Exoplanets in the Antarctic Sky. I. The First Data Release of AST3-II (CHESPA) and New Found Variables within the Southern CVZ of TESS
Located at Dome A, the highest point of the Antarctic plateau, the Chinese Kunlun station is considered to be one of the best ground-based photometric sites because of its extremely cold, dry, and stable atmosphere(Saunders et al. 2009). A target can be monitored from there for over 40 days without...
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ftdatacite:10.48550/arxiv.1812.11907 2023-05-15T13:53:20+02:00 Exoplanets in the Antarctic Sky. I. The First Data Release of AST3-II (CHESPA) and New Found Variables within the Southern CVZ of TESS Zhang, Hui Yu, Zhouyi Liang, Ensi Yang, Ming Ashley, Michael C. B. Cui, Xiangqun Du, Fujia Fu, Jianning Gong, Xuefei Gu, Bozhong Hu, Yi Jiang, Peng Liu, Huigen Lawrence, Jon Liu, Qiang Li, Xiaoyan Li, Zhengyang Ma, Bin Mould, Jeremy Shang, Zhaohui Suntzeff, Nicholas B. Tao, Charling Tian, Qiguo Tinney, C. G. Uddin, Syed A. Wang, Lifan Wang, Songhu Wang, Xiaofeng Wei, Peng Wright, Duncan Wu, Xuefeng Wittenmyer, Robert A. Xu, Lingzhe Yang, Shi-hai Yu, Ce Yuan, Xiangyan Zheng, Jessica Zhou, Hongyan Zhou, Ji-lin Zhu, Zhenxi 2018 https://dx.doi.org/10.48550/arxiv.1812.11907 https://arxiv.org/abs/1812.11907 unknown arXiv https://dx.doi.org/10.3847/1538-4365/aaec0c arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Instrumentation and Methods for Astrophysics astro-ph.IM Earth and Planetary Astrophysics astro-ph.EP Solar and Stellar Astrophysics astro-ph.SR FOS Physical sciences article-journal Article ScholarlyArticle Text 2018 ftdatacite https://doi.org/10.48550/arxiv.1812.11907 https://doi.org/10.3847/1538-4365/aaec0c 2022-04-01T08:54:03Z Located at Dome A, the highest point of the Antarctic plateau, the Chinese Kunlun station is considered to be one of the best ground-based photometric sites because of its extremely cold, dry, and stable atmosphere(Saunders et al. 2009). A target can be monitored from there for over 40 days without diurnal interruption during a polar winter. This makes Kunlun station a perfect site to search for short-period transiting exoplanets. Since 2008, an observatory has been built at Kunlun station and three telescopes are working there. Using these telescopes, the AST3 project has been carried out over the last six years with a search for transiting exoplanets as one of its key programs (CHESPA). In the austral winters of 2016 and 2017, a set of target fields in the Southern CVZ of TESS (Ricker et al. 2009) were monitored by the AST3-II telescope. In this paper, we introduce the CHESPA and present the first data release containing photometry of 26,578 bright stars (m_i < 15). The best photometric precision at the optimum magnitude for the survey is around 2 mmag. To demonstrate the data quality, we also present a catalog of 221 variables with a brightness variation greater than 5 mmag from the 2016 data. Among these variables, 179 are newly identified periodic variables not listed in the AAVSO databasea), and 67 are listed in the Candidate Target List(Stassun et al. 2017). These variables will require careful attention to avoid false-positive signals when searching for transiting exoplanets. Dozens of new transiting exoplanet candidates will be also released in a subsequent paper(Zhang et al. 2018b). : 42 pages, 23 figures and 4 tables, ApJS accepted Text Antarc* Antarctic DataCite Metadata Store (German National Library of Science and Technology) Antarctic The Antarctic Austral Saunders ENVELOPE(-45.316,-45.316,-60.700,-60.700) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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topic |
Instrumentation and Methods for Astrophysics astro-ph.IM Earth and Planetary Astrophysics astro-ph.EP Solar and Stellar Astrophysics astro-ph.SR FOS Physical sciences |
spellingShingle |
Instrumentation and Methods for Astrophysics astro-ph.IM Earth and Planetary Astrophysics astro-ph.EP Solar and Stellar Astrophysics astro-ph.SR FOS Physical sciences Zhang, Hui Yu, Zhouyi Liang, Ensi Yang, Ming Ashley, Michael C. B. Cui, Xiangqun Du, Fujia Fu, Jianning Gong, Xuefei Gu, Bozhong Hu, Yi Jiang, Peng Liu, Huigen Lawrence, Jon Liu, Qiang Li, Xiaoyan Li, Zhengyang Ma, Bin Mould, Jeremy Shang, Zhaohui Suntzeff, Nicholas B. Tao, Charling Tian, Qiguo Tinney, C. G. Uddin, Syed A. Wang, Lifan Wang, Songhu Wang, Xiaofeng Wei, Peng Wright, Duncan Wu, Xuefeng Wittenmyer, Robert A. Xu, Lingzhe Yang, Shi-hai Yu, Ce Yuan, Xiangyan Zheng, Jessica Zhou, Hongyan Zhou, Ji-lin Zhu, Zhenxi Exoplanets in the Antarctic Sky. I. The First Data Release of AST3-II (CHESPA) and New Found Variables within the Southern CVZ of TESS |
