We describe the footprint and input catalog for bright nights in the LAMOST Pilot Survey, which began in October 2011. Targets are selected from two stripes in the north and south Galactic Cap regions, centered at α= 29∘, with 10∘ width in declination, covering right ascension of 135∘−290∘ and -30∘ to 30∘ respectively. We selected spectroscopic targets from a combination of the SDSS and 2MASS point source catalogs. The catalog of stars defining the field centers (as required by the Shack-Hartmann wavefront sensor at the center of the LAMOST field) consists of all V < 8m stars from the Hipparcos catalog. We employ a statistical selection algorithm that assigns priorities to targets based on their positions in multidimensional color/magnitude space. This scheme overemphasizes rare objects and de-emphasizes more populated regions of magnitude and color phase space, while ensuring a smooth, well-understood selection function. A demonstration of plate design is presented based on the Shack-Hartmann star catalog and an input catalog that was generated by our target selection routines.
@article{arxiv.1206.3575,
title = {The LEGUE High Latitude Bright Survey Design for the LAMOST Pilot Survey},
author = {Yueyang Zhang and Jeffrey L. Carlin and Fan Yang and Chao Liu and Licai Deng and Heidi Jo Newberg and Haotong Zhang and Sebastien Lepine and Yan Xu and Shuang Gao and Norbert Christlieb and Zhanwen Han and Jinliang Hou and Hsutai Lee and Xiaowei Liu and Kaike Pan and Hongchi Wang},
journal= {arXiv preprint arXiv:1206.3575},
year = {2015}
}
Comments
12 pages, 8 figures, accepted for publication in RAA