Journal articles

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 Atmospheric Sciences [Taoyuan City]

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 PLANETO - 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 Centre

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.

Document type :

Journal articles

Domain :

Sciences of the Universe [physics] / Astrophysics [astro-ph] / Earth and Planetary Astrophysics [astro-ph.EP]

Sciences of the Universe [physics] / Astrophysics [astro-ph] / Solar and Stellar Astrophysics [astro-ph.SR]

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