Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL085132 |
The Rocky-Like Behavior of Cometary Landslides on 67P/Churyumov-Gerasimenko | |
Lucchetti, Alice1; Penasa, Luca2; Pajola, Maurizio1; Massironi, Matteo1,2,3; Brunetti, Maria Teresa4; Cremonese, Gabriele1; Oklay, Nilda5; Vincent, Jean-Baptiste5; Mottola, Stefano5; Fornasier, Sonia6; Sierks, Holger7; Naletto, Giampiero2,8,9; Lamy, Philippe L.10,11; Rodrigo, Rafael12,13; Koschny, Detlef14; Davidsson, Bjorn15; Barbieri, Cesare8; Barucci, Maria Antonietta6; Bertaux, Jean-Loup16; Bertini, Ivano8; Bodewits, Dennis17; Cambianica, Pamela2; Da Deppo, Vania9; Debei, Stefano18; De Cecco, Mariolino19; Deller, Jacob7; Ferrari, Sabrina2; Ferri, Francesca2; Franceschi, Marco3; Fulle, Marco20; Gutierrez, Pedro21; Guettler, Carsten7; Ip, Wing-H.22,23; Keller, Uwe5,24; Lara, Luisa21; Lazzarin, Monica8; Lopez Moreno, Jose21; Marzari, Francesco8; Tubiana, Cecilia7 | |
2019-12-27 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Italy; Germany; France; Spain; Switzerland; Netherlands; USA; Taiwan; Peoples R China |
英文摘要 | Landslides have been identified on several solar system bodies, and different mechanisms have been proposed to explain their runout length. We analyze images from the Rosetta mission and report the global characterization of such features on comet 67P/Churyumov-Gerasimenko's surface. By assuming the height to runout length as an approximation for the friction coefficient of landslide material, we find that on comet 67P, this ratio falls between 0.50 and 0.97. Such unexpected high values reveal a rocky-type mechanical behavior that is much more akin to Earth dry landslides than to icy satellites' mass movements. This behavior indicates that 67P and likely comets in general are characterized by consolidated materials possibly rejecting the idea that they are fluffy aggregates. The variability of the runout length among 67P landslides can be attributed to the different volatile content located in the top few meters of the cometary crust, which can drive the mass movement. |
英文关键词 | comet 67P landslides comet surface |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000504538200001 |
WOS关键词 | VALLES-MARINERIS ; WATER ICE ; SURFACE ; MOBILITY ; STURZSTROMS ; AVALANCHES ; MORPHOLOGY ; FRICTION ; MARS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225256 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.INAF, Astron Observ Padua, Padua, Italy; 2.Univ Padua, Ctr Studies & Act Space CISAS G Colombo, Padua, Italy; 3.Univ Padua, Dept Geosci, Padua, Italy; 4.Italian Natl Res Council, Res Inst Geohydrol Protect, Perugia, Italy; 5.Deutsch Zentrum Luft & Raumfahrt DLR, Inst Planetenforsch, Berlin, Germany; 6.Sorbonne Univ, Univ Paris Diderot, Univ PSL, Sorbonne Paris Cite,CNRS,LESIA,Observ Paris, Meudon, France; 7.Max Planck Inst Solar Syst Res, Gottingen, Germany; 8.Univ Padua, Dept Phys & Astron Galileo Galilei, Padua, Italy; 9.CNR, IFN, UOS Padua LUXOR, Padua, Italy; 10.CNRS, UMR 7326, Lab Astrophys Marseille, Marseille 13, France; 11.Aix Marseille Univ, Marseille 13, France; 12.CSIC, INTA, Ctr Astrobiol, Madrid, Spain; 13.Int Space Sci Inst, Bern, Switzerland; 14.ESA, European Space Res & Technol Ctr, Sci Support Off, Noordwijk, Netherlands; 15.Jet Prop Lab, Pasadena, CA USA; 16.UVSQ, CNRS, IPSL, LATMOS, Guyancourt, France; 17.Auburn Univ, Phys Dept, Auburn, AL 36849 USA; 18.Univ Padua, Dept Ind Engn, Padua, Italy; 19.Univ Trento, Fac Engn, Trento, Italy; 20.INAF, Astron Observ Trieste, Trieste, Italy; 21.CSIC, Inst Astrofis Andalucia, Granada, Spain; 22.Natl Cent Univ, Grad Inst Astron, Chungli, Taiwan; 23.Macau Univ Sci & Technol, Space Sci Inst, Taipa, Macao, Peoples R China; 24.Tech Univ Carolo Wilhelmina Braunschweig, Inst Geophys & Extraterr Phys, Braunschweig, Germany |
推荐引用方式 GB/T 7714 | Lucchetti, Alice,Penasa, Luca,Pajola, Maurizio,et al. The Rocky-Like Behavior of Cometary Landslides on 67P/Churyumov-Gerasimenko[J]. GEOPHYSICAL RESEARCH LETTERS,2019. |
APA | Lucchetti, Alice.,Penasa, Luca.,Pajola, Maurizio.,Massironi, Matteo.,Brunetti, Maria Teresa.,...&Tubiana, Cecilia.(2019).The Rocky-Like Behavior of Cometary Landslides on 67P/Churyumov-Gerasimenko.GEOPHYSICAL RESEARCH LETTERS. |
MLA | Lucchetti, Alice,et al."The Rocky-Like Behavior of Cometary Landslides on 67P/Churyumov-Gerasimenko".GEOPHYSICAL RESEARCH LETTERS (2019). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论