LAMOST光谱巡天第十一次数据发布第2.0版

LAMOST光谱巡天第十一次数据发布第2.0版，包含了2011年10月24日至2023年6月15日期间LAMOST中/低分辨率巡天观测光谱和星表信息。低分辨率巡天共观测 6,283个天区，共获得了11,931,197条光谱，包括11,570,626条恒星光谱，277,566条星系光谱，83,005条类星体光谱；包含A/F/G/K恒星大气参数信息7,898,024条，M型星及其参数信息926,048条，A型星参数信息661,420条，白矮星信息17,501条，灾变变星572条，星系的星族合成信息28,780行，类星体特征发射线信息19,137行。中分辨率巡天观测共获得2,393个天区内的光谱13,156,050条，其中非时域光谱2,737,394 条，时域光谱10,418,656条。中分辨率恒星参数星表信息共有2,594,070行，其中，非时域观测1,301,8287行，时域观测1,292,242行。

LAMOST Spectroscopic Survey Eleventh Data Release Version 2.0 includes medium/low-resolution survey observation spectra and catalog information from the LAMOST medium/low-resolution surveys conducted between October 24, 2011, and June 15, 2023.

The low-resolution survey observed 6,283 sky areas and obtained a total of 11,931,197 spectra, including 11,570,626 stellar spectra, 277,566 galaxy spectra, and 83,005 quasar spectra. It contains 7,898,024 entries of atmospheric parameters for A/F/G/K stars, 926,048 entries of M-type stars and their parameters, 661,420 entries of A-type star parameters, 17,501 entries of white dwarf information, 572 entries of cataclysmic variables, 28,780 rows of stellar population synthesis information for galaxies, and 19,137 rows of characteristic emission line information for quasars.

The medium-resolution survey obtained 13,156,050 spectra in 2,393 sky areas, including 2,737,394 non-time-domain spectra and 10,418,656 time-domain spectra. The catalog information of medium-resolution stellar parameters has a total of 2,594,070 rows, among which 1,301,827 rows are from non-time-domain observations and 1,292,242 rows from time-domain observations.