Surface changes on comet 67P/Churyumov-Gerasimenko suggest a more active past

被引：67

作者：

El-Maarry, M. Ramy ^{[1
,2
]}

Groussin, O. ^{[3
]}

Thomas, N. ^{[1
]}

Pajola, M. ^{[4
]}

Auger, A. -T. ^{[3
]}

Davidsson, B. ^{[5
]}

Hu, X. ^{[6
]}

Hviid, S. F. ^{[7
]}

Knollenberg, J. ^{[7
]}

Guettler, C. ^{[6
]}

Tubiana, C. ^{[6
]}

Fornasier, S. ^{[8
]}

Feller, C. ^{[8
]}

Hasselmann, P. ^{[8
]}

Vincent, J. -B. ^{[7
]}

Sierks, H. ^{[6
]}

Barbieri, C. ^{[9
]}

Lamy, P. ^{[10
,11
]}

Rodrigo, R. ^{[12
,13
]}

Koschny, D. ^{[14
]}

Keller, H. U. ^{[7
,15
]}

Rickman, H. ^{[16
,17
]}

A'Hearn, M. F. ^{[18
]}

Barucci, M. A. ^{[8
]}

Bertaux, J. -L. ^{[19
]}

Bertini, I. ^{[9
]}

Besse, S. ^{[14
]}

Bodewits, D. ^{[18
]}

Cremonese, G. ^{[20
]}

Da Deppo, V. ^{[21
]}

Debei, S. ^{[22
]}

De Cecco, M. ^{[23
]}

Deller, J. ^{[6
]}

Deshapriya, J. D. P. ^{[8
]}

Fulle, M. ^{[24
]}

Gutierrez, P. J. ^{[25
]}

Hofmann, M. ^{[6
]}

Ip, W. -H. ^{[26
]}

Jorda, L. ^{[3
]}

Kovacs, G. ^{[6
]}

Kramm, J. -R. ^{[6
]}

Kuehrt, E. ^{[7
]}

Kueppers, M. ^{[14
]}

Lara, L. M. ^{[25
]}

Lazzarin, M. ^{[9
]}

Lin, Z. -Yi ^{[26
]}

Moreno, J. J. Lopez ^{[25
]}

Marchi, S. ^{[27
]}

Marzari, F. ^{[9
]}

Mottola, S. ^{[7
]}

机构：

[1] Univ Bern, Inst Phys, CH-3012 Bern, Switzerland

[2] Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80301 USA

[3] Aix Marseille Univ, CNRS, UMR 7326, Lab Astrophys Marseille, F-13388 Marseille, France

[4] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA

[5] Jet Prop Lab, Pasadena, CA 91109 USA

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

[7] Deutsch Zentrum Luft & Raumfahrt DLR, Inst Planetenforsch, D-12489 Berlin, Germany

[8] Univ Paris Diderot, Sorbonne Univ, PSL Res Univ,CNRS,LESIA, UPMC Univ Paris 06,Observ Paris,Sorbonne Paris Ci, F-92195 Meudon, France

[9] Univ Padua, Dept Phys & Astron, I-35122 Padua, Italy

[10] CNRS, Lab Astrophys Marseille, UMR 7326, F-13388 Marseille 13, France

[11] Univ Aix Marseille, F-13388 Marseille 13, France

[12] Inst Nacl Tecn Aeroespacial, Ctr Astrobiol, Madrid 28850, Spain

[13] Int Space Sci Inst, CH-3012 Bern, Switzerland

[14] European Space Astron Ctr ESA, Operat Dept, POB 78, Madrid 28691, Spain

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

[16] Uppsala Univ, Dept Phys & Astron, Box 516, S-75120 Uppsala, Sweden

[17] Polish Acad Sci, Space Res Ctr, PL-00716 Warsaw, Poland

[18] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

[19] Univ Versailles St Quentin En Yvelines, Lab Atmospheres Milieux Observat Spatiales LATMOS, Inst Pierre Simon Laplace, CNRS, F-78280 Guyancourt, France

