Data mining the Next Generation Transit Survey

“下一代过境调查是用于探测太阳系外行星的首要广域地基调查。本计画利用NGTS的红敏感性来研究新发现的M矮星双星系统的性质。M型矮双星的性质仍然是相当不确定的，特别是从对流到辐射能量传输的转变。以前的研究表明，双星中的M矮星相对于单个M矮星是膨胀的，而双星星星形成的情况表明，它们的质量比应该近似相等。因此，M矮星系统的研究可以用来检验恒星形成和恒星演化模型。"

"The Next Generation Transit Survey is the premier wide field ground-based survey for the detection of extra-solar planets. This project exploits the red sensitivity of NGTS to investigate the nature of newly discovered M-dwarf binary systems. The properties of M-dwarf binaries remain rather uncertain, in particular the transition from convective to radiative energy transport. Previous studies suggest that M-dwarfs in binaries are inflated relative to single M-dwarf stars, while binary star formation scenarios suggest that their mass ratios should be approximately equal. The study of M-dwarf systems may thus be used to test both stellar formation and stellar evolution models."