Compositional variations along the route of Chang’e-3 Yutu rover revealed by the lunar penetrating radar
文献类型：期刊论文
| 作者 | Ding,Chunyu1,5; Xiao,Zhiyong2,5,6; Su,Yan1,3; Zhao,Jiannan4; Cui,Jun1,2,5 |
| 刊名 | Progress in Earth and Planetary Science
 |
| 出版日期 | 2020-07-27 |
| 卷号 | 7期号:1 |
| 关键词 | Moon Regolith Ground penetrating radar Loss tangent Chang’e-3 |
| DOI | 10.1186/s40645-020-00340-4 |
| 英文摘要 | AbstractUsing the high-frequency lunar penetrating radar data obtained by the Chang’e-3 mission, we apply the frequency-shift method to calculate the decay rate of the electromagnetic wave in the regolith-like ejecta deposits of the Ziwei crater. The radar data are divided into segments according to the navigation points along the traverse route of the Yutu rover. For each segment, we calculate the bulk loss tangent of materials within the top ~ 50 ns of the radar data based on the frequency decreasing rate of the electromagnetic wave. The loss tangent varies from ~ 0.011–0.017 along the route of Yutu, and it is within the range of the measured loss tangent of Apollo regolith samples. Using the empirical relationship between loss tangent and TiO2 + FeO content derived from the Apollo lunar samples, we estimate the TiO2 + FeO content for the bulk regolith along the route of Yutu, which is ~ 23–30 wt.%. This value is comparable with that estimated using both orbital reflectance spectral data and in situ observation made by the Yutu rover. The loss tangent derived along the route of Yutu is larger than the average value of returned lunar samples, which is mainly caused by the larger content of TiO2 + FeO at the landing site compared to the global average. Variations of the TiO2 + FeO content along the route of Yutu are mainly due to the excavation of the Ziwei crater. The TiO2 + FeO content map derived by the radar has a much higher spatial resolution compared to orbital observation, testifying the feasibility of this technique for regional geology study. |
| 语种 | 英语 |
| WOS记录号 | BMC:10.1186/S40645-020-00340-4 |
| 出版者 | Springer Berlin Heidelberg |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/54621]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Xiao,Zhiyong |
| 作者单位 | 1.Chinese Academy of Sciences; Key Laboratory of Lunar and Deep Space Exploration, National Astronomical Observatories 2.Center for Excellence in Comparative Planetology; Chinese Academy of Sciences 3.University of Chinese Academy of Sciences 4.School of Earth Sciences, China University of Geosciences (Wuhan); Planetary Science Institute 5.Sun Yat-sen University; Planetary Environmental and Astrobiological Research Laboratory, School of Atmospheric Sciences 6.Macau University of Science and Technology; State Key Laboratory of Lunar and Planetary Sciences, Space Science Institute |
| 推荐引用方式 GB/T 7714 | Ding,Chunyu,Xiao,Zhiyong,Su,Yan,et al. Compositional variations along the route of Chang’e-3 Yutu rover revealed by the lunar penetrating radar[J]. Progress in Earth and Planetary Science,2020,7(1). |
| APA | Ding,Chunyu,Xiao,Zhiyong,Su,Yan,Zhao,Jiannan,&Cui,Jun.(2020).Compositional variations along the route of Chang’e-3 Yutu rover revealed by the lunar penetrating radar.Progress in Earth and Planetary Science,7(1). |
| MLA | Ding,Chunyu,et al."Compositional variations along the route of Chang’e-3 Yutu rover revealed by the lunar penetrating radar".Progress in Earth and Planetary Science 7.1(2020). |
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来源：国家天文台
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