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Fractures on comet 67P/Churyumov-Gerasimenko observed by Rosetta/OSIRIS

El-Maarry, M.R. and Thomas, N. and Gracia Berná, A. and Marschall, R. and Auger, A. - T. and Groussin, O. and Mottola, Stefano and Pajola, M. and Massironi, M. and Marchi, S. and Höfner, S. and Preusker, Frank and Scholten, F. and Jorda, L. and Kührt, E. and Keller, H. U. and Sierks, H. and A'Hearn, M. F. and Barbieri, C. and Barucci, M. A. and Bertaux, J.-L. and Bertini, I. and Cremonese, G. and Da Deppo, V. and Davidsson, B. and Debei, S. and De Cecco, M. and Deller, J. and Güttler, C. and Fornasier, S. and Fulle, M. and Gutierrez, P.J. and Hofmann, M. and Hviid, S. and Ip, W-H. and Knollenberg, J. and Koschny, D. and Kovacs, G. and Kramm, J. R. and Küppers, Michael and Lamy, P. and Lara, L. M. and Lazzarin, M. and Lopez Moreno, J. and Marzari, F. and Michalik, H. and Naletto, G. and Oklay, N. and Pommerol, Antoine and Rickman, H. and Rodrigo, Rafael and Tubiana, C. and Vincent, J.B. (2015) Fractures on comet 67P/Churyumov-Gerasimenko observed by Rosetta/OSIRIS. Geophysical Research Letters, 42 (13), pp. 5170-5178. Wiley. DOI: 10.1002/2015GL064500 ISSN 0094-8276

Full text not available from this repository.

Abstract

The OSIRIS camera onboard the Rosetta spacecraft currently orbiting comet 67P/Churyumov-Gerasimenko has yielded unprecedented views of a comet’s nucleus. We present here the first ever observations of meters - scale fractures on a surface of a comet, some forming polygonal networks. We present an initial assessment of their morphology, topology, and regional distribution. Our analysis shows that fractures are ubiquitous on the surface and show various morphologies and settings suggesting numerous formation mechanisms, which mainly encompass thermal fatigue, orbital - induced stresses, and possibly seasonal thermal contraction among other mechanisms. The presence of fractures on a cometary surface is of paramount significance to cometary science and could be a main driver in the surface evolution process, namely, through enhancement of mechanical erosion and localized activity.