[20] Osserv Astron Padova, Ist Nazl Astrofis, I-35122 Padua, Italy

[21] CNR, Ist Foton & Nanotecnol, Unita Org Supporto, Padova Luxor, I-35131 Padua, Italy

[22] Univ Padua, Dept Ind Engn, I-35131 Padua, Italy

[23] Univ Trento, I-38123 Trento, Italy

[24] Osserv Astron Trieste, INAF, I-34014 Trieste, Italy

[25] Inst Astrofis Andalucia CSIC, C Glorieta Astron S-N, Granada 18008, Spain

[26] Natl Cent Univ, Grad Inst Astron, Chungli 32054, Taiwan

[27] Southwest Res Inst, Virtual Inst, Solar Syst Explorat Res, Boulder, CO 80302 USA

[28] Univ Padua, Dept Informat Engn, I-35131 Padua, Italy

[29] Univ Padua, Ctr Ateneo Studi & Attivita Spaziali Giuseppe Col, I-35131 Padua, Italy

来源：

SCIENCE | 2017年 / 355卷 / 6332期

基金：

瑞士国家科学基金会;

关键词：

IMHOTEP REGION; NUCLEUS; ROTATION; OSIRIS; SHAPE;

D O I：

10.1126/science.aak9384

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 Rosetta spacecraft spent similar to 2 years orbiting comet 67P/Churyumov-Gerasimenko, most of it at distances that allowed surface characterization and monitoring at submeter scales. From December 2014 to June 2016, numerous localized changes were observed, which we attribute to cometary-specific weathering, erosion, and transient events driven by exposure to sunlight and other processes. While the localized changes suggest compositional or physical heterogeneity, their scale has not resulted in substantial alterations to the comet's landscape. This suggests that most of the major landforms were created early in the comet's current orbital configuration. They may even date from earlier if the comet had a larger volatile inventory, particularly of CO or CO2 ices, or contained amorphous ice, which could have triggered activity at greater distances from the Sun.

引用

页码：1392 / +

页数：4

共 24 条

[1] Geomorphology of the Imhotep region on comet 67P/Churyumov-Gerasimenko from OSIRIS observations [J].

Auger, A. -T. ;

Groussin, O. ;

Jorda, L. ;

Bouley, S. ;

Gaskell, R. ;

Lamy, P. L. ;

Capanna, C. ;

Thomas, N. ;

Pommerol, A. ;

Sierks, H. ;

Barbieri, C. ;

Rodrigo, R. ;

Koschny, D. ;

Rickman, H. ;

Keller, H. U. ;

Agarwal, J. ;

A'Hearn, M. F. ;

Barucci, M. A. ;

Bertaux, J. -L. ;

Bertini, I. ;

Cremonese, G. ;

Da Deppo, V. ;

Davidsson, B. ;

Debei, S. ;

De Cecco, M. ;

El-Maarry, M. R. ;

Fornasier, S. ;

Fulle, M. ;

Gutierrez, P. J. ;

Guettler, C. ;

Hviid, S. ;

Ip, W. -H. ;

Knollenberg, J. ;

Kramm, J. -R. ;

Kuehrt, E. ;

Kueppers, M. ;

La Forgia, F. ;

Lara, L. M. ;

Lazzarin, M. ;

Lopez Moreno, J. J. ;

Marchi, S. ;

Marzari, F. ;

Massironi, M. ;

Michalik, H. ;

Naletto, G. ;

Oklay, N. ;

Pajola, M. ;

Sabau, L. ;

Tubiana, C. ;

Vincent, J. -B. .

ASTRONOMY & ASTROPHYSICS, 2015, 583

[2]

Belyaev N. A., 1986, CATALOGUE SHORT PERI

[3]

Duperret A, 2004, ENG GEOL SPEC PUBL S, P33

[4] Regional surface morphology of comet 67P/Churyumov-Gerasimenko from Rosetta/OSIRIS images [J].

