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Images of Asteroid 21 Lutetia: A Remnant Planetesimal from the Early Solar System

Sierks, H. and Lamy, P. and Barbieri, C. and Koschny, D. and Rickman, H. and Rodrigo, R. and A'Hearn, M. and Angrilli, F. and Barucci, Antonella and Bertaux, J.-L. and Bertini, I. and Besse, S. and Carry, B and Cremonese, Gabriele and da Deppo, V. and Davidsson, B. and Debei, S. and De Cecco, M. and De Leon, J. and Ferri, F. and Fornasier, Sonia and Fulle, M. and Hviid, S. and Gaskell, Robert W. and Groussin, Olivier and Gutierrez, P.J. and Ip, W.-H. and Jorda, L and Kaasalainen, M. and Keller, H. U. and Knollenberg, J. and Kramm, R. and Kührt, Ekkehard and Küppers, Michael and Lara, Luisa M. and Lazzarin, M. and Leyrat, C. and Moreno, J.J. and Magrin, S. and Marchi, S. and Marzari, F. and Massironi, Matteo and Michalik, H. and Moissl, R. and Naletto, G. and Preusker, Frank and Sabau, L. and Sabolo, W. and Scholten, Frank and Snodgrass, C. and Thomas, N. and Tubiana, C. and Vernazza, P and Vincent, J.B. and Wenzel, K.-P. and Andert, T. and Pätzold, M and Weiss, B.P. (2011) Images of Asteroid 21 Lutetia: A Remnant Planetesimal from the Early Solar System. Science, 334 (6055), pp. 487-490. American Association for the Advancement of Science (AAAS). doi: 10.1126/science.1207325.

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Images obtained by the Optical, Spectroscopic, and Infrared Remote Imaging System (OSIRIS) cameras onboard the Rosetta spacecraft reveal that asteroid 21 Lutetia has a complex geology and one of the highest asteroid densities measured so far, 3.4 ± 0.3 grams per cubic centimeter. The north pole region is covered by a thick layer of regolith, which is seen to flow in major landslides associated with albedo variation. Its geologically complex surface, ancient surface age, and high density suggest that Lutetia is most likely a primordial planetesimal. This contrasts with smaller asteroids visited by previous spacecraft, which are probably shattered bodies, fragments of larger parents, or reaccumulated rubble piles.

Item URL in elib:https://elib.dlr.de/73321/
Document Type:Article
Title:Images of Asteroid 21 Lutetia: A Remnant Planetesimal from the Early Solar System
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Lamy, P.Laboratoire d'Astronomie Spatiale, Marseille, FranceUNSPECIFIED
Barbieri, C.University of Padova, Department of AstronomyUNSPECIFIED
Koschny, D. European Space Agency (ESA), 2201 Noordwijk, Netherlands), UNSPECIFIED
Rickman, H. Department of Physics and Astronomy, Uppsala University, 75120 Uppsala, SwedenUNSPECIFIED
A'Hearn, M.U. MarylandUNSPECIFIED
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.AC(University of Padova, Department of AstronomyUNSPECIFIED
Besse, S.Instituto de Astrofifica de Andalucia-Consejo Superior de Investigaciones Cientificas, Granada, SpainUNSPECIFIED
Carry, BObservatoire de ParisUNSPECIFIED
Cremonese, GabrieleINAF, Padova, IUNSPECIFIED
Davidsson, B.Astronomiska observatoriet, 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
De Leon, J.University of Padova, Department of AstronomyUNSPECIFIED
Ferri, F.University of Padova, Padova, ItalyUNSPECIFIED
Fornasier, SoniaObservatoire de Paris-Meudon, FranceUNSPECIFIED
Fulle, M.INAF - Osservatorio Astronomico di Trieste, Trieste, ItalyUNSPECIFIED
Gaskell, Robert W.Planetary Science InstituteUNSPECIFIED
Groussin, OlivierLab. d'Astrophysique de Marseille, FranceUNSPECIFIED
Gutierrez, P.J.IAA-CSIC, Granada, SpainUNSPECIFIED
Ip, W.-H.Institute for Space Science, National Central University, 32054 Chung-Li, TaiwanUNSPECIFIED
Kaasalainen, M.Rolf Nevanlinna Institute, Helsinki, FinlandUNSPECIFIED
Keller, H. U.Max-Planck-Institut für Sonnensystemforschung, Katlenburg-LindauUNSPECIFIED
Knollenberg, J.joerg.knollenberg (at) dlr.deUNSPECIFIED
Kührt, Ekkehardekkehard.kuehrt (at) dlr.deUNSPECIFIED
Küppers, MichaelMax-Planck-Institut für SonnensystemforschungUNSPECIFIED
Lara, Luisa M.IAA-CSIC Granada, SpainUNSPECIFIED
Lazzarin, M.Department of Astronomy, University of PaduaUNSPECIFIED
Leyrat, C.Università di Padova, Via Venezia 15, 35131 Padova, Italy)UNSPECIFIED
Moreno, J.J.Instituto de Astrofísica de Andalucía, Consejo Superior de Investigationes Cientificas (CSIC), 18080 Granada, SpainUNSPECIFIED
Magrin, S.Lab. d'Astrophysique de Marseille, FranceUNSPECIFIED
Marchi, S.Department of Astronomy, University of PaduaUNSPECIFIED
Marzari, F.Università di Padova, Departimento di Fisica, Padova, ItalyUNSPECIFIED
Massironi, MatteoINAF, Padova, IUNSPECIFIED
Moissl, R.Max-Planck-Institut für Sonnensystemforschung, D-37191 Katlenburg-Lindau, GermanyUNSPECIFIED
Naletto, G.Università di Padova, Departimento di Elettronica et Informatica, Padova, ItalyUNSPECIFIED
Preusker, Frankfrank.preusker (at) dlr.deUNSPECIFIED
Sabau, L.Instituto Nacional de Técnica Aérospacial, Torrejon de Ardoz, SpainUNSPECIFIED
Sabolo, W.Instituto de Astrofifica de Andalucia-Consejo Superior de Investigaciones Cientificas, Granada, SpainUNSPECIFIED
Scholten, Frankfrank.scholten (at) dlr.deUNSPECIFIED
Snodgrass, C.Queen's University, Belfast, UKUNSPECIFIED
Thomas, N.Physikalisches Institut der Universität Bern, Sidlerstrasse 5, 3012 Bern, SwitzerlandUNSPECIFIED
Tubiana, C.Max-Planck-Institut fuer Sonnensystemforschung, GermanyUNSPECIFIED
Vincent, J.B.Max-Planck-Institut fuer Sonnensystemforschung, GermanyUNSPECIFIED
Wenzel, K.-P.European Space and Technology Centre, Noordwijk, NetherlandsUNSPECIFIED
Andert, T.Institut für Raumfahrttechnik, Universität der Bundeswehr München, Neubiberg, GermanyUNSPECIFIED
Pätzold, MUniversität KölnUNSPECIFIED
Weiss, B.P.Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USAUNSPECIFIED
Date:1 October 2011
Journal or Publication Title:Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1126/science.1207325
Page Range:pp. 487-490
Publisher:American Association for the Advancement of Science (AAAS)
Keywords:Asteroids, rubble piles
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Project ROSETTA Instruments
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Deposited By: Knollenberg, Dr.rer.nat. Jörg
Deposited On:10 Jan 2012 09:40
Last Modified:08 Mar 2018 18:50

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