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A Novel Low-frequency Radio Astronomical Observation Array (1 ∼ 90 MHz) and its First Light

文献类型：期刊论文

作者Yang, Wen-Jun1,4,6; Wang, Zhen1,4,6; Wang, Ming-Yuan2,5; Yan, Fa-Bao3; Lu, Guang3; Gao, Guan-Nan6,7; Guo, Shao-Jie6,7; Shen, Yu-Mei2; Xu, Bing-Qiang3; Bai, Yu3
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2023-12-01
卷号23期号:12页码:125007
关键词The Sun Astronomical Instrumentation Methods and Techniques Stars Planetary Systems
ISSN号1674-4527
DOI10.1088/1674-4527/acf6b1
产权排序1
英文摘要The extremely low frequency (f < 40 MHz) is a very important frequency band for modern radio astronomy observations. It is also a key frequency band for solar radio bursts, planetary radio bursts, fast radio bursts detected in the lunar space electromagnetic environment, and the Earth's middle and upper atmosphere with low dispersion values. In this frequency band, the solar stellar activity, the early state of the universe, and the radiation characteristics of the planetary magnetosphere and plasma layer can be explored. Since there are few observations with effective spatial resolution in the extremely low frequency, it is highly possible to discover unknown astronomical phenomena on such a band in the future. In conjunction with low frequency radio observation on the far side of the Moon, we initially set up a novel low-frequency radio array in the Qitai station of Xinjiang Astronomical Observatory deep in Tianshan Mountains, Xinjiang, China on 2021 August 23. The array covers an operating frequency range of 1 similar to 90 MHz with a sensitivity of -78 dBm/125kHz, a dynamic range of 72 dB, and a typical gain value of 6 dBi, which can realize unattended all-weather observations. The two antennas due south of the Qitai Low-Frequency Radio Array were put into trial observations on 2021 May 28, and the very quiet electromagnetic environment of the station has been confirmed. So far, many solar radio bursts and other foreign signals have been detected. The results show that this novel low frequency radio array has the advantages of good performance, strong direction, and high antenna efficiency. It can play a unique role in Solar Cycle 25, and has a potential value in prospective collaborative observation between the Earth and space for extremely low frequency radio astronomy.
WOS关键词HISTORY
资助项目Our work has been supported by SKA (No.2020SKA0110300), Yunnan Key Laboratory of the Solar Physics and Space Science (No.YNSPCC202220), The open project of the Key Laboratory in Xinjiang Uygur Autonomous Region of China (No.2023D04058), the National[2020SKA0110300] ; Yunnan Key Laboratory of the Solar Physics and Space Science (No.YNSPCC202220), The open project of the Key Laboratory in Xinjiang Uygur Autonomous Region of China[2023D04058] ; National Natural Science Foundation of China[11941003] ; Xinjiang Uygur Autonomous Region of China for Heaven Lake Hundred-Talent Program
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001094215200001
出版者NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
资助机构Our work has been supported by SKA (No.2020SKA0110300), Yunnan Key Laboratory of the Solar Physics and Space Science (No.YNSPCC202220), The open project of the Key Laboratory in Xinjiang Uygur Autonomous Region of China (No.2023D04058), the National ; Yunnan Key Laboratory of the Solar Physics and Space Science (No.YNSPCC202220), The open project of the Key Laboratory in Xinjiang Uygur Autonomous Region of China ; National Natural Science Foundation of China ; Xinjiang Uygur Autonomous Region of China for Heaven Lake Hundred-Talent Program
源URL[http://ir.xao.ac.cn/handle/45760611-7/5570]  
专题射电天文研究室_行星科学研究组
通讯作者Wang, Zhen; Wang, Ming-Yuan
作者单位1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
3.Shandong Univ, Weihai Campus, Weihai 264209, Peoples R China
4.Xinjiang Key Lab Radio Astrophys, Urumqi 830011, Peoples R China
5.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
6.Yunnan Key Lab Solar Phys & Space Sci, Kunming 650216, Peoples R China
7.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Wen-Jun,Wang, Zhen,Wang, Ming-Yuan,et al. A Novel Low-frequency Radio Astronomical Observation Array (1 ∼ 90 MHz) and its First Light[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2023,23(12):125007.
APA Yang, Wen-Jun.,Wang, Zhen.,Wang, Ming-Yuan.,Yan, Fa-Bao.,Lu, Guang.,...&Ping, Jin-Song.(2023).A Novel Low-frequency Radio Astronomical Observation Array (1 ∼ 90 MHz) and its First Light.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,23(12),125007.
MLA Yang, Wen-Jun,et al."A Novel Low-frequency Radio Astronomical Observation Array (1 ∼ 90 MHz) and its First Light".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 23.12(2023):125007.

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