Exoplanets in the Antarctic Sky. III. Stellar Flares Found by AST3-II (CHESPA) within the Southern CVZ of TESS
Article
Article Title | Exoplanets in the Antarctic Sky. III. Stellar Flares Found by AST3-II (CHESPA) within the Southern CVZ of TESS |
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ERA Journal ID | 1048 |
Article Category | Article |
Authors | Liang, En-Si (Author), Zhang, Hui (Author), Yu, Zhouyi (Author), Yang, Ming (Author), Zhou, Ji-lin (Author), Ashley, Michael C. B. (Author), Cui, Xiangqun (Author), Du, Fujia (Author), Fu, Jianning (Author), Gong, Xuefei (Author), Gu, Bozhong (Author), Hu, Lei (Author), Hu, Yi (Author), Jiang, Peng (Author), Liu, Huigen (Author), Lawrence, Jon (Author), Liu, Qiang (Author), Li, Xiaoyan (Author), Li, Zhengyang (Author), Ma, Bin (Author), Mould, Jeremy (Author), Shang, Zhaohui (Author), Sun, Tianrui (Author), Suntzeff, Nicholas B. (Author), Tao, Charling (Author), Tian, Qiguo (Author), Tinney, C. G. (Author), Uddin, Syed A. (Author), Wang, Lifan (Author), Wang, Songhu (Author), Wang, Xiaofeng (Author), Wei, Peng (Author), Wright, Duncan (Author), Wu, Xuefeng (Author), Wittenmyer, Robert A. (Author), Xu, Lingzhe (Author), Yang, Shihai (Author), Yu, Ce (Author), Yuan, Xiangyan (Author), Zheng, Jessica (Author), Zhou, Hongyan (Author) and Zhu, Zhenxi (Author) |
Journal Title | The Astronomical Journal |
Journal Citation | 159 (5), pp. 1-12 |
Article Number | 201 |
Number of Pages | 12 |
Year | 2020 |
Publisher | IOP Publishing |
Place of Publication | United States |
ISSN | 0004-6256 |
1538-3881 | |
Digital Object Identifier (DOI) | https://doi.org/10.3847/1538-3881/ab7ea8 |
Web Address (URL) | https://iopscience.iop.org/article/10.3847/1538-3881/ab7ea8 |
Abstract | The CHinense Exoplanet Searching Program from Antarctica is a ground-based wide-field photometric survey using the AST3 and CSTAR telescopes located at Dome A, Antarctica. Blessed with the unparalleled observing conditions on the highest point of the Antarctic plateau, three remotely controlled, fully automatic telescopes (AST3-I, AST3-II, and CSTAR-II) carried out continuous high-precision photometric surveys through the polar nights of 2016 and 2017. During the observing seasons of 2016, a total of 26,578 light curves were obtained for stars within the area of the southern continuous viewing zone of TESS, covering an i-band magnitude range from 7.5 to 15. At m i = 10, photometric precision reaches ~2 mmag, allowing possible discoveries of sub-Jupiter-size exoplanets. Here we report 20 stellar flares with i-band energies larger than 1034 erg detected in the 2016 data set of AST3-II, all from different sources. We model the stellar flares and calculate the durations, amplitudes, energies, and skewnesses. The flare properties and the stellar properties of their sources are presented in this work. |
Keywords | Stellar flares; Photometry; Astrostatistics Stellaractivity; Astronomy data analysis; Surveys |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | For access to this article, please click on the URL link provided. |
Byline Affiliations | Nanjing University, China |
University of New South Wales | |
Nanjing Institute of Astronomical Optics and Technology, China | |
Beijing Normal University, China | |
Purple Mountain Observatory, China | |
Chinese Center for Antarctic Astronomy, China | |
Polar Research Institute of China, China | |
Macquarie University | |
Chinese Academy of Sciences, China | |
Swinburne University of Technology | |
Texas A&M University, United States | |
Aix-Marseille University, France | |
Carnegie Institution of Washington, United States | |
Yale University, United States | |
Tsinghua University, China | |
Computational Engineering and Science Research Centre | |
Tianjin University, China | |
Australian Astronomical Observatory, Australia | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q62y8/exoplanets-in-the-antarctic-sky-iii-stellar-flares-found-by-ast3-ii-chespa-within-the-southern-cvz-of-tess
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