The landing(s) of Philae and inferences about comet surface mechanical properties

被引：231

作者：

Biele, Jens ^{[1
]}

Ulamec, Stephan ^{[1
]}

Maibaum, Michael ^{[1
]}

Roll, Reinhard ^{[3
]}

Witte, Lars ^{[2
]}

Jurado, Eric ^{[9
]}

Munoz, Pablo ^{[5
,12
]}

Arnold, Walter ^{[10
,11
]}

Auster, Hans-Ulrich ^{[6
]}

Casas, Carlos ^{[5
,12
]}

Faber, Claudia ^{[4
]}

Fantinati, Cinzia ^{[1
]}

Finke, Felix ^{[1
]}

Fischer, Hans-Herbert ^{[1
]}

Geurts, Koen ^{[1
]}

Guettler, Carsten ^{[3
]}

Heinisch, Philip ^{[6
]}

Herique, Alain ^{[7
,8
]}

Hviid, Stubbe ^{[4
]}

Kargl, Guenter

Knapmeyer, Martin ^{[4
]}

Knollenberg, Joerg ^{[4
]}

Kofman, Wlodek ^{[7
,8
]}

Koemle, Norbert

Kuehrt, Ekkehard ^{[4
]}

Lommatsch, Valentina ^{[1
]}

Mottola, Stefano ^{[4
]}

de Santayana, Ramon Pardo ^{[5
,12
]}

Remetean, Emile ^{[9
]}

Scholten, Frank ^{[4
]}

Seidensticker, Klaus J. ^{[4
]}

Sierks, Holger ^{[3
]}

Spohn, Tilman ^{[4
]}

机构：

[1] Deutsch Zentrum Luft & Raumfahrt DLR Raumflugbetr, MUSC, D-51147 Cologne, Germany

[2] DLR Instr Raumfahrtsyst, D-28359 Bremen, Germany

[3] Max Planck Inst Sonnensyst Forsch MPS, D-37077 Gottingen, Germany

[4] DLR Inst Planetenforsch, D-12489 Berlin, Germany

[5] European Space Agcy, European Space Operat Ctr, D-64293 Darmstadt, Germany

[6] Tech Univ Carolo Wilhelmina Braunschweig, Inst Geophys & Extraterr Phys, D-38106 Braunschweig, Germany

[7] Univ Grenoble Alpes, F-38000 Grenoble, France

[8] CNRS, Inst Planetol & Astrophys Grenoble, F-38000 Grenoble, France

[9] Ctr Natl Etud Spatiales, F-31400 Toulouse, France

[10] Univ Gottingen, Inst Phys 1, D-37077 Gottingen, Germany

[11] Univ Saarland, Dept Mat Sci, D-66123 Saarbrucken, Germany

[12] ESA, ESOC GMV, Grp Mecan Vuelo, D-64293 Darmstadt, Germany

来源：

SCIENCE | 2015年 / 349卷 / 6247期

关键词：

67P/CHURYUMOV-GERASIMENKO; STRENGTH; NUCLEUS; LANDER; IMPACT;

D O I：

10.1126/science.aaa9816

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：

The Philae lander, part of the Rosetta mission to investigate comet 67P/Churyumov-Gerasimenko, was delivered to the cometary surface in November 2014. Here we report the precise circumstances of the multiple landings of Philae, including the bouncing trajectory and rebound parameters, based on engineering data in conjunction with operational instrument data. These data also provide information on the mechanical properties (strength and layering) of the comet surface. The first touchdown site, Agilkia, appears to have a granular soft surface (with a compressive strength of 1 kilopascal) at least similar to 20 cm thick, possibly on top of a more rigid layer. The final landing site, Abydos, has a hard surface.

引用

页数：6

共 50 条

[31] Effect of Fibre Surface Treatment on the Mechanical Properties of Jute Fibre Reinforced Unsaturated Polyester Composite
Swain, Priyalaxmi
Pal, Rahul
Chouhan, Dwimayitree
Mohanty, Shyama Prasad
JOURNAL OF NATURAL FIBERS, 2022, 19 (16) : 14924 - 14934
[32] Size effects of mechanical properties of nanohoneycomb with multiple surface orientations
Tsai, Ya-Yun
Chang, Shu-Wei
MECHANICS OF MATERIALS, 2022, 165
[33] Response Surface Model for Mechanical Properties of Robotically Stitched Composites
Alaziz, Radwa
Saha, Shuvam
Sullivan, Rani W.
APPLIED COMPOSITE MATERIALS, 2024, 31 (05) : 1571 - 1591
[34] Laser surface treatment to improve mechanical properties of cast titanium
Watanabe, Ikuya
McBride, Matthew
Newton, Phillip
Kurtz, Kenneth S.
DENTAL MATERIALS, 2009, 25 (05) : 629 - 633
[35] Effects of surface atomistic modification on mechanical properties of gold nanowires
Sun, Xiao-Yu
Xu, Yuanjie
Wang, Gang-Feng
Gu, Yuantong
Feng, Xi-Qiao
PHYSICS LETTERS A, 2015, 379 (34-35) : 1893 - 1897
[36] Combined influences of mechanical properties and surface roughness on the tribological properties of amorphous carbon coatings
Fujisawa, N
McKenzie, DR
James, NL
Woodard, JC
Swain, MV
WEAR, 2006, 260 (1-2) : 62 - 74
[37] Progress in Mechanical Properties of Gradient Structured Metallic Materials Induced by Surface Mechanical Attrition Treatment
Yang, Xu
Pan, Hongjiang
Zhang, Jinxu
Gao, Hongliang
Shu, Baipo
Gong, Yulan
Zhu, Xinkun
MATERIALS TRANSACTIONS, 2019, 60 (08) : 1543 - 1552
[38] Nanocrystalline-grained tungsten prepared by surface mechanical attrition treatment: Microstructure and mechanical properties
Guo, Hong-Yan
Xia, Min
Wu, Zheng-Tao
Chan, Lap-Chung
Dai, Yong
Wang, Kun
Yan, Qing-Zhi
He, Man-Chao
Ge, Chang-Chun
Lu, Jian
JOURNAL OF NUCLEAR MATERIALS, 2016, 480 : 281 - 288
[39] Effects of ultrasonic surface mechanical attrition treatment on microstructures and mechanical properties of high entropy alloys
Tsai, M. T.
Huang, J. C.
Tsai, W. Y.
Chou, T. H.
Chen, Chin-Fu
Li, T. H.
Jang, J. S. C.
INTERMETALLICS, 2018, 93 : 113 - 121
[40] Mechanical properties of rubble pile asteroids (Dimorphos, Itokawa, Ryugu, and Bennu) through surface boulder morphological analysis
Robin, Colas Q.
Duchene, Alexia
Murdoch, Naomi
Vincent, Jean-Baptiste
Lucchetti, Alice
Pajola, Maurizio
Ernst, Carolyn M.
Daly, R. Terik
Barnouin, Olivier S.
Raducan, Sabina D.
Michel, Patrick
Hirabayashi, Masatochi
Stott, Alexander
Cuervo, Gabriela
Jawin, Erica R.
Trigo-Rodriguez, Josep M.
Parro, Laura M.
Sunday, Cecily
Vivet, Damien
Mimoun, David
Rivkin, Andrew S.
Chabot, Nancy L.
NATURE COMMUNICATIONS, 2024, 15 (01)

← 1 2 3 4 5 →