Zobrazeno 1 - 10
of 249
pro vyhledávání: '"Chun Qian"'
Autor:
Li, Shan-shan, Li, Chun-qian, Li, Chang-hua, Fan, Dong-wei, Xu, Yun-fei, Mi, Lin-ying, Cui, Chen-zhou, Shi, Jian-rong
We utilize a hybrid approach that integrates the traditional cross-correlation function (CCF) and machine learning to detect spectroscopic multi-systems, specifically focusing on double-line spectroscopic binary (SB2). Based on the ninth data release
Externí odkaz:
http://arxiv.org/abs/2411.14714
Autor:
Li, Chun-qian, Shi, Jian-rong, Yan, Hong-liang, Bai, Zhong-rui, Wang, Jiang-tao, Ding, Ming-yi
Publikováno v:
ApJS (2024), 273, 18
The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) has obtained more than 23 million spectra, opening an unprecedented opportunity to study stellar physics, as well as the formation and evolution of our Milky Way. In order to obta
Externí odkaz:
http://arxiv.org/abs/2407.13134
Autor:
Xie, Xiao-Jin, Shi, Jianrong, Yan, Hong-Liang, Chen, Tian-Yi, Prieto, Carlos Allende, Beers, Timothy C., Liu, Shuai, Li, Chun-Qian, Ding, Ming-Yi, Tang, Yao-Jia, Zhang, Ruizhi, Xie, Renjing
Publikováno v:
ApJL, 2024, Volume 970, Number 2, L30
Highly r-process-enhanced stars are rare and usually metal-poor ([Fe/H] < - 1.0), and mainly populate the Milky Way halo and dwarf galaxies. This study presents the discovery of a relatively bright (V = 12.72), highly r-process-enhanced (r-II) star (
Externí odkaz:
http://arxiv.org/abs/2407.11572
Publikováno v:
Horticulturae, Vol 8, Iss 12, p 1171 (2022)
As a non-toxic, pollution-free, non-residual toxicity, safe, and effective physical method, UV light irradiation can extend the shelf life of fruits, improve the quality of fruits, and conform to the current trend of consumers to pursue green, health
Externí odkaz:
https://doaj.org/article/4d3e5821d61b43bbb2ec85dd97ff7e55
Autor:
Zhang, Jinghua, Xiang, Maosheng, Yu, Jie, Ge, Jian, Xie, Ji-Wei, Zhang, Hui, Li, Yaguang, Wu, You, Li, Chun-Qian, Bi, Shaolan, Yan, Hong-Liang, Shi, Jian-Rong
Accurately characterizing intrinsic stellar photometric noise induced by stellar astrophysics, such as stellar activity, granulation, and oscillations, is of crucial importance for detecting transiting exoplanets. In this study, we investigate the re
Externí odkaz:
http://arxiv.org/abs/2404.13850
Autor:
Ding, Ming-Yi, Shi, Jian-Rong, Yan, Hong-liang, Li, Chun-Qian, Gao, Qi, Chen, Tian-Yi, Zhang, Jing-Hua, Liu, Shuai, Xie, Xiao-Jin, Tang, Yao-Jia, Zhou, Ze-Ming, Wang, Jiang-Tao
Lithium is a fragile but crucial chemical element in the universe, exhibits interesting and complex behaviors. Thanks to the massive spectroscopic data from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) medium-resolution surv
Externí odkaz:
http://arxiv.org/abs/2403.01815
Autor:
Zheng, Ling-Lin, Sun, Mouyuan, Gu, Wei-Min, Yi, Tuan, Zhang, Zhi-Xiang, Wang, Pei, Wang, Junfeng, Wu, Jianfeng, Wang, Song, Zhang, Jia, Li, Chun-Qian, Shi, Jian-Rong, Shao, Yong, Li, Xiang-Dong, Fu, Jin-Bo, Yang, Fan, Bai, Zhongrui, Bai, Yu, Zhang, Haotong, Liu, Jifeng
Recent studies have revealed the global deposition on Earth of radioactive elements (e.g., $^{60}$Fe) resulting from the metal-enriched ejecta of nearby (within $\sim 100$ pc) supernova explosions. The majority of neutron stars in our Solar neighborh
Externí odkaz:
http://arxiv.org/abs/2210.04685
Autor:
Zheng, Ling-Lin, Gu, Wei-Min, Sun, Mouyuan, Zhang, Zhixiang, Yi, Tuan, Wu, Jianfeng, Wang, Junfeng, Fu, Jin-Bo, Qi, Sen-Yu, Yang, Fan, Wang, Song, Wang, Liang, Bai, Zhongrui, Zhang, Haotong, Li, Chun-Qian, Shi, Jian-Rong, Zong, Weikai, Bai, Yu, Liu, Jifeng
We report a single-lined white dwarf-main sequence binary system, LAMOST J172900.17+652952.8, which is discovered by LAMOST's medium resolution time-domain surveys. The radial velocity semi-amplitude and orbital period of the optical visible star are
Externí odkaz:
http://arxiv.org/abs/2209.13924
Autor:
Yi, Tuan, Gu, Wei-Min, Zhang, Zhi-Xiang, Zheng, Ling-Lin, Sun, Mouyuan, Wang, Junfeng, Bai, Zhongrui, Wang, Pei, Wu, Jianfeng, Bai, Yu, Wang, Song, Zhang, Haotong, Dong, Yize, Shao, Yong, Li, Xiang-Dong, Zhang, Jia, Huang, Yang, Yang, Fan, Yu, Qingzheng, Mu, Hui-Jun, Fu, Jin-Bo, Qi, Senyu, Guo, Jing, Fang, Xuan, Zheng, Chuanjie, Li, Chun-Qian, Shi, Jian-Rong, Chen, Huanyang, Liu, Jifeng
Optical time-domain surveys can unveil and characterize exciting but less-explored non-accreting and/or non-beaming neutron stars (NS) in binaries. Here we report the discovery of such a NS candidate using the LAMOST spectroscopic survey. The candida
Externí odkaz:
http://arxiv.org/abs/2209.12141
Autor:
Ding, Ming-Yi, Shi, Jian-Rong, Wu, Yue, Jones, Hugh R. A., Yan, Hong-liang, Li, Chun-Qian, Gao, Qi, Chen, Tian-Yi, Zhang, Jing-Hua, Liu, Shuai, Yan, Tai-Sheng, Xie, Xiao-Jin
The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) Low Resolution Spectroscopic Survey (LRS) provides massive spectroscopic data of M-type stars, and the derived stellar parameters could bring vital help to various studies. We ado
Externí odkaz:
http://arxiv.org/abs/2204.09200