PPM-XL Bright M Dwarfs Catalog

Using the Position and Proper Motion Extended-L (PPMXL) catalog, the authors have used optical and near-infrared color cuts together with a reduced proper motion cut to find...作者已借助位置与自行扩展L（PPMXL）星表，采用光学与近红外颜色截断法结合精简自行截断法，以寻找……