Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Zhou Yu-tao"'
Autor:
Chen, Zhi-Fu, Qin, Huan-Chang, Cai, Jin-Ting, Zhou, Yu-Tao, Chen, Zhe-Geng, Pang, Ting-Ting, Wang, Zhi-Wen
We have collected 10025 foreground-background quasar pairs with projected distances $d_p<500$ kpc from the large quasar catalog of the SDSS DR16Q. We investigate the properties of the Mg II absorption lines with $W_r>0.15$ \AA\ around foreground quas
Externí odkaz:
http://arxiv.org/abs/2302.12492
Autor:
Zhang, Bo, Jing, Ying-Jie, Yang, Fan, Wan, Jun-Chen, Ji, Xin, Fu, Jian-Ning, Liu, Chao, Zhang, Xiao-Bin, Luo, Feng, Tian, Hao, Zhou, Yu-Tao, Wang, Jia-Xin, Guo, Yan-Jun, Zong, Weikai, Xiong, Jian-Ping, Li, Jiao
We developed a convolutional neural network (CNN) model to distinguish the double-lined spectroscopic binaries (SB2s) from others based on single exposure medium-resolution spectra ($R\sim 7,500$). The training set consists of a large set of mock spe
Externí odkaz:
http://arxiv.org/abs/2112.03818
Autor:
Zhang, Bo, Li, Jiao, Yang, Fan, Xiong, Jian-Ping, Fu, Jian-Ning, Liu, Chao, Tian, Hao, Li, Yin-Bi, Wang, Jia-Xin, Liang, Cai-Xia, Zhou, Yu-Tao, Zong, Wei-kai, Yang, Cheng-Qun, Liu, Nian, Hou, Yong-Hui
Radial velocity (RV) is among the most fundamental physical quantities obtainable from stellar spectra and is rather important in the analysis of time-domain phenomena. The LAMOST Medium-Resolution Survey (MRS) DR7 contains 5 million single-exposure
Externí odkaz:
http://arxiv.org/abs/2105.11624
Autor:
Yan, Hong-Liang, Zhou, Yu-Tao, Zhang, Xianfei, Li, Yaguang, Gao, Qi, Shi, Jian-Rong, Zhao, Gang, Aoki, Wako, Matsuno, Tadafumi, Li, Yan, Xu, Xiao-Dong, Li, Haining, Wu, Ya-Qian, Jin, Meng-Qi, Mosser, Benoît, Bi, Shao-Lan, Fu, Jian-Ning, Pan, Kaike, Suda, Takuma, Liu, Yu-Juan, Zhao, Jing-Kun, Liang, Xi-Long
Lithium has confused scientists for decades at almost each scale of the universe. Lithium-rich giants are peculiar stars with lithium abundances over model prediction. A large fraction of lithium-rich low-mass evolved stars are traditionally supposed
Externí odkaz:
http://arxiv.org/abs/2010.02106
Autor:
Gao, Qi, Shi, Jian-Rong, Yan, Hong-Liang, Yan, Tai-Sheng, Xiang, Mao-Sheng, Zhou, Yu-Tao, Li, Chun-Qian, Zhao, Gang
Standard stellar evolution model predicts a severe depletion of lithium (Li) abundance during the first dredge up process (FDU). Yet a small fraction of giant stars are still found to preserve a considerable amount of Li in their atmospheres after th
Externí odkaz:
http://arxiv.org/abs/1912.08431
Autor:
Huang, Hong-Yan, Pan, Cai-Juan, Lu, Wei-Jian, Qin, Yi-Ping, Lin, Ying-Ru, Huang, Wei-Rong, Zhou, Yu-Tao, Yao, Min, Nong, Wei-Jing, Lu, Mei-Mei, Yao, Zhi-Kao, Han, Qing-Lin
Correlation between the variations of quasar absorption lines and the ionizing continuum have been recently confirmed in systematic studies. However, no convincing individual case is reported. We present a statistical analysis of the variable C iv br
Externí odkaz:
http://arxiv.org/abs/1905.02407
Autor:
Yan, Hong-Liang, Zhang, Jing-Hua, Zhou, Yu-Tao, Gao, Qi, Shi, Jian-Rong, Kumar, Yerra Bharat, Aoki, Wako, Li, Haining, Li, Chunqian, Zhao, Gang
Publikováno v:
In Fundamental Research August 2023
Autor:
Yan, Hong-Liang, Shi, Jian-Rong, Zhou, Yu-Tao, Chen, Yong-Shou, Li, Er-Tao, Zhang, Suyalatu, Bi, Shao-Lan, Wu, Ya-Qian, Li, Zhi-Hong, Guo, Bing, Liu, Wei-Ping, Gao, Qi, Zhang, Jun-Bo, Zhou, Ze-Ming, Li, Hai-Ning, Zhao, Gang
About one percent of giants\upcite{Brown1989} are detected to have anomalously high lithium (Li) abundances in their atmospheres, conflicting directly with the prediction of the standard stellar evolution models\upcite{Iben1967}, and making the produ
Externí odkaz:
http://arxiv.org/abs/1809.00187
Autor:
Xue, Hui-Fang, Fu, Jian-Ning, Fox-Machado, L., Shi, Jian-Rong, Zhou, Yu-Tao, Zhang, Jun-Bo, Michel, R., Yan, Hong-Liang, Niu, Jia-Shu, Zong, Wei-Kai, Su, Jie, Castro, A., Ayala-Loera, C., L, Altamirano-Dévora
Publikováno v:
The Astrophysical Journal, 861:96 (12pp), 2018 July 10
Bi-site time-series photometric and high-resolution spectroscopic observations were made for the double-mode high-amplitude $\delta$ Scuti star VX\ Hya. The fundamental frequency $f_{0}=4.4763\ \rm{c\ days^{-1}}$, the first overtone $f_{1}=5.7897\ \r
Externí odkaz:
http://arxiv.org/abs/1807.00351
Autor:
Li, Li Yue, Zhou, Yu Tao, Sun, Lin, Liu, Xin Yi, Li, Jian, Hong, Yue, Ye, Xiao Yan, Bao, Qing, Meng, Qing Xiang, Wen, Wei Ping, Chen, He Xin, Li, Chun Wei
Publikováno v:
In The Journal of Allergy and Clinical Immunology May 2021 147(5):1966-1973