Exoplanets in the Antarctic Sky. I. The First Data Release of AST3-II (CHESPA) and New Found Variables within the Southern CVZ of TESS
International audience Located at Dome A, the highest point of the Antarctic plateau, the ChineseKunlun station is considered to be one of the best ground-based photometricsites because of its extremely cold, dry, and stable atmosphere(Saunders et al.2009). A target can be monitored from there for o...
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ftunivaixmarseil:oai:HAL:hal-02017057v1 2024-05-12T07:56:35+00:00 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 Centre de Physique des Particules de Marseille (CPPM) Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) 2019 https://hal.science/hal-02017057 https://doi.org/10.3847/1538-4365/aaec0c en eng HAL CCSD info:eu-repo/semantics/altIdentifier/arxiv/1812.11907 info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4365/aaec0c hal-02017057 https://hal.science/hal-02017057 ARXIV: 1812.11907 doi:10.3847/1538-4365/aaec0c INSPIRE: 1718843 Astrophys.J.Suppl. https://hal.science/hal-02017057 Astrophys.J.Suppl., 2019, 240 (2), pp.16. ⟨10.3847/1538-4365/aaec0c⟩ [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] info:eu-repo/semantics/article Journal articles 2019 ftunivaixmarseil https://doi.org/10.3847/1538-4365/aaec0c 2024-04-18T00:34:58Z International audience Located at Dome A, the highest point of the Antarctic plateau, the ChineseKunlun station is considered to be one of the best ground-based photometricsites 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 diurnalinterruption during a polar winter. This makes Kunlun station a perfect site tosearch for short-period transiting exoplanets. Since 2008, an observatory hasbeen built at Kunlun station and three telescopes are working there. Usingthese telescopes, the AST3 project has been carried out over the last six yearswith a search for transiting exoplanets as one of its key programs (CHESPA). Inthe austral winters of 2016 and 2017, a set of target fields in the SouthernCVZ of TESS (Ricker et al. 2009) were monitored by the AST3-II telescope. Inthis paper, we introduce the CHESPA and present the first data releasecontaining photometry of 26,578 bright stars (m_i < 15). The best photometricprecision at the optimum magnitude for the survey is around 2 mmag. Todemonstrate the data quality, we also present a catalog of 221 variables with abrightness variation greater than 5 mmag from the 2016 data. Among thesevariables, 179 are newly identified periodic variables not listed in the AAVSOdatabasea), and 67 are listed in the Candidate Target List(Stassun et al.2017). These variables will require careful attention to avoid false-positivesignals when searching for transiting exoplanets. Dozens of new transitingexoplanet candidates will be also released in a subsequent paper(Zhang et al.2018b). Article in Journal/Newspaper Antarc* Antarctic Aix-Marseille Université: HAL Antarctic Austral Saunders ENVELOPE(-45.316,-45.316,-60.700,-60.700) The Antarctic The Astrophysical Journal Supplement Series 240 2 16 |
institution |
Open Polar |
collection |
Aix-Marseille Université: HAL |
op_collection_id |
ftunivaixmarseil |
language |
English |
topic |
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] |
spellingShingle |
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] 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 |
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] |
description |
International audience Located at Dome A, the highest point of the Antarctic plateau, the ChineseKunlun station is considered to be one of the best ground-based photometricsites 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 diurnalinterruption during a polar winter. This makes Kunlun station a perfect site tosearch for short-period transiting exoplanets. Since 2008, an observatory hasbeen built at Kunlun station and three telescopes are working there. Usingthese telescopes, the AST3 project has been carried out over the last six yearswith a search for transiting exoplanets as one of its key programs (CHESPA). Inthe austral winters of 2016 and 2017, a set of target fields in the SouthernCVZ of TESS (Ricker et al. 2009) were monitored by the AST3-II telescope. Inthis paper, we introduce the CHESPA and present the first data releasecontaining photometry of 26,578 bright stars (m_i < 15). The best photometricprecision at the optimum magnitude for the survey is around 2 mmag. Todemonstrate the data quality, we also present a catalog of 221 variables with abrightness variation greater than 5 mmag from the 2016 data. Among thesevariables, 179 are newly identified periodic variables not listed in the AAVSOdatabasea), and 67 are listed in the Candidate Target List(Stassun et al.2017). These variables will require careful attention to avoid false-positivesignals when searching for transiting exoplanets. Dozens of new transitingexoplanet candidates will be also released in a subsequent paper(Zhang et al.2018b). |
author2 |
Centre de Physique des Particules de Marseille (CPPM) Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
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 |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.science/hal-02017057 https://doi.org/10.3847/1538-4365/aaec0c |
long_lat |
ENVELOPE(-45.316,-45.316,-60.700,-60.700) |
geographic |
Antarctic Austral Saunders The Antarctic |
geographic_facet |
Antarctic Austral Saunders The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Astrophys.J.Suppl. https://hal.science/hal-02017057 Astrophys.J.Suppl., 2019, 240 (2), pp.16. ⟨10.3847/1538-4365/aaec0c⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/arxiv/1812.11907 info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4365/aaec0c hal-02017057 https://hal.science/hal-02017057 ARXIV: 1812.11907 doi:10.3847/1538-4365/aaec0c INSPIRE: 1718843 |
op_doi |
https://doi.org/10.3847/1538-4365/aaec0c |
container_title |
The Astrophysical Journal Supplement Series |
container_volume |
240 |
container_issue |
2 |
container_start_page |
16 |
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1798836716386123776 |