LAMOST DR4 恒星参数星表 第一版

LAMOST DR4 恒星参数星表 第一版总共发布了LAMOST先导巡天和正式巡天前四年获得的4339831个恒星光谱，包括67204个A型恒星，1385000个F型恒星，2211207个G型恒星以及676420个K型恒星。这些恒星的筛选条件是无月夜g波段信噪比大于6，有月夜g波段信噪比大于15。星表以FITS表格和csv表格两种格式提供。LAMOST DR4 Stellar Parameter Catalog (Version 1) has released a total of 4,339,831 stellar spectra obtained during the LAMOST pilot survey and the first four years of the formal survey, including 67,204 A-type stars, 1,385,000 F-type stars, 2,211,207 G-type stars, and 676,420 K-type stars. The selection criteria for these stars are that the signal-to-noise ratio (SNR) in the g-band is greater than 6 for observations taken on moonless nights, and greater than 15 for observations taken on moonlit nights. This catalog is provided in two formats: FITS table and CSV table.

搜集汇总

背景与挑战

背景概述

该数据集是LAMOST DR4恒星参数星表的第一版，包含4339831个恒星光谱，覆盖A、F、G、K型恒星。数据基于LAMOST先导巡天和前四年正式巡天，筛选条件为g波段信噪比（无月夜大于6，有月夜大于15），以FITS和csv格式提供，适用于天文学研究。