The Guoshoujing Telescope (the Large Sky Area Multi-Object Fiber Spectroscopic Telescope, LAMOST) is a National Major Scientific Project built by the Chinese Academy of Sciences;provided by the National Development and Reform Commission;National Astronomical Observatories, Chinese Academy of Sciences;supported by grants 11273007 and 10933002 from the National Natural Science Foundation of China;the Joint Research Fund in Astronomy (U1631236) under cooperative agreement between the National Natural Science Foundation of China (NSFC) and Chinese Academy of Sciences (CAS);the Fundamental Research Funds for the Central Universities;Youth Scholars Program of Beijing Normal University
Main sequence turn-off (MSTO) stars since their ages can be robustly estimated from have advantages as indicators of Galactic evolution atmospheric parameters. Hundreds of thousands of MSTO stars have been selected ...