Lunar Orbital VLBI Experiment: Motivation, scientific purposes and status
文献类型：期刊论文
| 作者 | Hong, Xiaoyu4; Wu, Weiren5; Liu, Qinghui4; Yu, Dengyun11; Wang, Chi10; Shuai, Tao4; Zhong, Weiye4; Zhu, Renjie4; Xie, Yonghui4; Zhang, Lihua9 |
| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2025-11-14 |
| 卷号 | 69期号:1 |
| 关键词 | space VLBI lunar exploration Moon-Earth baseline |
| ISSN号 | 1674-7348 |
| DOI | 10.1007/s11433-025-2751-2 |
| 产权排序 | 第10完成单位 |
| 文献子类 | Article |
| 英文摘要 | The Lunar Orbital VLBI Experiment (LOVEX) is a scientific component of the Chinese Lunar Exploration Project (CLEP) Chang'E-7. The spaceborne component of LOVEX is implemented onboard the relay satellite QueQiao-2, which was launched on 20 March 2024, and later placed into an elliptical selenocentric orbit. The LOVEX-specific payload consists of an X-band cryogenic receiver, a hydrogen maser frequency standard, and VLBI data formatting and acquisition electronics. Several components of the QueQiao-2 nominal onboard instrumentation, such as the 4.2-m antenna, the data storage device, and the downlink communication system, contribute to the overall spaceborne VLBI instrumentation. This allows us to form a space radio telescope capable of co-observing with Earth-based radio telescopes in VLBI mode. In this space VLBI system, the length of the baseline extends up to approximately 380000 km. This paper presents the LOVEX scientific objectives, architecture, instrumentation, prelaunch tests, in-flight verification and calibration, and the first in-flight detections of interferometric response (fringes) achieved through observations of the quasar AO 0235+164 and the Chang'E-6 orbital module, positioned at the Sun-Earth Lagrange point L2. These initial results demonstrate the successful performance of LOVEX, verifying its capability for both astronomical and spacecraft tracking observations at ultra-long VLBI baselines. |
| 学科主题 | 天文学 |
| URL标识 | 查看原文 |
| 出版地 | 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA |
| WOS关键词 | BASE-LINE INTERFEROMETRY ; GENERAL-RELATIVITY ; SPACE ; RADIOASTRON ; EMISSION ; SUBSTRUCTURE ; PULSARS |
| 资助项目 | Lunar Orbital VLBI Experiment of the Chang'E-7 Mission in the Chinese Lunar Exploration Program; International Talent Program of the Chinese Academy of Sciences[2024PVA0008] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001619523800001 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | Lunar Orbital VLBI Experiment of the Chang'E-7 Mission in the Chinese Lunar Exploration Program ; International Talent Program of the Chinese Academy of Sciences[2024PVA0008] |
| 版本 | 出版稿 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/28744]  |
| 专题 | 云南天文台_射电天文研究组 |
| 通讯作者 | Hong, Xiaoyu |
| 作者单位 | 1.Yunnan Observatory, Chinese Academy of Sciences, Kunming, 650011, China; 2.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, 650011, China 3.Xi’an Institute of Space Ratio Technology, Xi’an, 710100, China; 4.Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai, 200030, China; 5.Lunar Exploration and Space Engineering Center of the China National Space Administration, Beijing, 100048, China; 6.Information Engineering University, Zhengzhou, 450001, China; 7.Beijing Aerospace Control Center, Beijing, 100094, China; 8.Beijing Institute of Tracking and Telecommunications Technology, Beijing, 100094, China; 9.DFH Satellite Co., Ltd., Beijing, 100094, China; 10.National Space Science Center, Chinese Academy of Sciences, Beijing, 100190, China; |
| 推荐引用方式 GB/T 7714 | Hong, Xiaoyu,Wu, Weiren,Liu, Qinghui,et al. Lunar Orbital VLBI Experiment: Motivation, scientific purposes and status[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2025,69(1). |
| APA | Hong, Xiaoyu.,Wu, Weiren.,Liu, Qinghui.,Yu, Dengyun.,Wang, Chi.,...&Ye, Shuhua.(2025).Lunar Orbital VLBI Experiment: Motivation, scientific purposes and status.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,69(1). |
| MLA | Hong, Xiaoyu,et al."Lunar Orbital VLBI Experiment: Motivation, scientific purposes and status".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 69.1(2025). |
入库方式： OAI收割
来源：云南天文台
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