Discovery of 16 New Members of the Solar Neighborhood Using Proper Motions from CatWISE2020
Discovery of 16 New Members of the Solar Neighborhood Using Proper Motions from CatWISE2020
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DOI：
10.3847/1538-3881/ac4713
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发表时间：
2021-12
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通讯作者：
Tarun Kota;J. Kirkpatrick;D. Caselden;F. Marocco;A. Schneider;J. Gagné;J. Faherty;A. Meisner;M. Kuchner;S. Casewell;Kanishk Kacholia;T. Bickle;Paul-André Beaulieu;G. Colin;Leslie K. Hamlet;Jörg Schümann;Christopher Tanner
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作者：
Tarun Kota;J. Kirkpatrick;D. Caselden;F. Marocco;A. Schneider;J. Gagné;J. Faherty;A. Meisner;M. Kuchner;S. Casewell;Kanishk Kacholia;T. Bickle;Paul-André Beaulieu;G. Colin;Leslie K. Hamlet;Jörg Schümann;Christopher Tanner
为了在太阳附近识别附近和不寻常的冷物体，我们使用CatWISE2020适当的运动数据结合机器学习方法搜索了以前未识别的运动物体。我们将运动候选对象与2MASS， UHS和VHS中的对应对象配对。然后我们在得到的彩色图上搜索白矮星、褐矮星和亚矮星的异常值。这导致了16个新矮星的发现，包括2个附近的M矮星（< 30pc），一个可能的年轻L矮星，一个高运动的早期t矮星和3个后期t矮星。这项研究代表着在完成对太阳邻居的普查方面又向前迈进了一步。
In an effort to identify nearby and unusual cold objects in the solar neighborhood, we searched for previously unidentified moving objects using CatWISE2020 proper motion data combined with machine learning methods. We paired the motion candidates with their counterparts in 2MASS, UHS, and VHS. Then we searched for white dwarf, brown dwarf, and subdwarf outliers on the resulting color–color diagrams. This resulted in the discovery of 16 new dwarfs, including 2 nearby M dwarfs (<30 pc), a possible young L dwarf, a high-motion early-T dwarf, and 3 later-T dwarfs. This research represents a step forward in completing the census of the Sun’s neighbors.