The morphological diversity of comet 67P/Churyumov-Gerasimenko

Author:

Thomas Nicolas1,Sierks Holger2,Barbieri Cesare3,Lamy Philippe L.4,Rodrigo Rafael5,Rickman Hans6,Koschny Detlef7,Keller Horst Uwe89,Agarwal Jessica2,A'Hearn Michael F.10,Angrilli Francesco11,Auger Anne-Therese12,Barucci M. Antonella13,Bertaux Jean-Loup14,Bertini Ivano15,Besse Sebastien7,Bodewits Dennis10,Cremonese Gabriele16,Da Deppo Vania17,Davidsson Björn18,De Cecco Mariolino19,Debei Stefano11,El-Maarry Mohamed Ramy1,Ferri Francesca15,Fornasier Sonia13,Fulle Marco20,Giacomini Lorenza21,Groussin Olivier12,Gutierrez Pedro J.22,Güttler Carsten2,Hviid Stubbe F.29,Ip Wing-Huen23,Jorda Laurent24,Knollenberg Jörg9,Kramm J.-Rainer2,Kührt Ekkehard9,Küppers Michael25,La Forgia Fiorangela3,Lara Luisa M.22,Lazzarin Monica3,Moreno Josè J. Lopez22,Magrin Sara3,Marchi Simone26,Marzari Francesco3,Massironi Matteo1521,Michalik Harald27,Moissl Richard25,Mottola Stefano9,Naletto Giampiero151728,Oklay Nilda2,Pajola Maurizio15,Pommerol Antoine1,Preusker Frank9,Sabau Lola29,Scholten Frank9,Snodgrass Colin230,Tubiana Cecilia2,Vincent Jean-Baptiste2,Wenzel Klaus-Peter7

Affiliation:

1. Physikalisches Institut, Sidlerstrasse 5, University of Bern, 3012, Bern, Switzerland.

2. Max-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg, 3, 37077, Göttingen, Germany.

3. Department of Physics and Astronomy, University of Padova, Vicolo dell'Osservatorio 3, 35122 Padova, Italy.

4. Laboratoire d'Astrophysique de Marseille, UMR 7326, CNRS, and Aix Marseille Université, 38 Rue Frédéric Joliot-Curie, 13388 Marseille Cedex 13, France.

5. International Space Science Institute, Hallerstraße 6, 3012 Bern, Switzerland, and Centro de Astrobiología, Consejo Superior de Investigaciones Cientificas - Instituto Nacional de Tecnica Aeroespacial, 28850 Torrejón de Ardoz, Madrid, Spain.

6. Department of Physics and Astronomy, Uppsala University, Box 516, SE-75120 Uppsala, Sweden, and Polish Academy of Sciences Space Research Center, Bartycka 18A, PL-00716 Warszawa, Poland.

7. Scientific Support Office, European Space Agency, 2201, Noordwijk, Netherlands.

8. Institute for Geophysics and Extraterrestrial Physics, Technische Universität Braunschweig, 38106, Braunschweig, Germany.

9. Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Planetenforschung, Asteroiden und Kometen, Rutherfordstraße 2, 12489 Berlin, Germany.

10. Department of Astronomy, University of Maryland, College Park, MD 20742-2421, USA.

11. Department of Industrial Engineering, University of Padova, via Venezia 1, 35131 Padova, Italy.

12. Aix Marseille Université, CNRS, Laboratoire d’Astrophysique de Marseille, UMR 7326, 38 rue Frédéric Joliot-Curie, 13388 Marseille, France.

13. Laboratoire d’Etudes Spatiales et d’Instrumentation en Astrophysique, Observatoire de Paris, CNRS, Université Paris 06, Université Paris-Diderot, 5 Place J. Janssen, 92195, Meudon, France.

14. Laboratoire Atmosphères, Milieux, Observations Spatiales, CNRS/UVSQ/IPSL, 11 Boulevard d'Alembert, 78280, Guyancourt, France.

15. Centro di Ateneo di Studi ed Attivitá Spaziali, “Giuseppe Colombo” (CISAS), University of Padova, Via Venezia 15, 35131 Padova, Italy.

16. Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, 35122 Padova, Italy.

17. CNR-IFN UOS Padova LUXOR, Via Trasea, 7, 35131 Padova, Italy.

18. Department of Physics and Astronomy, Uppsala University, 75120 Uppsala, Sweden.

19. UNITN, Universitá di Trento, Via Mesiano, 77, 38100 Trento, Italy.

20. INAF, Osservatorio Astronomico, Via Tiepolo 11, 34014 Trieste, Italy.

21. Dipartimento di Geoscienze, University of Padova, via G. Gradenigo 6, 35131 Padova, Italy.

22. Instituto de Astrofísica de Andalucía (CSIC), c/ Glorieta de la Astronomía s/n, 18008 Granada, Spain.

23. National Central University, Graduate Institute of Astronomy, 300 Chung-Da Road, Chung-Li 32054, Taiwan.

24. Laboratoire d'Astrophysique de Marseille, 38 Rue de Frédéric Joliot-Curie, 13388 Marseille Cedex 13, France.

25. Science Operations Department, European Space Astronomy Centre/European Space Agency, Post Office Box 78, 28691 Villanueva de la Canada, Madrid, Spain.

26. Solar System Exploration Research Virtual Institute, Southwest Research Institute, 1050 Walnut Street, Suite 300, Boulder, CO 80302, USA.

27. Institut für Datentechnik und Kommunikationsnetze der Technische Universität Braunschweig, Hans-Sommer-Strasse 66, 38106 Braunschweig, Germany.

28. University of Padova, Department of Information Engineering, Via Gradenigo 6/B, 35131 Padova, Italy.

29. Instituto Nacional de Tecnica Aeroespacial, Carretera de Ajalvir, 28850 Torrejon de Ardoz (Madrid), Spain.

30. Planetary and Space Sciences, Department of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK.

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.

Funder

Swedish National Space Board

Centre National d’Etudes Spatiales

Deutschen Zentrums für Luft- und Raumfahrt

Ministerio de Educación, Cultura y Deporte

Agenzia Spaziale Italiana

Ministry of Science and Technology, Taiwan

Polish National Science Center

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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