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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 
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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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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