期刊
ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS
卷 93, 期 -, 页码 -出版社
ACAD BRASILEIRA DE CIENCIAS
DOI: 10.1590/0001-3765202120200628
关键词
surveys; telescopes; transients; relativistic processes
资金
- University of Sydney
SiTian is an ambitious ground-based all-sky optical monitoring project developed by the Chinese Academy of Sciences. It aims to detect and monitor optical transients and provide a wealth of data for the study of various celestial phenomena. The project will scan at least 10,000 square degrees of sky with dozens of telescopes and is scheduled to start full scientific operations in 2032.
SiTian is an ambitious ground-based all-sky optical monitoring project, developed by the Chinese Academy of Sciences. The concept is an integrated network of dozens of 1-m-class telescopes deployed partly in China and partly at various other sites around the world. The main science goals are the detection, identification and monitoring of optical transients (such as gravitational wave events, fast radio bursts, supernovae) on the largely unknown timescales of less than 1 day; SiTian will also provide a treasure trove of data for studies of AGN, quasars, variable stars, planets, asteroids, and microlensing events. To achieve those goals, SiTian will scan at least 10,000 square deg of sky every 30 min, down to a detection limit of V approximate to 21 mag. The scans will produce simultaneous light-curves in 3 optical bands. In addition, SiTian will include at least three 4-m telescopes specifically allocated for follow-up spectroscopy of the most interesting targets. We plan to complete the installation of 72 telescopes by 2030 and start full scientific operations in 2032.
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