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The morphological diversity of comet 67P/Churyumov-Gerasimenko

By Nicolas Thomas, Holger Sierks, Cesare Barbieri, Philippe L. Lamy, Rafael Rodrigo, Hans Rickman, Detlef Koschny, Horst Uwe Keller, Jessica Agarwal, Michael F. A'Hearn, Francesco Angrilli, Anne-Therese Auger, M. Antonella Barucci, Jean-Loup Bertaux, Ivano Bertini, Sebastien Besse, Dennis Bodewits, Gabriele Cremonese, Vania Da Deppo, Bjoern Davidsson, Mariolino De Cecco, Stefano Debei, Mohamed Ramy Elmaarry, Francesca Ferri, Sonia Fornasier, Marco Fulle, Lorenza Giacomini, Olivier Groussin, Pedro J. Gutierrez, Carsten Guettler, Stubbe F. Hviid, Wing-Huen Ip, Laurent Jorda, Joerg Knollenberg, J. Rainer Kramm, Ekkehard Kuehrt, Michael Kueppers, Fiorangela La Forgia, Luisa M. Lara, Monica Lazzarin, Jose J. Lopez Moreno, Sara Magrin, Simone Marchi, Francesco Marzari, Matteo Massironi, Harald Michalik, Richard Moissl, Stefano Mottola, Giampiero Naletto, Nilda Oklay, Maurizio Pajola, Antoine Pommerol, Frank Preusker, Lola Sabau, Frank Scholten, Colin Snodgrass, Cecilia Tubiana, Jean-Baptiste Vincent and Klaus-Peter Wenzel

Abstract

Images of comet 67P/Churyumov-Gerasimenko acquired by the OSIRIS (Optical, Spectroscopic and Infrared Remote Imaging System) imaging system onboard the European Space Agency's Rosetta spacecraft at scales of better than 0.8 meter per pixel show a wide variety of different structures and textures. The data show the importance of airfall, surface dust transport, mass wasting, and insolation weathering for cometary surface evolution, and they offer some support for subsurface fluidization models and mass loss through the ejection of large chunks of material

Topics: 530 Physics
Publisher: American Association for the Advancement of Science
Year: 2015
DOI identifier: 10.1126/science.aaa0440
OAI identifier: oai:boris.unibe.ch:81721
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