The LEGUE disk targets for LAMOST's pilot survey
The LEGUE disk targets for LAMOST's pilot survey
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DOI：
10.1088/1674-4527/12/7/008
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发表时间：
2012-06
影响因子：
1.8
通讯作者：
Li Chen;J. Hou;Jincheng Yu;Chao Liu;L. Deng;H. Newberg;J. Carlin;Fan Yang;Yueyang Zhang;S. Shen;Haotong Zhang;Jian-Jun Chen;Yuqing Chen;N. Christlieb;Zhanwen Han;Hsutai Lee;Xiaowei Liu;K. Pan;Jian-rong Shi;Hongchi Wang;Zi Zhu
中科院分区：
文献类型：
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作者：
Li Chen;J. Hou;Jincheng Yu;Chao Liu;L. Deng;H. Newberg;J. Carlin;Fan Yang;Yueyang Zhang;S. Shen;Haotong Zhang;Jian-Jun Chen;Yuqing Chen;N. Christlieb;Zhanwen Han;Hsutai Lee;Xiaowei Liu;K. Pan;Jian-rong Shi;Hongchi Wang;Zi Zhu
我们描述了LAMOST试点调查，其目的是测试系统准备的LAMOST光谱调查的低纬度磁盘部分的目标选择算法。我们使用PPMXL天体测量星表，它提供了位置，自行，B/R/I星等（大部分）来自USNO-B和J/H/Ks来自2微米全天巡天（2 MASS）。我们在银道面上选择了沿着8个板块，它们位于0° < α < 67°和42° < δ < 59°的区域内，涵盖了22个已知的年龄不等的疏散星团。相邻的板块可能有一些小的重叠区域。每个板块覆盖半径2.5°的区域，其中心星星（对于沙克-哈特曼引导星）比8等还要亮。对于每个板块，我们创建了一个输入星表，星等范围为11.3 < Imag < 16.3和Bmag，可从PPMXL获得。选择星以满足光纤定位系统的要求，并且在I对B - I色星等图中具有均匀分布。我们的最终输入目录包括12 000个对象的8个板块，可观察到在冬季观测季节从兴隆站的中国国家天文台。
We describe the target selection algorithm for the low latitude disk portion of the LAMOST Pilot Survey, which aims to test systems in preparation for the LAMOST spectroscopic survey. We use the PPMXL astrometric catalog, which provides positions, proper motions, B/R/I magnitudes (mostly) from USNO-B and J/H/Ks from the Two Micron All Sky Survey (2MASS) as well. We chose eight plates along the Galactic plane, in the region 0° < α < 67° and 42° < δ < 59°, which cover 22 known open clusters with a range of ages. Adjacent plates may have some small overlapping area. Each plate covers an area of 2.5° in radius, with its central star (for the Shack-Hartmann guider) brighter than 8th magnitude. For each plate, we create an input catalog in the magnitude range 11.3 < Imag < 16.3 and Bmag available from PPMXL. The stars are selected to satisfy the requirements of the fiber positioning system and have a uniform distribution in the I vs. B — I color-magnitude diagram. Our final input catalog consists of 12 000 objects on each of eight plates that are observable during the winter observing season from the Xinglong Station of the National Astronomical Observatory of China.