| A Novel Low-frequency Radio Astronomical Observation Array (1 ∼ 90 MHz) and its First Light | |
Yang, Wen-Jun1,2,3; Wang, Zhen1,2,3; Wang, Ming-Yuan4,5; Yan, Fa-Bao6; Lu, Guang6; Gao GN(高冠男)2,7 ; Guo SJ(郭少杰)2,7; Shen, Yu-Mei5; Xu, Bing-Qiang6; Bai, Yu6; Chen, Yong1,2,3; Ping, Jin-Song4,5
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| 发表期刊 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 2023-12-01 | |
| 卷号 | 23期号:12 |
| DOI | 10.1088/1674-4527/acf6b1 |
| 产权排序 | 第7完成单位 |
| 收录类别 | SCI |
| 关键词 | The Sun Astronomical Instrumentation Methods and Techniques Stars Planetary Systems |
| 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. |
| 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 |
| 项目资助者 | 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 |
| 语种 | 英语 |
| 学科领域 | 天文学 |
| 文章类型 | Article |
| 出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| 出版地 | 20A DATUN RD, CHAOYANG, BEIJING, 100101, PEOPLES R CHINA |
| ISSN | 1674-4527 |
| URL | 查看原文 |
| WOS记录号 | WOS:001094215200001 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | HISTORY |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/26434 |
| 专题 | 射电天文研究组 |
| 作者单位 | 1.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011, China; 2.Yunnan Key Laboratory of the Solar Physics and Space Science, Kunming 650216, China; 3.Xinjiang Key Laboratory of Radio Astrophysics, Urumqi 830011, China; 4.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China; 5.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China; 6.Weihai campus, Shandong University, Weihai 264209, China; 7.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, 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). |
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