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Large heterogeneities in comet 67P as revealed by active pits from sinkhole collapse

Vincent, Jean-Baptiste and Bodewits, Dennis and Besse, Sébastien and Sierks, Holger and Barbieri, Cesare and Lamy, Philippe and Rodrigo, Rafael and Koschny, Detlef and Rickman, Hans and Keller, Horst Uwe and Agarwal, Jessica and A'Hearn, Michael F. and Auger, Anne-Thérèse and Barucci, Antonella and Bertaux, J.-L. and Bertini, I. and Capanna, C. and Cremonese, Gabriele and Da Deppo, V. and Davidsson, Björn and Debei, S. and De Cecco, M. and Ramy El-Maarry, Mohamed and Ferri, Francesca and Fornasier, Sonia and Fulle, Marco and Gaskell, Robert and Giacomini, Lorenza and Groussin, Olivier and Guilbert-Lepoutre, Aurélie and Gutierrez-Marques, P. and Gutiérrez, Pedro J. and Güttler, Carsten and Hoekzema, Nick and Hviid, Stubbe F. and Ip, Wing-Huen and Jorda, Laurent and Knollenberg, Jörg and Kovacs, Gabor and Kramm, Rainer and Kührt, Ekkehard and Küppers, Michael and La Forgia, Fiorangela and Lara, Luisa M. and Lazzarin, Monica and Lee, Vicky and Leyrat, Cédric and Lin, Zhong-Yi and Lopez Moreno, Josè J. and Lowry, Stephen and Magrin, Sara and Maquet, Lucie and Marchi, Simone and Marzari, Francesco and Massironi, Matteo and Michalik, Harald and Moissl, Richard and Mottola, Stefano and Naletto, Giampiero and Oklay, Nilda and Pajola, Maurizio and Preusker, Frank and Scholten, Frank and Thomas, Nicolas and Toth, Imre and Tubiana, Cecilia (2015) Large heterogeneities in comet 67P as revealed by active pits from sinkhole collapse. Nature, 523, pp. 63-66. Nature Publishing Group. DOI: doi:10.1038/nature14564 ISSN 0028-0836

Full text not available from this repository.

Official URL: http://www.nature.com/nature/journal/v523/n7558/full/nature14564.html

Abstract

Pits have been observed on many cometary nuclei mapped by spacecraft. It has been argued that cometary pits are a signature of endogenic activity, rather than impact craters such as those on planetary and asteroid surfaces. Impact experiments and models cannot reproduce the shapes of most of the observed cometary pits, and the predicted collision rates imply that few of the pits are related to impacts. Alternative mechanisms like explosive activity have been suggested, but the driving process remains unknown. Here we report that pits on comet 67P/Churyumov–Gerasimenko are active, and probably created by a sinkhole process, possibly accompanied by outbursts. We argue that after formation, pits expand slowly in diameter, owing to sublimation-driven retreat of the walls. Therefore, pits characterize how eroded the surface is: a fresh cometary surface will have a ragged structure with many pits, while an evolved surface will look smoother. The size and spatial distribution of pits imply that large heterogeneities exist in the physical, structural or compositional properties of the first few hundred metres below the current nucleus surface.