El-Maarry, M. R. ;

Thomas, N. ;

Giacomini, L. ;

Massironi, M. ;

Pajola, M. ;

Marschall, R. ;

Gracia-Berna, A. ;

Sierks, H. ;

Barbieri, C. ;

Lamy, P. L. ;

Rodrigo, R. ;

Rickman, H. ;

Koschny, D. ;

Keller, H. U. ;

Agarwal, J. ;

A'Hearn, M. F. ;

Auger, A. -T. ;

Barucci, M. A. ;

Bertaux, J. -L. ;

Bertini, I. ;

Besse, S. ;

Bodewits, D. ;

Cremonese, G. ;

Da Deppo, V. ;

Davidsson, B. ;

De Cecco, M. ;

Debei, S. ;

Guettler, C. ;

Fornasier, S. ;

Fulle, M. ;

Groussin, O. ;

Gutierrez, P. J. ;

Hviid, S. F. ;

Ip, W. -H. ;

Jorda, L. ;

Knollenberg, J. ;

Kovacs, G. ;

Kramm, J. -R. ;

Kuehrt, E. ;

Kueppers, M. ;

La Forgia, F. ;

Lara, L. M. ;

Lazzarin, M. ;

Lopez Moreno, J. J. ;

Marchi, S. ;

Marzari, F. ;

Michalik, H. ;

Naletto, G. ;

Oklay, N. ;

Pommerol, A. .

ASTRONOMY & ASTROPHYSICS, 2015, 583

[5] Fractures on comet 67P/Churyumov-Gerasimenko observed by Rosetta/OSIRIS [J].

El-Maarry, M. R. ;

Thomas, N. ;

Gracia-Berna, A. ;

Marschall, R. ;

Auger, A. -T. ;

Groussin, O. ;

Mottola, S. ;

Pajola, M. ;

Massironi, M. ;

Marchi, S. ;

Hoefner, S. ;

Preusker, F. ;

Scholten, F. ;

Jorda, L. ;

Kuehrt, E. ;

Keller, H. U. ;

Sierks, H. ;

A'Hearn, M. F. ;

Barbieri, C. ;

Barucci, M. A. ;

Bertaux, J. -L. ;

Bertini, I. ;

Cremonese, G. ;

Da Deppo, V. ;

Davidsson, B. ;

Debei, S. ;

De Cecco, M. ;

Deller, J. ;

Guettler, C. ;

Fornasier, S. ;

Fulle, M. ;

Gutierrez, P. J. ;

Hofmann, M. ;

Hviid, S. F. ;

Ip, W. -H. ;

Knollenberg, J. ;

Koschny, D. ;

Kovacs, G. ;

Kramm, J. -R. ;

Kueppers, M. ;

Lamy, P. L. ;

Lara, L. M. ;

Lazzarin, M. ;

Lopez Moreno, J. J. ;

Marzari, F. ;

Michalik, H. ;

Naletto, G. ;

Oklay, N. ;

Pommerol, A. ;

Rickman, H. .

GEOPHYSICAL RESEARCH LETTERS, 2015, 42 (13) :5170-5178

[6] Rosetta's comet 67P/Churyumov-Gerasimenko sheds its dusty mantle to reveal its icy nature [J].

Fornasier, S. ;

Mottola, S. ;

Keller, H. U. ;

Barucci, M. A. ;

Davidsson, B. ;

Feller, C. ;

Deshapriya, J. D. P. ;

Sierks, H. ;

Barbieri, C. ;

Lamy, P. L. ;

Rodrigo, R. ;

Koschny, D. ;

Rickman, H. ;

A'Hearn, M. ;

Agarwal, J. ;

Bertaux, J. -L. ;

Bertini, I. ;

Besse, S. ;

Cremonese, G. ;

Da Deppo, V. ;

Debei, S. ;

De Cecco, M. ;

Deller, J. ;

El-Maarry, M. R. ;

Fulle, M. ;

Groussin, O. ;

Gutierrez, P. J. ;

Guettler, C. ;

Hofmann, M. ;

Hviid, S. F. ;

Ip, W. -H. ;

Jorda, L. ;

Knollenberg, J. ;

Kovacs, G. ;

Kramm, R. ;

Kuehrt, E. ;

Kuppers, M. ;

Lara, M. L. ;

Lazzarin, M. ;

Moreno, J. J. Lopez ;

Marzari, F. ;

Massironi, M. ;

Naletto, G. ;

Oklay, N. ;

Pajola, M. ;

Pommerol, A. ;

Preusker, F. ;

Scholten, F. ;

Shi, X. ;

Thomas, N. .

