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On the nucleus structure and activity of comet 67P/Churyumov-Gerasimenko

Sierks, Holger and Barbieri, Cesare and Lamy, Philippe and Rodrigo, Rafael and Koschny, Detlef and Rickman, Hans and Keller, Horst Uwe and Agarwal, J. and A’Hearn, Michael and Angrilli, Francesco and Auger, Anne-Therese and Barucci, Antonella and Bertaux, J.-L. and Bertini, Ivano and Besse, Sebastien and Bodewits, Dennis and Capanna, Claire and Cremonese, Gabriele and Da Deppo, Vania and Davidsson, Björn and Debei, Stefan and De Cecco, Mariolino and Ferri, Francesca and Fornasier, Sonia and Fulle, Marco and Gaskell, Robert W and Giacomini, L. and Groussin, Olivier and Gutierrez-Marques, Pablo and Gutierrez Buenestado, Pedro and Güttler, Carsten and Hoekzema, Nick and Hviid, Stubbe and Ip, Wing-Huen and Jorda, Laurent and Knollenberg, Jörg and Kovács, Gabor and Kramm, Rainer and Kührt, Ekkehard and Küppers, Michael and La Forgia, Fiorangela and Lara, Luisa M. and Lazzarin, Monica and Leyrat, Cédric and Lopez Moreno, Josè and Magrin, Sara 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 Pertile, Marco and Preusker, Frank and Sabau, Lola and Scholten, Frank and Snodgrass, Colin and Thomas, Nicolas and Tubiana, Cecilia and Vincent, Jean-Baptiste and Wenzel, Klaus-Peter and Zaccariotto, Mirco and Pätzold, Martin (2015) On the nucleus structure and activity of comet 67P/Churyumov-Gerasimenko. Science, 347 (6220), aaa1044-1. American Association for the Advancement of Science (AAAS). DOI: 10.1126/science.aaa1044 ISSN 0036-8075

Full text not available from this repository.

Official URL: http://www.sciencemag.org/content/347/6220/aaa1044.full.html

Abstract

Images from the OSIRIS scientific imaging system onboard Rosetta show that the nucleus of 67P/Churyumov-Gerasimenko consists of two lobes connected by a short neck. The nucleus has a bulk density less than half that of water. Activity at a distance from the Sun of >3 astronomical units is predominantly from the neck, where jets have been seen consistently. The nucleus rotates about the principal axis of momentum. The surface morphology suggests that the removal of larger volumes of material, possibly via explosive release of subsurface pressure or via creation of overhangs by sublimation, may be a major mass loss process. The shape raises the question of whether the two lobes represent a contact binary formed 4.5 billion years ago, or a single body where a gap has evolved via mass loss.

