Zobrazeno 1 - 10
of 148
pro vyhledávání: '"Jian-Yan Wei"'
Autor:
Shao-Yu Fu, Dong Xu, Wei-Hua Lei, Antonio de Ugarte Postigo, D. Alexander Kann, Christina C. Thöne, José Feliciano Agüí Fernández, Yi Shuang-Xi, Wei Xie, Yuan-Chuan Zou, Xing Liu, Shuai-Qing Jiang, Tian-Hua Lu, Jie An, Zi-Pei Zhu, Jie Zheng, Qing-Wen Tang, Peng-Wei Zhao, Li-Ping Xin, Jian-Yan Wei
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 2, p 221 (2024)
We present our optical observations and multiwavelength analysis of the GRB 200613A detected by the Fermi satellite. Time-resolved spectral analysis of the prompt gamma-ray emission was conducted utilizing the Bayesian block method to determine stati
Externí odkaz:
https://doaj.org/article/b0847e816d8b45aa8ecc338de6f9ee5e
Autor:
Guang-Wei Li, Liang Wang, Hai-Long Yuan, Li-Ping Xin, Jing Wang, Chao Wu, Hua-Li Li, Hasitieer Haerken, Wei-Hua Wang, Hong-Bo Cai, Xu-Hui Han, Yang Xu, Lei Huang, Xiao-Meng Lu, Jian-Ying Bai, Xiang-Yu Wang, Zi-Gao Dai, En-Wei Liang, Jian-Yan Wei
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 1, p 114 (2024)
M-type stars are the ones that flare most frequently, but how big their maximum flare energy can reach is still unknown. We present 163 flares from 162 individual M2 through L1-type stars that triggered the GWAC, with flare energies ranging from 10 ^
Externí odkaz:
https://doaj.org/article/f7e4c2d8ebdb4ee2abf599df637e73bd
Autor:
Xin-Bo Huang, Xiang-Gao Wang, Long Li, Li-Ping Xin, Jing Wang, Tian-Ci Zheng, Qi Wang, Hui-Ya Liu, Zi-Min Zhou, Xiao-Meng Lu, Jian-Yan Wei, En-Wei Liang
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 2, p 103 (2024)
We present photometric and spectroscopic observations and analysis of the Type IIb supernova (SN) SN 2019tua, which exhibits multiple bumps in its declining light curves between 40 and 65 days after discovery. SN 2019tua shows a time to peak of about
Externí odkaz:
https://doaj.org/article/f033dc70c4284e4f835b2ccc4820dc86
Autor:
Zi-Pei Zhu, Wei-Hua Lei, Daniele B. Malesani, Shao-Yu Fu, Dong-Jie Liu, Dong Xu, Paolo D’Avanzo, José Feliciano Agüí Fernández, Johan P. U. Fynbo, Xing Gao, Ana Nicuesa Guelbenzu, Shuai-Qing Jiang, David Alexander Kann, Sylvio Klose, Jin-Zhong Liu, Xing Liu, Massimiliano De Pasquale, Antonio de Ugarte Postigo, Bringfried Stecklum, Christina Thöne, Joonas Kari Markku Viuho, Yi-Nan Zhu, Jin-Da Li, He Gao, Tian-Hua Lu, Shuo Xiao, Yuan-Chuan Zou, Li-Ping Xin, Jian-Yan Wei
Publikováno v:
The Astrophysical Journal, Vol 959, Iss 2, p 118 (2023)
High-redshift gamma-ray bursts (GRBs) are useful to probe the early Universe, but only a few candidates have been detected so far. Here, we report the optical and near-infrared observations of the afterglow of a relatively high-redshift event GRB 220
Externí odkaz:
https://doaj.org/article/08a0c14aaa694c88b18e7794b82c8139
Autor:
Hua-Li Li, Jing Wang, Li-Ping Xin, Jian-Ying Bai, Xu-Hui Han, Hong-Bo Cai, Lei Huang, Xiao-Meng Lu, Yu-Lei Qiu, Chao Wu, Guang-Wei Li, Jing-Song Deng, Da-Wei Xu, Yuan-Gui Yang, Xiang-Gao Wang, En-Wei Liang, Jian-Yan Wei
Publikováno v:
The Astrophysical Journal, Vol 954, Iss 2, p 142 (2023)
Stellar white-light flares are believed to play an essential role in the physical and chemical properties of the atmosphere of the surrounding exoplanets. Here we report an optical monitoring campaign on the nearby flaring system EI Cnc carried out b
Externí odkaz:
https://doaj.org/article/628bf3615098453c892db8a022b45ec7
Autor:
Zi-Pei Zhu, Dong Xu, Johan P. U. Fynbo, Shao-Yu Fu, Jun-Bo Zhang, Xing Liu, Shuai-Qing Jiang, Shuo Xiao, Wei Xie, Yuan-Chuan Zou, He Gao, Dieter Hartmann, Antonio de Ugarte Postigo, David Alexander Kann, Massimo Della Valle, Pall Jakobsson, Tayyaba Zafar, Valerio D’Elia, Li-Ping Xin, Jian-Yan Wei, Xing Gao, Jin-Zhong Liu, Tian-Hua Lu, Wei-Hua Lei
Publikováno v:
The Astrophysical Journal, Vol 948, Iss 1, p 30 (2023)
Early optical observations of gamma-ray bursts can significantly contribute to the study of the central engine and physical processes therein. However, of the thousands observed so far, only a few have data at optical wavelengths in the first minutes
Externí odkaz:
https://doaj.org/article/d9098b49e3084d5199335db076df1ca0
Publikováno v:
Software: Practice and Experience. 53:160-175
Autor:
Maohai Huang, Guangwei Li, H. B. Cai, Yulei Qiu, Hua-Li Li, Jing Wang, Y. Xu, Xuhui Han, Jian-Yan Wei, Li-Ping Xin, Chao Wu, L. Huang, Xin Lu
Publikováno v:
Revista Mexicana de Astronomía y Astrofísica Serie de Conferencias. 53:174-179
GWAC will have been built an integrated FOV of 5,000 degree2 and have already built 1,800 square degree2. The limit magnitude of a 10-second exposure image in the moonless night is 16R. In each observation night, GWAC produces about 0.7TB of raw data
Autor:
Guang-Wei Li, Chao Wu, Gui-Ping Zhou, Chen Yang, Hua-Li Li, Jie Chen, Li-Ping Xin, Jing Wang, Hasitieer Haerken, Chao-Hong Ma, Hong-Bo Cai, Xu-Hui Han, Lei Huang, Xiao-Meng Lu, Jian-Ying Bai, Xu-Kang Zhang, Xin-Li Hao, Xiang-Yu Wang, Zi-Gao Dai, En-Wei Liang, Xiao-Feng Meng, Jian-Yan Wei
Publikováno v:
Research in Astronomy and Astrophysics. 23:015016
In the archive of the Ground Wide Angle Camera (GWAC), we found 43 white light flares from 43 stars, among which, three are sympathetic or homologous flares, and one of them also has a quasi-periodic pulsation with a period of $13.0\pm1.5$ minutes. A
Autor:
Lu-Lu Zhang, Li-Ping Xin, Jing Wang, Xu-Hui Han, Dong Xu, Zi-Pei Zhu, Chao Wu, Jian-Yan Wei, En-Wei Liang
Publikováno v:
The Astrophysical Journal. 941:63
Early afterglow observations of gamma-ray bursts (GRBs) are valuable for exploring the properties of their jets and ambient medium. We report our photometric and spectroscopic observations of GRB 210104A and discuss its jet properties with multiwavel