Boulders on asteroid Toutatis as observed by Chang'e-2
文献类型：期刊论文
| 作者 | Jiang, Yun1 ; Ji, Jianghui1; Huang, Jiangchuan2; Marchi, Simone3; Li, Yuan4; Ip, Wing-Huen4,5
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| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2015-11-02 |
| 卷号 | 5 |
| 英文摘要 | Boulders are ubiquitously found on the surfaces of small rocky bodies in the inner solar system and their spatial and size distributions give insight into the geological evolution and collisional history of the parent bodies. Using images acquired by the Chang'e-2 spacecraft, more than 200 boulders have been identified over the imaged area of the near-Earth asteroid Toutatis. The cumulative boulder size frequency distribution (SFD) shows a steep slope of -4.4 +/- 0.1, which is indicative of a high degree of fragmentation. Similar to Itokawa, Toutatis probably has a rubble-pile structure, as most boulders on its surface cannot solely be explained by impact cratering. The significantly steeper slope for Toutatis' boulder SFD compared to Itokawa may imply a different preservation state or diverse formation scenarios. In addition, the cumulative crater SFD has been used to estimate a surface crater retention age of approximately 1.6 +/- 0.3 Gyr. |
| WOS标题词 | Science & Technology |
| 类目[WOS] | Multidisciplinary Sciences |
| 研究领域[WOS] | Science & Technology - Other Topics |
| 关键词[WOS] | EJECTA BLOCKS ; SPIN-STATE ; HAYABUSA ; ITOKAWA ; IMAGES ; CRATER ; IMPACT ; SIZE ; 25143-ITOKAWA ; REGOLITH |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000363878100001 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/16042]  |
| 专题 | 紫金山天文台_行星科学与深空探测实验室 |
| 作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, Key Lab Planetary Sci, Nanjing 210008, Peoples R China 2.China Acad Space Technol, Beijing 100094, Peoples R China 3.Southwest Res Inst, Boulder, CO 80302 USA 4.Macau Univ Sci & Technol, Space Sci Inst, Taipa, Macau, Peoples R China 5.Natl Cent Univ, Inst Astron, Taoyuan, Taiwan |
| 推荐引用方式 GB/T 7714 | Jiang, Yun,Ji, Jianghui,Huang, Jiangchuan,et al. Boulders on asteroid Toutatis as observed by Chang'e-2[J]. SCIENTIFIC REPORTS,2015,5. |
| APA | Jiang, Yun,Ji, Jianghui,Huang, Jiangchuan,Marchi, Simone,Li, Yuan,&Ip, Wing-Huen.(2015).Boulders on asteroid Toutatis as observed by Chang'e-2.SCIENTIFIC REPORTS,5. |
| MLA | Jiang, Yun,et al."Boulders on asteroid Toutatis as observed by Chang'e-2".SCIENTIFIC REPORTS 5(2015). |
入库方式： OAI收割
来源：紫金山天文台
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