Geomorphological mapping of comet 67P/Churyumov–Gerasimenko’s Southern hemisphere

Jui-Chi Lee 1 Matteo Massironi 2, 3 Wing-Huen Ip 4, 5, 6 Lorenza Giacomini 2 Sabrina Ferrari 3 Luca Penasa 3 Mohamed Ramy El-Maarry 7 Maurizio Pajola 8, 3 Ian-Lin Lai 4 Zhong-Yi Lin 6 Francesca Ferri 3 Holger Sierks 9 Cesare Barbieri 10 Philippe Lamy 11 Rafael Rodrigo 12 Detlef Koschny 13 Hans Rickman 14 Horst Uwe Keller 15 Jessica Agarwal 9 Michael A’hearn 9, 16 Maria Antonella Barucci 17 Jean-Loup Bertaux 18 Ivano Bertini 3 Gabriele Cremonese 19 Vania Da Deppo 20 Björn Davidsson 14 Stefano Debei 21 Mariolino De Cecco 22 Jakob Deller 9 Sonia Fornasier 17 Marc Fulle 23 Olivier Groussin 11 Pedro J. Gutiérrez 24 Carsten Güttler 7 Marc Hofmann 9 Stubbe F. Hviid 9, 25 Laurent Jorda 11 Jörg Knollenberg 25 Gabor Kovacs 9 J.-Rainer Kramm 9 Ekkehard Kührt 25 Michael Küppers 26 Luisa M. Lara 24 Monica Lazzarin 10 Francesco Marzari 10 Josè J. Lopez Moreno 24 Giampiero Naletto 27 Nilda Oklay 9 Xian Shi 9 Nicolas Thomas 7 Cecilia Tubiana 9 Jean-Baptiste Vincent 9
1 Department of Earth Sciences [Taïwan)
2 Dipartimento di Geoscienze [Padova]
3 CISAS - Centro di Ateneo di Studi e Attività Spaziali “Giuseppe Colombo”
4 Institute of Space Science [Taiwan]
5 SSI - Space Science Institute [Macau]
6 IANCU - Institute of Astronomy [Taiwan]
7 Physikalisches Institut [Bern]
8 ARC - NASA Ames Research Center
9 MPS - Max-Planck-Institut für Sonnensystemforschung
10 Dipartimento di Fisica e Astronomia "Galileo Galilei"
11 LAM - Laboratoire d'Astrophysique de Marseille
12 CAB - Centro de Astrobiologia [Madrid]
13 ESTEC - European Space Research and Technology Centre
14 Department of Physics and Astronomy [Uppsala]
15 IGEP - Institut für Geophysik und Extraterrestrische Physik [Braunschweig]
16 Department of Astronomy [College Park]
17 LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique
18 IMPEC - LATMOS
LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales
19 OAPD - INAF - Osservatorio Astronomico di Padova
20 IFN - CNR Institute for Photonics and Nanotechnologies
21 Department of Industrial Engineering [Padova]
22 University of Trento [Trento]
23 OAT - INAF - Osservatorio Astronomico di Trieste
24 IAA - Instituto de Astrofísica de Andalucía
25 DLR Institut für Planetenforschung
26 ESAC - European Space Astronomy Center
27 DEI - Department of Information Engineering [Padova]
Abstract : In 2015 May, the Southern hemisphere of comet 67P/Churyumov–Gerasimenko became visible by the OSIRIS cameras on-board the Rosetta spacecraft. The resolution was high enough to carry out a detailed analysis of the surface morphology, which is quite different from the Northern hemisphere. Previous works show that fine particle deposits are the most extensive geological unit in the Northern hemisphere. In contrast, the Southern hemisphere is dominated by outcropping consolidated terrain. In this work, we provide geomorphological maps of the Southern hemisphere with the distinction of both geological units and linear features. The geomorphological maps described in this study allow us to gain a better understanding of the processes shaping the comet nucleus and the distribution of primary structures such as fractures and strata.
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Article dans une revue
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2016, 462 (Suppl_1), pp.S573 - S592. 〈10.1093/mnras/stx450〉
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Jui-Chi Lee, Matteo Massironi, Wing-Huen Ip, Lorenza Giacomini, Sabrina Ferrari, et al.. Geomorphological mapping of comet 67P/Churyumov–Gerasimenko’s Southern hemisphere. Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2016, 462 (Suppl_1), pp.S573 - S592. 〈10.1093/mnras/stx450〉. 〈insu-01495402〉

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