TY - JOUR
T1 - Exoplanets in the Antarctic sky. III. Stellar flares Found by AST3-II (CHESPA) within the southern CVZ of TESS
AU - Liang, En-Si
AU - Zhang, Hui
AU - Yu, Zhouyi
AU - Yang, Ming
AU - Zhou, Ji-lin
AU - Ashley, Michael C. B.
AU - Cui, Xiangqun
AU - Du, Fujia
AU - Fu, Jianning
AU - Gong, Xuefei
AU - Gu, Bozhong
AU - Hu, Lei
AU - Hu, Yi
AU - Jiang, Peng
AU - Liu, Huigen
AU - Lawrence, Jon
AU - Liu, Qiang
AU - Li, Xiaoyan
AU - Li, Zhengyang
AU - Ma, Bin
AU - Mould, Jeremy
AU - Shang, Zhaohui
AU - Sun, Tianrui
AU - Suntzeff, Nicholas B.
AU - Tao, Charling
AU - Tian, Qiguo
AU - Tinney, C. G.
AU - Uddin, Syed A.
AU - Wang, Lifan
AU - Wang, Songhu
AU - Wang, Xiaofeng
AU - Wei, Peng
AU - Wright, Duncan
AU - Wu, Xuefeng
AU - Wittenmyer, Robert A.
AU - Xu, Lingzhe
AU - Yang, Shihai
AU - Yu, Ce
AU - Yuan, Xiangyan
AU - Zheng, Jessica
AU - Zhou, Hongyan
AU - Zhu, Zhenxi
N1 - Copyright 2020 The American Astronomical Society. First published in The Astronomical Journal, 159(5), 201, 2020. The original publication is available at https://doi.org/10.3847/1538-3881/ab7ea8, published by IOP Publishing. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.
PY - 2020/5/1
Y1 - 2020/5/1
N2 - 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 mi = 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.
AB - 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 mi = 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.
UR - http://www.scopus.com/inward/record.url?scp=85086575789&partnerID=8YFLogxK
U2 - 10.3847/1538-3881/ab7ea8
DO - 10.3847/1538-3881/ab7ea8
M3 - Article
AN - SCOPUS:85086575789
SN - 0004-6256
VL - 159
SP - 1
EP - 12
JO - Astronomical Journal
JF - Astronomical Journal
IS - 5
M1 - 201
ER -