Zobrazeno 1 - 10
of 212
pro vyhledávání: '"Zhang, Haotong"'
The dependence of stellar magnetic activity on stellar parameters would be inspired by the chromospheric activity studies based on the large-scale spectroscopic surveys. The Ca II H and K lines are employed to construct indicators for assessing and s
Externí odkaz:
http://arxiv.org/abs/2405.10047
Autor:
JUST Team, Liu, Chengze, Zu, Ying, Feng, Fabo, Li, Zhaoyu, Yu, Yu, Bai, Hua, Cui, Xiangqun, Gu, Bozhong, Gu, Yizhou, Han, Jiaxin, Hou, Yonghui, Hu, Zhongwen, Ji, Hangxin, Jing, Yipeng, Li, Wei, Qi, Zhaoxiang, Tan, Xianyu, Tian, Cairang, Yang, Dehua, Yuan, Xiangyan, Zhai, Chao, Zhang, Congcong, Zhang, Jun, Zhang, Haotong, Zhang, Pengjie, Zhang, Yong, Zhao, Yi, Zheng, Xianzhong, Zhu, Qingfeng, Yang, Xiaohu
The Jiao Tong University Spectroscopic Telescope (JUST) is a 4.4-meter f/6.0 segmentedmirror telescope dedicated to spectroscopic observations. The JUST primary mirror is composed of 18 hexagonal segments, each with a diameter of 1.1 m. JUST provides
Externí odkaz:
http://arxiv.org/abs/2402.14312
Autor:
Huang, Xin, He, Yu-JI, Bai, ZhongRui, Yuan, Hailong, Yang, MingKuan, Zhou, Ming, Dong, Yiqiao, Wang, Mengxin, He, Han, Zhang, Jinghua, Chu, Yao-Quan, Zhao, Yongheng, Zhang, Yong, Zhang, Haotong
We have established and released a new stellar index library of the Ca II Triplet, which serves as an indicator for characterizing the chromospheric activity of stars. The library is based on data from the Large Sky Area Multi-Object Fiber Spectrosco
Externí odkaz:
http://arxiv.org/abs/2311.03120
Autor:
Wang, Qianxu, Zhang, Haotong, Deng, Congyue, You, Yang, Dong, Hao, Zhu, Yixin, Guibas, Leonidas
Humans demonstrate remarkable skill in transferring manipulation abilities across objects of varying shapes, poses, and appearances, a capability rooted in their understanding of semantic correspondences between different instances. To equip robots w
Externí odkaz:
http://arxiv.org/abs/2310.16838
Autor:
Yuan, Hailong, Li, Zhenwei, Bai, Zhongrui, Dong, Yiqiao, Cheng, Yao, Chen, Xuefei, Zhixiang, Zhang, Wang, Mengxin, Yang, Mingkuan, Huang, Xin, He, Yuji, Zhang, Liyun, Wang, Junfeng, Zhao, Yongheng, Chu, Yaoquan, Zhang, Haotong
Double white dwarf systems are of great astrophysical importance in the field of gravitational wave and Type Ia supernova. While the binary fraction of CO core white dwarf is about a few percents, the extremely low mass white dwarfs are all thought t
Externí odkaz:
http://arxiv.org/abs/2310.04108
RNN-based methods have faced challenges in the Long-term Time Series Forecasting (LTSF) domain when dealing with excessively long look-back windows and forecast horizons. Consequently, the dominance in this domain has shifted towards Transformer, MLP
Externí odkaz:
http://arxiv.org/abs/2308.11200
Autor:
Zhao, Xinlin, Mu, Huijun, Wang, Song, Li, Xue, Liu, Junhui, Huang, Bowen, Gu, Weimin, Wang, Junfeng, Yi, Tuan, Zhang, Zhixiang, Yuan, Haibo, Bai, Zhongrui, Yuan, Hailong, Zhang, Haotong, Liu, Jifeng
Gaia DR3 mission has identified and provided about 440,000 binary systems with orbital solutions, offering a valuable resource for searching binaries including a compact component. By combining the Gaia DR3 data with radial velocities (RVs) from the
Externí odkaz:
http://arxiv.org/abs/2308.03255
Publikováno v:
Astrophysics and Space Science (2023) 368: 63
The distribution of stellar $\mathrm{H}\alpha$ chromospheric activity with respect to stellar atmospheric parameters (effective temperature $T_\mathrm{eff}$, surface gravity $\log\,g$, and metallicity $\mathrm{[Fe/H]}$) and main-sequence/giant catego
Externí odkaz:
http://arxiv.org/abs/2307.11431
Autor:
Yuan, Hailong, Wang, Song, Bai, Zhongrui, Wang, Yue, Dong, Yiqiao, Wang, Mengxin, Yu, Sicheng, Zhao, Yongheng, Chu, Yaoquan, Liu, Jifeng, Zhang, Haotong
Publikováno v:
ApJ, 940(2), 2022, 165
We report the discovery of one possible neutron star binary ($P_{\rm orb} =$ 0.8666 day) by using the LAMOST low-resolution spectroscopic data. The visible companion is a late A-type dwarf ($T_{\rm eff} = 7900 \pm 200$ K; log$g$ $=$ 4.3$\pm$0.2; $M =
Externí odkaz:
http://arxiv.org/abs/2210.09987
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