Calibration of the Halpha Age-Activity relation for M dwarfs: Samples

Supplementary material to the work "Calibration of the H\(\alpha\) Age-Activity relation for M dwarfs". We include the following two samples: We compiled 89,270 M dwarfs with H\(\alpha\) equivalent widths (H\(\alpha\)EW) measurements from the literature. From this sample we were able to age-date 892 M dwarfs (1,121 including repeated stars which represent extra measurements of H\(\alpha\)EW). These ages were obtained by identifying M dwarfs which belong to known young associations, or are co-moving with a white dwarf of known age. To identify co-movers we used kinematics and parallaxes from Gaia DR2.本资料为论文《M矮星Hα年龄-活动度关系的定标》（Calibration of the Hα Age-Activity relation for M dwarfs）的补充材料。本次研究纳入了以下两类样本：我们从已发表文献中汇编得到89270颗带有Hα等效宽度（Hα Equivalent Width，HαEW）测量数据的M矮星。从该样本中，我们可对892颗M矮星进行定年；若计入包含额外HαEW测量数据的重复观测恒星，则样本总量为1121颗。这些定年结果通过两种途径获得：一是识别隶属于已知年轻星协的M矮星，二是选取与已知年龄白矮星共动的M矮星。为识别共动天体，我们使用了盖亚第二版数据发布（Gaia DR2）提供的运动学参数与视差数据。