Item URL in elib:https://elib.dlr.de/97698/
Document Type:Article
Title:Large heterogeneities in comet 67P as revealed by active pits from sinkhole collapse
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Vincent, Jean-BaptisteMax-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077, Göttingen, Germany, E-Mail: vincent (at) mps.mpg.deUNSPECIFIED
Bodewits, DennisUniversity of Maryland, USAUNSPECIFIED
Besse, SébastienESTEC, The NetherlandsUNSPECIFIED
Sierks, HolgerMPS GöttingenUNSPECIFIED
Barbieri, CesareUniversity of Padova, ItalyUNSPECIFIED
Lamy, PhilippeLAM Marseille, FranceUNSPECIFIED
Rodrigo, RafaelCentro de Astrobiologia Madrid, SpainUNSPECIFIED
Koschny, DetlefESTEC, The NetherlandsUNSPECIFIED
Rickman, HansUppsala University, SwedenUNSPECIFIED
Keller, Horst UweTU BraunschweigUNSPECIFIED
Agarwal, JessicaMPS GöttingenUNSPECIFIED
A'Hearn, Michael F.MPS GöttingenUNSPECIFIED
Auger, Anne-ThérèseLAM Marseille, FranceUNSPECIFIED
Barucci, AntonellaObservatoire de Paris-Meudon, FranceUNSPECIFIED
Bertaux, J.-L.Laboratoire Atmosphères, Milieux, Observations Spatiales, CNRS/UVSQ/UPMC, 11 boulevard d’Alembert, 78280 Guyancourt, FranceUNSPECIFIED
Bertini, I.CISAS, Padova, ItalyUNSPECIFIED
Capanna, C.Laboratoire d'Astrophysique de Marseille, FranceUNSPECIFIED
Cremonese, GabrieleINAF, Padova, IUNSPECIFIED
Da Deppo, V.CNR-IFN UOS Padova LUXOR, Padova, ItalyUNSPECIFIED
Davidsson, BjörnCentro de Astrobiologia, CSIC-INTA, 28850 Torrejon de Ardoz, Madrid, SpainUNSPECIFIED
Debei, S.Department of Industrial Engineering, University of Padova, via Venezia 1, 35131 Padova, ItalyUNSPECIFIED
De Cecco, M.UNITN, Univ. di Trento, Trento, ItalyUNSPECIFIED
Ramy El-Maarry, MohamedPhysikalisches Institut der Universität Bern, Sidlerstraße 5, 3012 Bern, SwitzerlandUNSPECIFIED
Ferri, FrancescaCentro di Ateneo di Studi ed Attività Spaziali “Giuseppe Colombo” (CISAS), University of Padova, via Venezia 15, 35131 Padova, ItalyUNSPECIFIED
Fornasier, SoniaLESIA-Observatoire de Paris, CNRS, Université Pierre et Marie Curie, Universite Paris Diderot, 5 place Jules Janssen, 92195 Meudon, FranceUNSPECIFIED
Fulle, MarcoINAF Osservatorio Astronomico, via Tiepolo 11, 34014 Trieste, ItalyUNSPECIFIED
Gaskell, RobertPlanetary Science Institute, Tucson, Arizona 85719, USAUNSPECIFIED
Giacomini, LorenzaCentro di Ateneo di Studi ed Attività Spaziali “Giuseppe Colombo” (CISAS), University of Padova, via Venezia 15, 35131 Padova, ItalyUNSPECIFIED
Groussin, OlivierLaboratoire d'Astrophysique de Marseille, UMR 7326, CNRS and Aix Marseille Université, 13388 Marseille Cedex 13, FranceUNSPECIFIED
Guilbert-Lepoutre, AurélieUniversity of Maryland, Department of Astronomy, College Park, Maryland 20742-2421, USAUNSPECIFIED
Gutierrez-Marques, P.Max-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077 Göttingen, GermanyUNSPECIFIED
Gutiérrez, Pedro J.Instituto de Astrofisica de Andalucia (CSIC), Glorieta de la Astronomìa s/n, 18008 Granada, SpainUNSPECIFIED
Güttler, CarstenMax-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077 Göttingen, GermanyUNSPECIFIED
Hoekzema, NickMax-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077 Göttingen, GermanyUNSPECIFIED
Hviid, Stubbe F.Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Planetenforschung, Rutherfordstraße 2, 12489 Berlin, GermanyUNSPECIFIED
Ip, Wing-HuenNational Central University, Graduate Institute of Astronomy, 300 Chung-Da Rd, Chung-Li 32054, TaiwanUNSPECIFIED
Jorda, LaurentLaboratoire d'Astrophysique de Marseille, UMR 7326, CNRS and Aix Marseille Université, 13388 Marseille Cedex 13, FranceUNSPECIFIED
Knollenberg, Jörgjoerg.knollenberg (at) dlr.deUNSPECIFIED
Kovacs, GaborMax-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077 Göttingen, GermanyUNSPECIFIED
