@article{3e65a55d9e4342e391db90c35625c2d4,
title = "Regional unit definition for the nucleus of comet 67P/Churyumov-Gerasimenko on the SHAP7 model",
abstract = "The previously defined regions on the nucleus of comet 67P/Churyumov-Gerasimenko have been mapped back onto the 3D SHAP7 model of the nucleus (Preusker et al., 2017). The resulting regional definition is therefore self-consistent with boundaries that are well defined in 3 dimensions. The facets belonging to each region are provided as supplementary material. The shape model has then been used to assess inhomogeneity of nucleus surface morphology within individual regions. Several regions show diverse morphology. We propose sub-division of these regions into clearly identifiable units (sub-regions) and a comprehensive table is provided. The surface areas of each sub-region have been computed and statistics based on grouping of unit types are provided. The roughness of each region is also provided in a quantitative manner using a technique derived from computer graphics applications. The quantitative method supports the sub-region definition by showing that differences between sub-regions can be numerically justified.",
keywords = "67P/Churyumov-Gerasimenko, Morphology, Nucleus, Rosetta",
author = "N. Thomas and \{El Maarry\}, \{M. R.\} and P. Theologou and F. Preusker and F. Scholten and L. Jorda and Hviid, \{S. F.\} and R. Marschall and E. K{\"u}hrt and G. Naletto and H. Sierks and Lamy, \{P. L.\} and R. Rodrigo and D. Koschny and B. Davidsson and Barucci, \{M. A.\} and Bertaux, \{J. L.\} and I. Bertini and D. Bodewits and G. Cremonese and \{Da Deppo\}, V. and S. Debei and \{De Cecco\}, M. and S. Fornasier and M. Fulle and O. Groussin and Guti{\`e}rrez, \{P. J.\} and C. G{\"u}ttler and Ip, \{W. H.\} and Keller, \{H. U.\} and J. Knollenberg and Lara, \{L. M.\} and M. Lazzarin and L{\`o}pez-Moreno, \{J. J.\} and F. Marzari and C. Tubiana and Vincent, \{J. B.\}",
note = "Funding Information: The team from the University of Bern is supported through the Swiss National Science Foundation and through the NCCR PlanetS. The project has also received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 686709. This work was supported by the Swiss State Secretariat for Education, Research and Innovation (SERI) under contract number 16.0008-2. The opinions expressed and arguments employed herein do not necessarily reflect the official views of the Swiss Government.OSIRIS was built by a consortium led by the Max-Planck-Institut f{\"u}r Sonnensystemforschung, G{\"o}ttingen, Germany, in collaboration with CISAS, University of Padova, Italy, the Laboratoire d'Astrophysique de Marseille, France, the Instituto de Astrof{\'i}sica de Andalucia, CSIC, Granada, Spain, the Scientific Support Office of the European Space Agency, Noordwijk, The Netherlands, the Instituto Nacional de T{\'e}cnica Aeroespacial, Madrid, Spain, the Universidad Polit{\'e}chnica de Madrid, Spain, the Department of Physics and Astronomy of Uppsala University, Sweden, and the Institut f{\"u}r Datentechnik und Kommunikationsnetze der Technischen Universit{\"a}t Braunschweig, Germany. Funding Information: The team from the University of Bern is supported through the Swiss National Science Foundation and through the NCCR PlanetS. The project has also received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 686709 . This work was supported by the Swiss State Secretariat for Education, Research and Innovation (SERI) under contract number 16.0008-2 . The opinions expressed and arguments employed herein do not necessarily reflect the official views of the Swiss Government.OSIRIS was built by a consortium led by the Max-Planck-Institut f{\"u}r Sonnensystemforschung, G{\"o}ttingen, Germany, in collaboration with CISAS, University of Padova, Italy, the Laboratoire d{\textquoteright}Astrophysique de Marseille, France, the Instituto de Astrof{\'i}sica de Andalucia, CSIC, Granada, Spain, the Scientific Support Office of the European Space Agency, Noordwijk, The Netherlands, the Instituto Nacional de T{\'e}cnica Aeroespacial, Madrid, Spain, the Universidad Polit{\'e}chnica de Madrid, Spain, the Department of Physics and Astronomy of Uppsala University, Sweden, and the Institut f{\"u}r Datentechnik und Kommunikationsnetze der Technischen Universit{\"a}t Braunschweig, Germany. Publisher Copyright: {\textcopyright} 2018 The Authors",
year = "2018",
month = dec,
day = "1",
doi = "10.1016/j.pss.2018.05.019",
language = "British English",
volume = "164",
pages = "19--36",
journal = "Planetary and Space Science",
issn = "0032-0633",
publisher = "Elsevier Ltd",
}