OGLE-II high proper motion stars towards the Galactic Centre
OGLE-II high proper motion stars towards the Galactic Centre
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DOI：
10.1111/j.1365-2966.2008.12878.x
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发表时间：
2007-12
影响因子：
4.8
通讯作者：
N. Rattenbury;S. Mao
中科院分区：
文献类型：
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作者：
N. Rattenbury;S. Mao
OGLE微透镜实验第二阶段的测光数据库OGLE-II是关于银河系运动学和结构的丰富信息来源。在这项工作中，我们使用OGLE-II自行目录，以确定候选星具有高自行。对OGLE-II自行星表（Sumi et al.2004）中的521颗自行量> 50 masyr 1的恒星进行了交叉识别，并与DENIS和2 MASS红外测光星表中的恒星进行了对比。测光距离计算的恒星颜色一致的G/K和M型星。有6颗恒星被新确认为可能的近（< 50 pc）M矮星。
The photometry data base of the second phase of the OGLE microlensing experiment, OGLE-II, is a rich source of information about the kinematics and structure of the Galaxy. In this work we use the OGLE-II proper motion catalogue to identify candidate stars which have high proper motions. 521 stars with proper motion � > 50 masyr 1 in the OGLE-II proper motion catalogue (Sumi et al. 2004) were cross-identified with stars in the MACHO high proper motion catalogue, and the DENIS and 2MASS infra-red photometry catalogues. Photometric distances were computed for stars with colours consistent with G/K and M type stars. 6 stars were newly identified as possible nearby (< 50 pc) M dwarfs.