1. School of Mechanical, Electrical & Information Engineering, Shandong University at Weihai, Weihai 264209, China 2. National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 3. University of Chinese Academy of Sciences, Beijing 100049, China
Abstract：As the most common stars in the galaxy, M dwarfs can be used to trace the structure and evolution of the Milky Way. Besides, investigating M dwarfs is important for searching for habitability of extrasolar planets orbiting M dwarfs. Spectral classification of M dwarfs is a fundamental work. The authros used DR7 M dwarf sample of SLOAN to extract important features from the range of 600~900 nm by random forest method. Compared to the features used in Hammer Code, the authors added three new indices. Our test showed that the improved Hammer with new indices is more accurate. Our method has been applied to classify M dwarf spectra of LAMOST.
衣振萍1, 2, 3, 潘景昌1*, 罗阿理2 . M矮星光谱型分类研究 [J]. 光谱学与光谱分析, 2013, 33(08): 2251-2254.
YI Zhen-ping1, 2, 3, PAN Jing-chang1*, LUO A-li2 . The Study of M Dwarf Spectral Classification . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(08): 2251-2254.
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