globalchange  > 气候减缓与适应
DOI: 10.1002/2013GL058914
论文题名:
Morphology of asteroid (4179) Toutatis as imaged by Chang'E-2 spacecraft
作者: Zhu M.-H.; Fa W.; Ip W.-H.; Huang J.; Liu T.; Meng L.; Yan J.; Xu A.; Tang Z.; Wang X.; Qiao D.
刊名: Geophysical Research Letters
ISSN: 0094-10477
EISSN: 1944-10208
出版年: 2014
卷: 41, 期:2
起始页码: 328
结束页码: 333
语种: 英语
英文关键词: Asteroid (4179) Toutatis ; Chang'E-2 Spacecraft ; Contact-Binary Asteroid ; Rubble-Pile Asteroid
Scopus关键词: Piles ; Spacecraft ; Surfaces ; Attenuation of shock waves ; Contact binaries ; Impact craters ; Porous targets ; Scaling relations ; Seismic shaking ; South pole ; Surface feature ; Asteroids ; asteroid ; catastrophic event ; crater ; diameter ; resetting ; shaking table test ; spacecraft
英文摘要: Close observations by the Chang'E-2 spacecraft reveal that the surface of asteroid (4179) Toutatis is characterized by abundant impact craters with most of them being degraded by surface resetting. The less degraded large crater with a diameter of ∼800 m at the south pole is estimated to be produced by an impactor with a diameter of ∼50 m from strength crater scaling relations. From the analysis of large-impact events on highly porous targets, we argue that Toutatis is likely a rubble-pile body and its two lobes are contact binaries. The fact that Toutatis suffered plenty of impacts with seismic shaking resetting the initial surface features but not resulting in catastrophic disruption is probably because of the material's high attenuation of shock wave. ©2014. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84893182880&doi=10.1002%2f2013GL058914&partnerID=40&md5=aa9a6e3b1e3142ee7f4c0a8033f9f905
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7741
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作者单位: Space Science Institute, Macau University of Science and Technology, Taipa, Macau

Recommended Citation:
Zhu M.-H.,Fa W.,Ip W.-H.,et al. Morphology of asteroid (4179) Toutatis as imaged by Chang'E-2 spacecraft[J]. Geophysical Research Letters,2014-01-01,41(2).
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