Data release of the AST3-2 automatic survey from Dome A, Antarctica
ABSTRACT AST3-2 is the second of the three Antarctic Survey Telescopes, aimed at wide-field time-domain optical astronomy. It is located at Dome A, Antarctica, which is by many measures the best optical astronomy site on the Earth’s surface. Here we present the data from the AST3-2 automatic survey...
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| Veröffentlicht in: | Mon.Not.Roy.Astron.Soc 2023-02, Vol.520 (4), p.5635-5650 |
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| container_title | Mon.Not.Roy.Astron.Soc |
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| creator | Yang, Xu Hu, Yi Shang, Zhaohui Ma, Bin Ashley, Michael C B Cui, Xiangqun Du, Fujia Fu, Jianning Gong, Xuefei Gu, Bozhong Jiang, Peng Li, Xiaoyan Li, Zhengyang Tao, Charling Wang, Lifan Xu, Lingzhe Yang, Shi-hai Yu, Ce Yuan, Xiangyan Zhou, Ji-lin Zhu, Zhenxi |
| description | ABSTRACT
AST3-2 is the second of the three Antarctic Survey Telescopes, aimed at wide-field time-domain optical astronomy. It is located at Dome A, Antarctica, which is by many measures the best optical astronomy site on the Earth’s surface. Here we present the data from the AST3-2 automatic survey in 2016 and the photometry results. The median 5σ limiting magnitude in i-band is 17.8 mag and the light-curve precision is 4 mmag for bright stars. The data release includes photometry for over 7 million stars, from which over 3500 variable stars were detected, with 70 of them newly discovered. We classify these new variables into different types by combining their light-curve features with stellar properties from surveys such as StarHorse. |
| doi_str_mv | 10.1093/mnras/stad498 |
| format | Article |
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AST3-2 is the second of the three Antarctic Survey Telescopes, aimed at wide-field time-domain optical astronomy. It is located at Dome A, Antarctica, which is by many measures the best optical astronomy site on the Earth’s surface. Here we present the data from the AST3-2 automatic survey in 2016 and the photometry results. The median 5σ limiting magnitude in i-band is 17.8 mag and the light-curve precision is 4 mmag for bright stars. The data release includes photometry for over 7 million stars, from which over 3500 variable stars were detected, with 70 of them newly discovered. 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AST3-2 is the second of the three Antarctic Survey Telescopes, aimed at wide-field time-domain optical astronomy. It is located at Dome A, Antarctica, which is by many measures the best optical astronomy site on the Earth’s surface. Here we present the data from the AST3-2 automatic survey in 2016 and the photometry results. The median 5σ limiting magnitude in i-band is 17.8 mag and the light-curve precision is 4 mmag for bright stars. The data release includes photometry for over 7 million stars, from which over 3500 variable stars were detected, with 70 of them newly discovered. We classify these new variables into different types by combining their light-curve features with stellar properties from surveys such as StarHorse.</abstract><pub>Oxford University Press</pub><doi>10.1093/mnras/stad498</doi><tpages>16</tpages><orcidid>https://orcid.org/0000-0002-6796-124X</orcidid><orcidid>https://orcid.org/0000-0003-4147-8759</orcidid><orcidid>https://orcid.org/0000-0003-3317-4771</orcidid><orcidid>https://orcid.org/0000-0003-2416-4547</orcidid><orcidid>https://orcid.org/0000-0002-3211-3240</orcidid></addata></record> |
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| title | Data release of the AST3-2 automatic survey from Dome A, Antarctica |
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