The LEGUE High Latitude Bright Survey Design for the LAMOST Pilot Survey

Abstract

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 $\alpha$= 29${}^{\circ }$, with 10${}^{\circ }$ width in declination, covering right ascension of 135${}^{\circ }-290^{\circ }$ and -30${}^{\circ }$ to 30${}^{\circ }$ 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.

12 pages, 8 figures, accepted for publication in RAA

References in corpus (5)

• LAMOST Experiment for Galactic Understanding and Exploration (LEGUE) The survey science plan
• An Algorithm for Preferential Selection of Spectroscopic Targets in LEGUE
• The selection of LEGUE disk targets for LAMOST's pilot survey
• The site conditions of the Guo Shou Jing Telescope
• The LEGUE Input Catalogue for Dark Night Observing in the LAMOST Pilot Survey

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• Hot Subdwarf Stars Observed in LAMOST DR1 - Atmospheric parameters from single-lined spectra
• Hot subdwarf stars observed in Gaia DR2 and LAMOST DR5
• An Algorithm for Preferential Selection of Spectroscopic Targets in LEGUE
• The selection of LEGUE disk targets for LAMOST's pilot survey
• The site conditions of the Guo Shou Jing Telescope
• The LEGUE Input Catalogue for Dark Night Observing in the LAMOST Pilot Survey
• Hydrogen lines in LAMOST low resolution spectra of RR Lyrae stars
• Fixing the Reference Frame for PPMXL Proper Motions Using Extragalactic Sources