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

[41] Mechanical properties of gradient structured copper obtained by ultrasonic surface rolling
Chen, Desong
Mao, Xiqin
Ou, Meigui
Liang, Yu
SURFACE & COATINGS TECHNOLOGY, 2022, 431
[42] Mechanical properties of the concrete with recycled coarse aggregate surface treated by microbes
Jagan, S.
Neelakantan, T. R.
WORLD JOURNAL OF ENGINEERING, 2023, 20 (02) : 359 - 367
[43] AFM characterization of surface mechanical and electrical properties of some common rocks
Tian, Xianghui
He, Xueqiu
Song, Dazhao
Li, Zhenlei
Khan, Majid
Liu, Huifang
Qiu, Liming
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY, 2022, 32 (02) : 435 - 445
[44] Mechanical and microstructural properties of S1100 UHSS welds obtained by EBW and MAG welding
Tumer, Mustafa
Pixner, Florian
Vallant, Rudolf
Domitner, Josef
Enzinger, Norbert
WELDING IN THE WORLD, 2022, 66 (06) : 1199 - 1211
[45] Surface effects on the mechanical properties of rhodium nanowires by molecular dynamics simulations
Sengul, Sedat
Guner, Alper Koray
Guder, Vildan
PHYSICA B-CONDENSED MATTER, 2021, 622
[46] Investigation about the effect of different fine aggregates on physical, mechanical and thermal properties of mortars
Kockal, Niyazi Ugur
CONSTRUCTION AND BUILDING MATERIALS, 2016, 124 : 816 - 825
[47] Interrelation of Mechanical Properties and Root Damage of Salix with Ground Surface Subsidence
Ma, Yunjing
JOURNAL OF MINING SCIENCE, 2024, 60 (02) : 220 - 231
[48] The Structure and Mechanical Properties of the Surface Layer of Polypropylene Polymers with Talc Additions
Swietlicki, Michal
Chocyk, Dariusz
Klepka, Tomasz
Proszynski, Adam
Kwasniewska, Anita
Borc, Jaroslaw
Gladyszewski, Grzegorz
MATERIALS, 2020, 13 (03)
[49] Study of the Impact of Surface Topography on Selected Mechanical Properties of Adhesive Joints
Slugocka, Malgorzata
Grochala, Daniel
Kwiatkowski, Konrad
Grzejda, Rafal
Zmarzly, Pawel
COATINGS, 2024, 14 (08)
[50] Prediction of graphene's mechanical and fracture properties via peridynamics
Liu, Xuefeng
Yu, Peng
Zheng, Baojing
Oterkus, Erkan
He, Xiaoqiao
Lu, Chun
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2024, 266

← 1 2 3 4 5 →