Ultracool dwarfs from the 2MASS

Using data from the 2 Micron All Sky Survey All-Sky Point Source Catalogue, we have extended our census of nearby ultracool dwarfs to cover the full celestial sphere above...本研究基于2微米全天巡天（2 Micron All Sky Survey, 2MASS）全天点源星表的数据，将邻近超冷矮星（ultracool dwarfs）的巡天普查范围拓展至覆盖天顶以上的全天空区域...