Item URL in elib:https://elib.dlr.de/98643/
Document Type:Article
Title:On the nucleus structure and activity of comet 67P/Churyumov-Gerasimenko
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Sierks, HolgerMax-Planck-Institut für Sonnensystemforschung, 37077 Göttingen, Germany, E-mail: sierks (at) mps.mpg.deUNSPECIFIED
Barbieri, CesareUniversity of Padua, Dept. of Astronomy, Padova, ItalyUNSPECIFIED
Lamy, PhilippeLaboratoire d'Astrophysique MarseilleUNSPECIFIED
Rodrigo, RafaelInstituto de Astrofisica de AndaluciaUNSPECIFIED
Koschny, DetlefResearch and Scientific Support Dept, ESA, Noordwik, The NetherlandsUNSPECIFIED
Rickman, HansDepartment of Astronomy and Space Physics, Uppsala University, Box 515, SE-75120 Uppsala, SwedenUNSPECIFIED
Keller, Horst UweMax-Planck-Institute for Solar System Research, Katlenburg-LindauUNSPECIFIED
Agarwal, J.Max-Planck-Institut für SonnensystemforschungUNSPECIFIED
A’Hearn, MichaelMax-Planck-Institut für Sonnensystemforschung, 37077 Göttingen, GermanyUNSPECIFIED
Angrilli, FrancescoUniv. of Padova, ItalyUNSPECIFIED
Auger, Anne-ThereseAix Marseille Université, CNRS, Laboratoire d’Astrophysique de Marseille, UMR 7326, 13388 Marseille, FranceUNSPECIFIED
Barucci, AntonellaObservatoire de Paris-Meudon, FranceUNSPECIFIED
Bertaux, J.-L.LATMOS, Université Versailles Saint-Quentin-en-Yvelines (UVSQ), Guyancourt, FranceUNSPECIFIED
Bertini, IvanoUniversita di PadovaUNSPECIFIED
Besse, SebastienDepartment of Astronomy, University of Maryland, MD 20742-2421, USAUNSPECIFIED
Bodewits, DennisDepartment of Astronomy, University of Maryland, College Park, MD 20742, USAUNSPECIFIED
Capanna, ClaireLaboratoire d'Astrophysique de Marseille, FranceUNSPECIFIED
Cremonese, GabrieleINAF Osservatorio Astronomico di PadovaUNSPECIFIED
Da Deppo, VaniaConsiglio Nazionale delle Ricerche-Istituto Nazionale per la Fisica della Materia, Luxor, Padova, ItalyUNSPECIFIED
Davidsson, BjörnDepartment of Physics and Astronomy, Uppsala University, Uppsala, SwedenUNSPECIFIED
Debei, StefanUniversità di Padova, Center of Studies and Activities of Space (CISAS) "G.Colombo", Padova, ItalyUNSPECIFIED
De Cecco, MariolinoUniversità di Padova, Center of Studies and Activities of Space (CISAS) "G.Colombo", Padova, ItalyUNSPECIFIED
Ferri, FrancescaCISAS, Università di Padova, Padua, ItalyUNSPECIFIED
Fornasier, SoniaObservatoire de Paris-Meudon, FranceUNSPECIFIED
Fulle, MarcoINAF - Osservatorio Astronomico di Trieste, 34014 Trieste, ItalyUNSPECIFIED
Gaskell, Robert WPlanetary Science Institute, Tucson, CA, United States.UNSPECIFIED
Giacomini, L.University of PadovaUNSPECIFIED
Groussin, OlivierLab. d'Astrophysique de Marseille, FranceUNSPECIFIED
Gutierrez-Marques, PabloMax Planck Institute for Solar System ResearchUNSPECIFIED
Gutierrez Buenestado, PedroIAA-CSIC Granada, SpainUNSPECIFIED
Güttler, CarstenMax-Planck-Institut für SonnensystemforschungUNSPECIFIED
Hoekzema, NickMPS Katlenburg-LindauUNSPECIFIED
Hviid, StubbeMPI für SonnensystemforschungUNSPECIFIED
Ip, Wing-HuenInstitute for Space Science, National Central University, Chung Li, TaiwanUNSPECIFIED
Jorda, LaurentLaboratoire d'Astrophysique MarseilleUNSPECIFIED
Knollenberg, Jörgjoerg.knollenberg (at) dlr.deUNSPECIFIED
Kovács, GaborMTA-SE Research Group for Biophysics, Hungarian Academy of Sciences, H-1088 Budapest, Puskin u. 9, HungaryUNSPECIFIED
Kramm, RainerMax-Planck-Institut für SonnensystemforschungUNSPECIFIED
Kührt, EkkehardEkkehard.Kuehrt (at) dlr.deUNSPECIFIED
Küppers, MichaelMax-Planck Institut für SonnensystemforschungUNSPECIFIED
La Forgia, FiorangelaDepartment of Physics and Astronomy, University of Padova, 35122 Padova, ItalyUNSPECIFIED
Lara, Luisa M.IAA-CSIC Granada, SpainUNSPECIFIED
Lazzarin, MonicaDepartment of Astronomy, University of PaduaUNSPECIFIED
Leyrat, CédricUniversità di Padova, Via Venezia 15, 35131 Padova, Italy)UNSPECIFIED
Lopez Moreno, JosèInstituto de Astrofifica de Andalucia-Consejo Superior de Investigaciones Cientificas, Granada, SpainUNSPECIFIED
Magrin, SaraDipartimento di Astronomia, Università di Padova, Padova, ItalyUNSPECIFIED
Marchi, SimoneDepartment of Astronomy, University of PaduaUNSPECIFIED
Marzari, FrancescoUniversità di Padova, Departimento di Fisica, Padova, ItalyUNSPECIFIED
Massironi, MatteoINAF, Padova, IUNSPECIFIED
Michalik, HaraldInstitut für Datentechnik und Kommunikationsnetze (IDA), Technische Universität Braunschweig, Hans-Sommer-Str. 66, 38106 Braunschweig, GermanyUNSPECIFIED
Moissl, RichardMax-Planck-Institut für Sonnensystemforschung, Katlenburg-LindauUNSPECIFIED
Mottola, Stefanostefano.mottola (at) dlr.deUNSPECIFIED
Naletto, GiampieroUniversità di Padova, Departimento di Elettronica et Informatica, Padova, ItalyUNSPECIFIED
Oklay, NildaMax-Planck-Institut für SonnensystemforschungUNSPECIFIED
Pajola, MaurizioCISAS - Center for Studies and Activities for Space, University of PadovaUNSPECIFIED
Pertile, MarcoCISAS - Center for Studies and Activities for Space, University of PadovaUNSPECIFIED
Preusker, Frankfrank.preusker (at) dlr.deUNSPECIFIED
Sabau, LolaInstituto Nacional de Técnica Aérospacial, Torrejon de Ardoz, SpainUNSPECIFIED
Scholten, Frankfrank.scholten (at) dlr.deUNSPECIFIED
Snodgrass, ColinMax-Planck-Institut für Sonnensystemforschung, Göttingen, GermanyUNSPECIFIED
Thomas, NicolasMax-Planck-Institut für Aeronomie, Katlenburg-LindauUNSPECIFIED
Tubiana, CeciliaMPI für Sonnensystemforschung, Katlenburg-Lindau, GermanyUNSPECIFIED
Vincent, Jean-BaptisteMPI für SonnensystemforschungUNSPECIFIED
Wenzel, Klaus-PeterResearch and Scientific Support Department, European Space Agency, 2201 Noordwijk, The NetherlandsUNSPECIFIED
Zaccariotto, MircoCISAS, Padova Univ., Padova, ItalyUNSPECIFIED
Pätzold, MartinUniv. Cologne, GermanyUNSPECIFIED
Date:23 January 2015
Journal or Publication Title:Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:347
DOI :10.1126/science.aaa1044
Page Range:aaa1044-1
Publisher:American Association for the Advancement of Science (AAAS)
Series Name:Comtary Science
ISSN:0036-8075
Status:Published
Keywords:comets, comet 67P, nucleus strcutcure, activity
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 10:50
Last Modified:08 Mar 2018 18:51

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