Red clump stars selected from LAMOST and APOGEE

Core helium-burning red clump (RC) stars are excellent standard candles in the Milky Way. These stars may have more precise distance estimates from spectrophotometry than from...核心氦燃烧红团簇（RC）恒星是银河系中性能优异的标准烛光。相较于其他测距手段，通过分光光度法对这类恒星进行距离估算可获得更高的精度。