SCIENCE, 2016, 354 (6319) :1566-1570

[7] Temporal morphological changes in the Imhotep region of comet 67P/Churyumov-Gerasimenko [J].

Groussin, O. ;

Sierks, H. ;

Barbieri, C. ;

Lamy, P. ;

Rodrigo, R. ;

Koschny, D. ;

Rickman, H. ;

Keller, H. U. ;

A'Hearn, M. F. ;

Auger, A. -T. ;

Barucci, M. A. ;

Bertaux, J. -L. ;

Bertini, I. ;

Besse, S. ;

Cremonese, G. ;

Da Deppo, V. ;

Davidsson, B. ;

Debei, S. ;

De Cecco, M. ;

El-Maarry, M. R. ;

Fornasier, S. ;

Fulle, M. ;

Gutierrez, P. J. ;

Guettler, C. ;

Hviid, S. ;

Ip, W. -H ;

Jorda, L. ;

Knollenberg, J. ;

Kovacs, G. ;

Kramm, J. R. ;

Kuehrt, E. ;

Kueppers, M. ;

Lara, L. M. ;

Lazzarin, M. ;

Lopez Moreno, J. J. ;

Lowry, S. ;

Marchi, S. ;

Marzari, F. ;

Massironi, M. ;

Mottola, S. ;

Naletto, G. ;

Oklay, N. ;

Pajola, M. ;

Pommerol, A. ;

Thomas, N. ;

Toth, I. ;

Tubiana, C. ;

Vincent, J. -B. .

ASTRONOMY & ASTROPHYSICS, 2015, 583

[8] Fission and reconfiguration of bilobate comets as revealed by 67P/Churyumov-Gerasimenko [J].

Hirabayashi, Masatoshi ;

Scheeres, Daniel J. ;

Chesley, Steven R. ;

Marchi, Simone ;

McMahon, Jay W. ;

Steckloff, Jordan ;

Mottola, Stefano ;

Naidu, Shantanu P. ;

Bowling, Timothy .

NATURE, 2016, 534 (7607) :352-+

[9] THE ACTIVE CENTAURS [J].

Jewitt, David .

ASTRONOMICAL JOURNAL, 2009, 137 (05) :4296-4312

[10] The global shape, density and rotation of Comet 67P/Churyumov-Gerasimenko from preperihelion Rosetta/OSIRIS observations [J].

Jorda, L. ;

Gaskell, R. ;

Capanna, C. ;

Hviid, S. ;

Lamy, P. ;

Durech, J. ;

Faury, G. ;

Groussin, O. ;

Gutierrez, P. ;

Jackman, C. ;

Keihm, S. J. ;

Keller, H. U. ;

Knollenberg, J. ;

Kuehrt, E. ;

Marchi, S. ;

Mottola, S. ;

Palmer, E. ;

Schloerb, F. P. ;

Sierks, H. ;

Vincent, J. -B. ;

A'Hearn, M. F. ;

Barbieri, C. ;

Rodrigo, R. ;

Koschny, D. ;

Rickman, H. ;

Barucci, M. A. ;

Bertaux, J. L. ;

Bertini, I. ;

Cremonese, G. ;

Da Deppo, V. ;

Davidsson, B. ;

Debei, S. ;

De Cecco, M. ;

Fornasier, S. ;

Fulle, M. ;

Guettler, C. ;

Ip, W. -H. ;

Kramm, J. R. ;

Kueppers, M. ;

Lara, L. M. ;

Lazzarin, M. ;

Lopez Moreno, J. J. ;

Marzari, F. ;

Naletto, G. ;

Oklay, N. ;

Thomas, N. ;

Tubiana, C. ;

Wenzel, K-P. .

ICARUS, 2016, 277 :257-278

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