topic_facet |
Instrumentation and Methods for Astrophysics astro-ph.IM Earth and Planetary Astrophysics astro-ph.EP Solar and Stellar Astrophysics astro-ph.SR FOS Physical sciences |
description |
Located at Dome A, the highest point of the Antarctic plateau, the Chinese Kunlun station is considered to be one of the best ground-based photometric sites because of its extremely cold, dry, and stable atmosphere(Saunders et al. 2009). A target can be monitored from there for over 40 days without diurnal interruption during a polar winter. This makes Kunlun station a perfect site to search for short-period transiting exoplanets. Since 2008, an observatory has been built at Kunlun station and three telescopes are working there. Using these telescopes, the AST3 project has been carried out over the last six years with a search for transiting exoplanets as one of its key programs (CHESPA). In the austral winters of 2016 and 2017, a set of target fields in the Southern CVZ of TESS (Ricker et al. 2009) were monitored by the AST3-II telescope. In this paper, we introduce the CHESPA and present the first data release containing photometry of 26,578 bright stars (m_i < 15). The best photometric precision at the optimum magnitude for the survey is around 2 mmag. To demonstrate the data quality, we also present a catalog of 221 variables with a brightness variation greater than 5 mmag from the 2016 data. Among these variables, 179 are newly identified periodic variables not listed in the AAVSO databasea), and 67 are listed in the Candidate Target List(Stassun et al. 2017). These variables will require careful attention to avoid false-positive signals when searching for transiting exoplanets. Dozens of new transiting exoplanet candidates will be also released in a subsequent paper(Zhang et al. 2018b). : 42 pages, 23 figures and 4 tables, ApJS accepted |
format |
Text |
author |
Zhang, Hui Yu, Zhouyi Liang, Ensi Yang, Ming Ashley, Michael C. B. Cui, Xiangqun Du, Fujia Fu, Jianning Gong, Xuefei Gu, Bozhong Hu, Yi Jiang, Peng Liu, Huigen Lawrence, Jon Liu, Qiang Li, Xiaoyan Li, Zhengyang Ma, Bin Mould, Jeremy Shang, Zhaohui Suntzeff, Nicholas B. Tao, Charling Tian, Qiguo Tinney, C. G. Uddin, Syed A. Wang, Lifan Wang, Songhu Wang, Xiaofeng Wei, Peng Wright, Duncan Wu, Xuefeng Wittenmyer, Robert A. Xu, Lingzhe Yang, Shi-hai Yu, Ce Yuan, Xiangyan Zheng, Jessica Zhou, Hongyan Zhou, Ji-lin Zhu, Zhenxi |
author_facet |
Zhang, Hui Yu, Zhouyi Liang, Ensi Yang, Ming Ashley, Michael C. B. Cui, Xiangqun Du, Fujia Fu, Jianning Gong, Xuefei Gu, Bozhong Hu, Yi Jiang, Peng Liu, Huigen Lawrence, Jon Liu, Qiang Li, Xiaoyan Li, Zhengyang Ma, Bin Mould, Jeremy Shang, Zhaohui Suntzeff, Nicholas B. Tao, Charling Tian, Qiguo Tinney, C. G. Uddin, Syed A. Wang, Lifan Wang, Songhu Wang, Xiaofeng Wei, Peng Wright, Duncan Wu, Xuefeng Wittenmyer, Robert A. Xu, Lingzhe Yang, Shi-hai Yu, Ce Yuan, Xiangyan Zheng, Jessica Zhou, Hongyan Zhou, Ji-lin Zhu, Zhenxi |
author_sort |
Zhang, Hui |
title |
Exoplanets in the Antarctic Sky. I. The First Data Release of AST3-II (CHESPA) and New Found Variables within the Southern CVZ of TESS |
title_short |
Exoplanets in the Antarctic Sky. I. The First Data Release of AST3-II (CHESPA) and New Found Variables within the Southern CVZ of TESS |
title_full |
Exoplanets in the Antarctic Sky. I. The First Data Release of AST3-II (CHESPA) and New Found Variables within the Southern CVZ of TESS |
title_fullStr |
Exoplanets in the Antarctic Sky. I. The First Data Release of AST3-II (CHESPA) and New Found Variables within the Southern CVZ of TESS |
title_full_unstemmed |
Exoplanets in the Antarctic Sky. I. The First Data Release of AST3-II (CHESPA) and New Found Variables within the Southern CVZ of TESS |
title_sort |
exoplanets in the antarctic sky. i. the first data release of ast3-ii (chespa) and new found variables within the southern cvz of tess |
publisher |
arXiv |
publishDate |
2018 |
url |
https://dx.doi.org/10.48550/arxiv.1812.11907 https://arxiv.org/abs/1812.11907 |
long_lat |
ENVELOPE(-45.316,-45.316,-60.700,-60.700) |
geographic |
Antarctic The Antarctic Austral Saunders |
geographic_facet |
Antarctic The Antarctic Austral Saunders |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://dx.doi.org/10.3847/1538-4365/aaec0c |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1812.11907 https://doi.org/10.3847/1538-4365/aaec0c |
_version_ |
1766258380729483264 |