Vol 15, No 8 (2015) / Luo

The first data release (DR1) of the LAMOST regular survey

A-Li Luo, Yong-Heng Zhao, Gang Zhao, Li-Cai Deng, Xiao-Wei Liu, Yi-Peng Jing, Gang Wang, Hao-Tong Zhang, Jian-Rong Shi, Xiang-Qun Cui, Yao-Quan Chu, Guo-Ping Li, Zhong-Rui Bai, Yue Wu, Yan Cai, Shu-Yun Cao, Zi-Huang Cao, Jeffrey L. Carlin, Hai-Yuan Chen, Jian-Jun Chen, Kun-Xin Chen, Li Chen, Xue-Lei Chen, Xiao-Yan Chen, Ying Chen, Norbert Christlieb, Jia-Ru Chu, Chen-Zhou Cui, Yi-Qiao Dong, Bing Du, Dong-Wei Fan, Lei Feng, Jian-Ning Fu, Peng Gao, Xue-Fei Gong, Bo-Zhong Gu, Yan-Xin Guo, Zhan-Wen Han, Bo-Liang He, Jin-Liang Hou, Yong-Hui Hou, Wen Hou, Hong-Zhuan Hu, Ning-Sheng Hu, Zhong-Wen Hu, Zhi-Ying Huo, Lei Jia, Fang-Hua Jiang, Xiang Jiang, Zi-Bo Jiang, Ge Jin, Xiao Kong, Xu Kong, Ya-Juan Lei, Ai-Hua Li, Chang-Hua Li, Guang-Wei Li, Hai-Ning Li, Jian Li, Qi Li, Shuang Li, Sha-Sha Li, Xin-Nan Li, Yan Li, Yin-Bi Li, Ye-Ping Li, Yuan Liang, Chien-Cheng Lin, Chao Liu, Gen-Rong Liu, Guan-Qun Liu, Zhi-Gang Liu, Wen-Zhi Lu, Yu Luo, Yin-Dun Mao, Heidi Newberg, Ji-Jun Ni, Zhao-Xiang Qi, Yong-Jun Qi, Shi-Yin Shen, Huo-Ming Shi, Jing Song, Yi-Han Song, Ding-Qiang Su, Hong-Jun Su, Zheng-Hong Tang, Qing-Sheng Tao, Yuan Tian, Dan Wang, Da-Qi Wang, Feng-Fei Wang, Guo-Min Wang, Hai Wang, Hong-Chi Wang, Jian Wang, Jia-Ning Wang, Jian-Ling Wang, Jian-Ping Wang, Jun-Xian Wang, Lei Wang, Meng-Xin Wang, Shou-Guan Wang, Shu-Qing Wang, Xia Wang, Ya-Nan Wang, You Wang, Yue-Fei Wang, You-Fen Wang, Peng Wei, Min-Zhi Wei, Hong Wu, Ke-Fei Wu, Xue-Bing Wu, Yu-Zhong Wu, Xiao-Zheng Xing, Ling-Zhe Xu, Xin-Qi Xu, Yan Xu, Tai-Sheng Yan, De-Hua Yang, Hai-Feng Yang, Hui-Qin Yang, Ming Yang, Zheng-Qiu Yao, Yong Yu, Hui Yuan, Hai-Bo Yuan, Hai-Long Yuan, Wei-Min Yuan, Chao Zhai, En-Peng Zhang, Hua-Wei Zhang, Jian-Nan Zhang, Li-Pin Zhang, Wei Zhang, Yong Zhang, Yan-Xia Zhang, Zheng-Chao Zhang, Ming Zhao, Fang Zhou, Xu Zhou, Yong-Tian Zhu, Si-Cheng Zou, Fang Zuo

Abstract

The Large sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) general survey is a spectroscopic survey that will eventually cover approximately half of the celestial sphere and collect 10 million spectra of stars, galaxies and QSOs. Objects in both the pilot survey and the first year regular survey are included in the LAMOST DR1. The pilot survey started in October 2011 and ended in June 2012, and the data have been released to the public as the LAMOST Pilot Data Release in August 2012. The regular survey started in September 2012, and completed its first year of operation in June 2013. The LAMOST DR1 includes a total of 1202 plates containing 2 955 336 spectra, of which 1 790 879 spectra have observed signal-to-noise ratio (SNR) ≥ 10. All data with SNR ≥ 2 are formally released as LAMOST DR1 under the LAMOST data policy. This data release contains a total of 2 204 696 spectra, of which 1 944 329 are stellar spectra, 12 082 are galaxy spectra and 5017 are quasars. The DR1 not only includes spectra, but also three stellar catalogs with measured parameters: late A,FGK-type stars with high quality spectra (1 061 918 entries), A-type stars (100 073 entries), and M-type stars (121 522 entries). This paper introduces the survey design, the observational and instrumental limitations, data reduction and analysis, and some caveats. A description of the FITS structure of spectral files and parameter catalogs is also provided.


Keywords


techniques: spectroscopic survey — data release — catalog

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DOI: https://doi.org/10.1088/1674–4527/15/8/002

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