Spectroscopy of M dwarfs in Praesepe

Spectroscopy of 222 late-type dwarfs in the Praesepe open cluster is used to measure the strengths of molecular and atomic features and to examine their sensitivity to...本数据集基于对蜂巢星团（Praesepe）内222颗晚型矮星的光谱观测，用于测定分子与原子谱线特征的强度，并考察其对……的敏感性。