The Moon's farside shallow subsurface structure unveiled by Chang'E-4 Lunar Penetrating Radar

被引：160

作者：

Li, Chunlai ^{[1
,2
]}

Su, Yan ^{[1
,2
]}

Pettinelli, Elena ^{[3
]}

Xing, Shuguo ^{[1
]}

Ding, Chunyu ^{[4
]}

Liu, Jianjun ^{[1
,2
]}

Ren, Xin ^{[1
]}

Lauro, Sebastian E. ^{[3
]}

Soldovieri, Francesco ^{[5
]}

Zeng, Xingguo ^{[1
]}

Gao, Xingye ^{[1
]}

Chen, Wangli ^{[1
]}

Dai, Shun ^{[1
]}

Liu, Dawei ^{[1
]}

Zhang, Guangliang ^{[1
]}

Zuo, Wei ^{[1
,2
]}

Wen, Weibin ^{[1
]}

Zhang, Zhoubin ^{[1
]}

Zhang, Xiaoxia ^{[1
]}

Zhang, Hongbo ^{[1
]}

机构：

[1] Chinese Acad Sci, Natl Astron Observ, Key Lab Lunar & Deep Space Explorat, Beijing 100101, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Roma Tre Univ, Math & Phys Dept, I-00146 Rome, Italy

[4] Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai 519000, Peoples R China

[5] CNR, IREA, I-80124 Naples, Italy

来源：

SCIENCE ADVANCES | 2020年 / 6卷 / 09期

基金：

中国国家自然科学基金;

关键词：

ALGORITHMS; MIGRATION; CRATER; MARIA; BASIN;

D O I：

10.1126/sciadv.aay6898

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

On 3 January 2019, China's Chang'E-4 (CE-4) successfully landed on the eastern floor of Von karman crater within the South Pole-Aitken Basin, becoming the first spacecraft in history to land on the Moon's farside. Here, we report the observations made by the Lunar Penetrating Radar (LPR) onboard the Yutu-2 rover during the first two lunar days. We found a signal penetration at the CE-4 landing site that is much greater than that at the CE-3 site. The CE-4 LPR images provide clear information about the structure of the subsurface, which is primarily made of low-loss, highly porous, granular materials with embedded boulders of different sizes; the images also indicate that the top of the mare basal layer should be deeper than 40 m. These results represent the first high-resolution image of a lunar ejecta sequence ever produced and the first direct measurement of its thickness and internal architecture.

引用

页数：8

共 42 条

[1] Lunar ground penetrating radar: Minimizing potential data artifacts caused by signal interaction with a rover body [J].