White dwarf stars are ideal candidates to probe the history of the solar neighborhood, since these ``fossil'' stars have very long evolutionary time-scales and, at the same time, their evolution is relatively well understood. In fact, the white dwarf luminosity function has been used for this purpose by several authors. However, a long standing problem arises from the relatively poor statistics of the samples, especially at low luminosities. In this paper we assess the statistical reliability of the white dwarf luminosity function by using a Monte Carlo approach.