White dwarf population of Messier 67

White dwarfs (WDs) are excellent forensic tools for studying end-of-life issues surrounding low- and intermediate-mass stars, and the old, solar metallicity open star cluster...白矮星（White dwarfs, WDs）是研究低质量与中等质量恒星演化末期相关问题，以及古老、太阳金属丰度疏散星团的绝佳示踪工具……