title: COMETARY SCIENCE. 67P/Churyumov-Gerasimenko surface properties as derived from CIVA panoramic images.
abstract: The structure and composition of cometary constituents, down to their microscopic scale, are critical witnesses of the processes and ingredients that drove the formation and evolution of planetary bodies toward their present diversity. On board Rosetta's lander Philae, the Comet Infrared and Visible Analyser (CIVA) experiment took a series of images to characterize the surface materials surrounding the lander on comet 67P/Churyumov-Gerasimenko. Images were collected twice: just after touchdown, and after Philae finally came to rest, where it acquired a full panorama. These images reveal a fractured surface with complex structure and a variety of grain scales and albedos, possibly constituting pristine cometary material.
authors.affiliation: Institut d'Astrophysique Spatiale (IAS), CNRS/Université Paris Sud, Orsay, France. bibring@ias.u-psud.fr.
authors.forename: J-P
authors.initials: JP
authors.lastname: Bibring
authors.affiliation: Institut d'Astrophysique Spatiale (IAS), CNRS/Université Paris Sud, Orsay, France.
authors.forename: Y
authors.initials: Y
authors.lastname: Langevin
authors.affiliation: Institut d'Astrophysique Spatiale (IAS), CNRS/Université Paris Sud, Orsay, France.
authors.forename: J
authors.initials: J
authors.lastname: Carter
authors.affiliation: Institut d'Astrophysique Spatiale (IAS), CNRS/Université Paris Sud, Orsay, France.
authors.forename: P
authors.initials: P
authors.lastname: Eng
authors.affiliation: Institut d'Astrophysique Spatiale (IAS), CNRS/Université Paris Sud, Orsay, France.
authors.forename: B
authors.initials: B
authors.lastname: Gondet
authors.affiliation: Laboratoire d'Astrophysique de Marseille (LAM), UMR7326,CNRS/INSU/Université Aix-Marseille, France.
authors.forename: L
authors.initials: L
authors.lastname: Jorda
authors.affiliation: Laboratoire Planétologie et Géodynamique, CNRS UMR6112 and Université de Nantes, Nantes, France.
authors.forename: S
authors.initials: S
authors.lastname: Le Mouélic
authors.affiliation: Deutschen Zentrum für Luft und Raumfahrt (DLR), Institute of Planetary Research, Berlin, Germany.
authors.forename: S
authors.initials: S
authors.lastname: Mottola
authors.affiliation: Institut d'Astrophysique Spatiale (IAS), CNRS/Université Paris Sud, Orsay, France.
authors.forename: C
authors.initials: C
authors.lastname: Pilorget
authors.affiliation: Institut d'Astrophysique Spatiale (IAS), CNRS/Université Paris Sud, Orsay, France.
authors.forename: F
authors.initials: F
authors.lastname: Poulet
authors.affiliation: Institut d'Astrophysique Spatiale (IAS), CNRS/Université Paris Sud, Orsay, France.
authors.forename: M
authors.initials: M
authors.lastname: Vincendon