CATCH: chasing all transients constellation hunters space mission

Autor: Panping Li, Qian-Qing Yin, Zhengwei Li, Lian Tao, Xiangyang Wen, Shuang-Nan Zhang, Liqiang Qi, Juan Zhang, Donghua Zhao, Dalin Li, Xizheng Yu, Qingcui Bu, Wen Chen, Yupeng Chen, Yiming Huang, Yue Huang, Ge Jin, Gang Li, Hongbang Liu, Xiaojing Liu, Ruican Ma, Wenxi Peng, Ruijing Tang, Yusa Wang, Jingyu Xiao, Shaolin Xiong, Sheng Yang, Yanji Yang, Chen Zhang, Tianchong Zhang, Liang Zhang, Xuan Zhang, Haisheng Zhao, Kang Zhao, Qingchang Zhao, Shujie Zhao, Xing Zhou
Rok vydání: 2023
Předmět:
Zdroj: Experimental Astronomy. 55:447-486
ISSN: 1572-9508
0922-6435
DOI: 10.1007/s10686-022-09879-0
Popis: In time-domain astronomy, a substantial number of transients will be discovered by multi-wavelength and multi-messenger observatories, posing a great challenge for follow-up capabilities. We have thus proposed an intelligent X-ray constellation, the Chasing All Transients Constellation Hunters (CATCH) space mission. Consisting of 126 micro-satellites in three types, CATCH will have the capability to perform follow-up observations for a large number of different types of transients simultaneously. Each satellite in the constellation will carry lightweight X-ray optics and use a deployable mast to increase the focal length. The combination of different optics and detector systems enables different types of satellites to have multiform observation capabilities, including timing, spectroscopy, imaging, and polarization. Controlled by the intelligent system, different satellites can cooperate to perform uninterrupted monitoring, all-sky follow-up observations, and scanning observations with a flexible field of view (FOV) and multi-dimensional observations. Therefore, CATCH will be a powerful mission to study the dynamic universe. Here, we present the current design of the spacecraft, optics, detector system, constellation configuration and observing modes, as well as the development plan.
Accepted for publication in Experimental Astronomy. 43 pages, 15 figures, 4 tables
Databáze: OpenAIRE
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