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

doi:10.1088/1674-4527/acf6b1

	A Novel Low-frequency Radio Astronomical Observation Array (1 ∼ 90 MHz) and its First Light
	Yang, Wen-Jun 1,4,5; Wang, Zhen 1,4,5; Wang, Ming-Yuan 2,3; Yan, Fa-Bao 7; Lu, Guang 7; Gao GN(高冠男)5,6; Guo SJ(郭少杰)5,6; Shen, Yu-Mei 2; Xu, Bing-Qiang 7; Bai, Yu 7
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2023-12-01
卷号	23 期号:12
关键词	The Sun Astronomical Instrumentation Methods and Techniques Stars Planetary Systems
ISSN号	1674-4527
DOI	10.1088/1674-4527/acf6b1
产权排序	第7完成单位
文献子类	Article
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.
学科主题	天文学
URL标识	查看原文
出版地	20A DATUN RD, CHAOYANG, BEIJING, 100101, PEOPLES R CHINA
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关键词	HISTORY
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
WOS记录号	WOS:001094215200001
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[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
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/26434]
专题	云南天文台_射电天文研究组
作者单位	1.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, China; 2.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China; 3.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China; 4.Xinjiang Key Laboratory of Radio Astrophysics, Urumqi 830011, China; 5.Yunnan Key Laboratory of the Solar Physics and Space Science, Kunming 650216, China; 6.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China 7.Weihai campus, Shandong University, Weihai 264209, 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).
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).
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).