Kramm, RainerMax-Planck-Institut für SonnensystemforschungUNSPECIFIED
Kührt, Ekkehardekkehard.kuehrt (at) dlr.deUNSPECIFIED
Küppers, MichaelOperations Department, European Space Astronomy Centre/ESA, PO Box 78, 28691 Villanueva de la Canada, Madrid, SpainUNSPECIFIED
La Forgia, FiorangelaUniversity of Padova, Department of Physics and Astronomy, Vicolo dell'Osservatorio 3, 35122 Padova, ItalyUNSPECIFIED
Lara, Luisa M.Instituto de Astrofisica de Andalucia (CSIC), Glorieta de la Astronomìa s/n, 18008 Granada, SpainUNSPECIFIED
Lazzarin, MonicaUniversity of Padova, Department of Physics and Astronomy, Vicolo dell'Osservatorio 3, 35122 Padova, ItalyUNSPECIFIED
Lee, VickyNational Central University, Graduate Institute of Astronomy, 300 Chung-Da Rd, Chung-Li 32054, TaiwanUNSPECIFIED
Leyrat, CédricLESIA-Observatoire de Paris, CNRS, Université Pierre et Marie Curie, Universite Paris Diderot, 5 place Jules Janssen, 92195 Meudon, FranceUNSPECIFIED
Lin, Zhong-YiNational Central University, Graduate Institute of Astronomy, 300 Chung-Da Rd, Chung-Li 32054, TaiwanUNSPECIFIED
Lopez Moreno, Josè J.Instituto de Astrofisica de Andalucia (CSIC), Glorieta de la Astronomìa s/n, 18008 Granada, SpainUNSPECIFIED
Lowry, StephenThe University of Kent, School of Physical Sciences, Canterbury, Kent CT2 7NZ, UKUNSPECIFIED
Magrin, SaraUniversity of Padova, Deptartment of Physics and Astronomy, via Marzolo 8, 35131 Padova, ItalyUNSPECIFIED
Maquet, LucieOperations Department, European Space Astronomy Centre/ESA, PO Box 78, 28691 Villanueva de la Canada, Madrid, SpainUNSPECIFIED
Marchi, SimoneSolar System Exploration Research Virtual Institute, Southwest Research Institute, 1050 Walnut Street, Suite 300, Boulder, Colorado 80302, USAUNSPECIFIED
Marzari, FrancescoUniversity of Padova, Deptartment of Physics and Astronomy, via Marzolo 8, 35131 Padova, ItalyUNSPECIFIED
Massironi, MatteoDipartimento di Geoscienze, University of Padova, via Giovanni Gradenigo 6, 35131 Padova, ItalyUNSPECIFIED
Michalik, HaraldInstitut für Datentechnik und Kommunikationsnetze der Technische Universität Braunschweig, Hans-Sommer-Straße 66, 38106 Braunschweig, GermanyUNSPECIFIED
Moissl, RichardOperations Department, European Space Astronomy Centre/ESA, PO Box 78, 28691 Villanueva de la Canada, Madrid, SpainUNSPECIFIED
Mottola, Stefanostefano.mottola (at) dlr.deUNSPECIFIED
Naletto, GiampieroCentro di Ateneo di Studi ed Attività Spaziali “Giuseppe Colombo” (CISAS), University of Padova, via Venezia 15, 35131 Padova, ItalyUNSPECIFIED
Oklay, NildaMax-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077 Göttingen, GermanyUNSPECIFIED
Pajola, MaurizioCentro di Ateneo di Studi ed Attività Spaziali “Giuseppe Colombo” (CISAS), University of Padova, via Venezia 15, 35131 Padova, ItalyUNSPECIFIED
Preusker, Frankfrank.preusker (at) dlr.deUNSPECIFIED
Scholten, FrankFrank.Scholten (at) dlr.deUNSPECIFIED
Thomas, NicolasPhysikalisches Institut der Universität Bern, Sidlerstraße 5, 3012 Bern, SwitzerlandUNSPECIFIED
Toth, ImreKonkoly Observatory of the Hungarian Academy of Sciences, PO Box 67, 1525 Budapest, HungaryUNSPECIFIED
Tubiana, CeciliaMax-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077 Göttingen, GermanyUNSPECIFIED
Date:2 July 2015
Journal or Publication Title:Nature
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:523
DOI :doi:10.1038/nature14564
Page Range:pp. 63-66
Publisher:Nature Publishing Group
ISSN:0028-0836
Status:Published
Keywords:Asteroids, comets, Kuiper belt, comet 67P
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:19 Oct 2015 10:44
Last Modified:08 Mar 2018 18:47

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