Item URL in elib:https://elib.dlr.de/97026/
Document Type:Article
Title:Fractures on comet 67P/Churyumov-Gerasimenko observed by Rosetta/OSIRIS
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
El-Maarry, M.R.Physikalisches Institut, University of Bern, Bern, SwitzerlandUNSPECIFIED
Thomas, N.Physikalisches Institut, University of Bern, Bern, SwitzerlandUNSPECIFIED
Gracia Berná, A.Physikalisches Institut, University of Bern, Bern, SwitzerlandUNSPECIFIED
Marschall, R.Physikalisches Institut, University of Bern, Bern, SwitzerlandUNSPECIFIED
Auger, A. - T.Aix Marseille Université, CNRS, Laboratoire d’AstrophysiqueUNSPECIFIED
Groussin, O.Aix Marseille Université, CNRS, Laboratoire d’AstrophysiqueUNSPECIFIED
Mottola, Stefanostefano.mottola (at) dlr.deUNSPECIFIED
Pajola, M.CISAS - Center for Studies and Activities for Space, University of PadovaUNSPECIFIED
Massironi, M.University of Padova, ItalyUNSPECIFIED
Marchi, S.Department of Astronomy, University of PaduaUNSPECIFIED
Höfner, S.Max-Planck-Institut für Sonnensystemforschung, Göttingen, GermanyUNSPECIFIED
Preusker, Frankfrank.preusker (at) dlr.deUNSPECIFIED
Scholten, F.frank.scholten (at) dlr.deUNSPECIFIED
Jorda, L.Laboratoire d'Astrophysique de Marseille, FranceUNSPECIFIED
Kührt, E.ekkehard.kuehrt (at) dlr.deUNSPECIFIED
Keller, H. U.Max-Planck-Institut für Sonnensystemforschung, Katlenburg-LindauUNSPECIFIED
Sierks, H.Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau, GermanyUNSPECIFIED
A'Hearn, M. F.University of Maryland, Department of Astronomy, Maryland, USAUNSPECIFIED
Barbieri, C.University of Padova, Padova, ItalyUNSPECIFIED
Barucci, M. A.Observatoire de Paris, Meudon, FranceUNSPECIFIED
Bertaux, J.-L.Laboratoire Atmosphères, Milieux, Observations Spatiales, CNRS/UVSQ/UPMC, 11 boulevard d’Alembert, 78280 Guyancourt, FranceUNSPECIFIED
Bertini, I.Dipartimento di Astronomia, Università di Padova, Padova, ItalyUNSPECIFIED
Cremonese, G.Osservatorio Astronomico, Padova, ItalyUNSPECIFIED
Da Deppo, V.Consiglio Nazionale delle Ricerche-Istituto Nazionale per la Fisica della Materia, Luxor, Padova, ItalyUNSPECIFIED
Davidsson, B.Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, SwedenUNSPECIFIED
Debei, S.Università di Padova, Center of Studies and Activities of Space (CISAS) "G.Colombo", Padova, ItalyUNSPECIFIED
De Cecco, M.Università di Padova, Center of Studies and Activities of Space (CISAS) "G.Colombo", Padova, ItalyUNSPECIFIED
Deller, J.MPSUNSPECIFIED
Güttler, C.Max-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077 Göttingen, GermanyUNSPECIFIED
Fornasier, S.Observatoire de Paris-Meudon, FranceUNSPECIFIED
Fulle, M.INAF - Osservatorio Astronomico di Trieste, Trieste, ItalyUNSPECIFIED
Gutierrez, P.J.IAA-CSIC, Granada, SpainUNSPECIFIED
Hofmann, M.Max-Planck-Institut für Sonnensystemforschung, Göttingen, GermanyUNSPECIFIED
Hviid, S.stubbe.hviid (at) dlr.deUNSPECIFIED
Ip, W-H.Institute for Space Science, National Central University, Chung Li, TaiwanUNSPECIFIED
Knollenberg, J.joerg.knollenberg (at) dlr.deUNSPECIFIED
Koschny, D.Research and Scientific Support Department, European Space Agency, 2201 Noordwijk, The NetherlandsUNSPECIFIED
Kovacs, G.Max–Planck–Institut für Sonnensystemforschung, Justus–von–UNSPECIFIED
Kramm, J. R.Max Planck Institute for Solar Systems Research, Katlenburg-Lindau, GermanyUNSPECIFIED
Küppers, MichaelMax-Planck-Institut für SonnensystemforschungUNSPECIFIED
Lamy, P.Laboratoire d'Astronomie Spatiale, Marseille, FranceUNSPECIFIED
Lara, L. M.Instituto de Astrofisica de Andalucia, CSIC, Granada, SpainUNSPECIFIED
Lazzarin, M.Department of Astronomy, University of PaduaUNSPECIFIED
Lopez Moreno, J.Instituto de Astrofifica de Andalucia-Consejo Superior de Investigaciones Cientificas, Granada, SpainUNSPECIFIED
Marzari, F.Università di Padova, Departimento di Fisica, Padova, ItalyUNSPECIFIED
Michalik, H.Institut für Datentechnik und Kommunikationsnetze (IDA), Technische Universität Braunschweig, Hans-Sommer-Str. 66, 38106 Braunschweig, GermanyUNSPECIFIED
Naletto, G.Università di Padova, Departimento di Elettronica et Informatica, Padova, ItalyUNSPECIFIED
Oklay, N.Max-Planck-Institut für SonnensystemforschungUNSPECIFIED
Pommerol, AntoinePhysikalisches Institut, Sidlerstrasse 5, University of Bern, 3012, Bern, SwitzerlandUNSPECIFIED
Rickman, H.Department of Physics and Astronomy, Uppsala University, 75120 Uppsala, SwedenUNSPECIFIED
Rodrigo, RafaelInstituto de Astrofisica de AndaluciaUNSPECIFIED
Tubiana, C.Max-Planck-Institut fuer Sonnensystemforschung, GermanyUNSPECIFIED
Vincent, J.B.Max-Planck-Institut fuer Sonnensystemforschung, GermanyUNSPECIFIED
Date:2015
Journal or Publication Title:Geophysical Research Letters
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:42
DOI :10.1002/2015GL064500
Page Range:pp. 5170-5178
Publisher:Wiley
ISSN:0094-8276
Status:Published
Keywords:fractures, comet 67P/ Churyumov-Gerasimenko, Rosetta, OSIRIS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Projekt ROSETTA Instrumente
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Institute of Planetary Research > Planetary Geodesy
Deposited By: Bründl, Tara-Marie
Deposited On:06 Jan 2016 16:27
Last Modified:08 Mar 2018 18:29

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