月球轨道 VLBI 实验：动机、科学目的与现状
天体物理仪器与方法
2025-11-27 v1
摘要
月球轨道 VLBI 实验（LOVEX）是中国探月工程（CLEP）嫦娥七号的一个科学组成部分。LOVEX 的星载部分在鹊桥二号中继卫星上实现，该卫星于2024年3月20日发射，随后被置入椭圆绕月轨道。LOVEX 专用有效载荷包括 X 波段低温接收机、氢原子钟频率标准以及 VLBI 数据格式化与采集电子设备。鹊桥二号星载常规仪器的若干组件，如4.2米天线、数据存储设备和下行通信系统，共同构成了完整的星载 VLBI 设备。这使我们能够形成一台空间射电望远镜， capable of co-observing with Earth-based radio telescopes in VLBI mode. 在该空间 VLBI 系统中，基线长度最长可达约380,000公里。本文介绍了 LOVEX 的科学目标、架构、仪器设备、发射前测试、在轨验证与校准，以及通过对类星体 AO 0235+164 和位于日地拉格朗日 L2 点的嫦娥六号轨道模块进行观测，首次实现在轨探测到干涉响应（“条纹”）。这些初步结果证明了 LOVEX 的成功性能，验证了其在超长 VLBI 基线下进行天文和航天器跟踪观测的能力。
关键词
引用
@article{arxiv.2507.16317,
title = {Lunar Orbital VLBI Experiment: motivation, scientific purposes and status},
author = {Xiaoyu Hong and Weiren Wu and Qinghui Liu and Dengyun Yu and Chi Wang and Tao Shuai and Weiye Zhong and Renjie Zhu and Yonghui Xie and Lihua Zhang and Liang Xiong and Yuhua Tang and Yongliao Zou and Haitao Li and Guangli Wang and Jianfeng Xie and Changbin Xue and Hao Geng and Juan Zhang and Xiaojing Wu and Yong Huang and Weimin Zheng and Lei Liu and Fang Wu and Xiuzhong Zhang and Tao An and Xiaolong Yang and Fengxian Tong and Leonid I. Gurvits and Yong Zheng and Minfeng Gu and Xiaofei Ma and Liang Li and Peijia Li and Shanshan Zhao and Ping Rui and Luojing Chen and Guohui Chen and Ke Li and Chao Zhang and Yuanqi Liu and Yongchen Jiang and Jinqing Wang and Wenbin Wang and Yan Sun and Longfei Hao and Lang Cui and Dongrong Jiang and Zhihan Qian and Shuhua Ye},
journal= {arXiv preprint arXiv:2507.16317},
year = {2025}
}
备注
Accepted for publication in Science China: Physics, Mechanics & Astronomy