论文标题
盖亚（Gaia）揭示的白矮人进化中的两个延迟
Two delays in white dwarf evolution revealed by Gaia
论文作者
论文摘要
通过比较来自Gaia数据的高质量白矮人的两个年龄指标，最近已经发现了两个发现：一个是在Hertzsprung-russell图上产生Q分支结构的冷却异常的存在，另一个是Double-White-White-White Warf Warf合并产品的存在。前者对白矮人冷却模型提出了挑战，后者对二进制进化和型超新星有影响。
By comparing two age indicators of high-mass white dwarfs derived from Gaia data, two discoveries have been made recently: one is the existence of a cooling anomaly that produces the Q branch structure on the Hertzsprung--Russell diagram, the other is the existence of double-white-dwarf merger products. The former poses a challenge for white dwarf cooling models, and the latter has implications on binary evolution and type-Ia supernovae.
