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首页> 外文期刊>The Astrophysical journal >IDENTIFYING HIGH-METALLICITY M GIANTS AT INTRAGROUP DISTANCES WITH SLOAN DIGITAL SKY SURVEY
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IDENTIFYING HIGH-METALLICITY M GIANTS AT INTRAGROUP DISTANCES WITH SLOAN DIGITAL SKY SURVEY

机译:用斯隆数字天空调查识别集团内距离的高失误M

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Tidal stripping and three-body interactions with the central supermassive black hole may eject stars from the Milky Way. These stars would comprise a set of "intragroup" stars that trace the past history of interactions in our galactic neighborhood. Using the Sloan Digital Sky Survey DR7, we identify candidate solar-metallicity red giant intragroup stars using color cuts that are designed to exclude nearby M and L dwarfs. We present 677 intragroup candidates that are selected between 300?kpc and 2?Mpc, and are either the reddest intragroup candidates (M7-M10) or are L dwarfs at larger distances than previously detected.
机译:潮汐剥离以及与中央超大质量黑洞的三体相互作用可能会使银河系中的恒星弹出。这些恒星将包含一组“群内”恒星,这些恒星追踪我们银河系附近区域过去的相互作用历史。使用斯隆数字天空调查DR7,我们使用旨在排除附近M和L矮星的色彩切割来识别候选的太阳金属性红色巨型集团内恒星。我们提供了677个组内候选者,这些候选者在300?kpc和2?Mpc之间进行选择,或者是最红的组内候选者(M7-M10),或者是距离比先前检测到的距离更大的L个矮人。

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