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    Regional unit definition for the nucleus of comet 67P/Churyumov-Gerasimenko on the SHAP7 model

    Thomas, N. and El-Maarry, Mohamed Ramy and Theologou, P. and Preusker, F. and Scholten, F. and Jorda, L. and Hviid, S.F. and Marschall, R. and Kührt, E. and Naletto, G. and Sierks, H. and Lamy, P.L. and Rodrigo, R. and Koschny, D. and Davidsson, B. and Barucci, M.A. and Bertaux, J.L. and Bertini, I. and Bodewits, D. and Cremonese, G. and Da Deppo, V. and Debei, S. and De Cecco, M. and Fornasier, S. and Fulle, M. and Groussin, O. and Gutièrrez, P.J. and Güttler, C. and Ip, W.H. and Keller, H.U. and Knollenberg, J. and Lara, L.M. and Lazzarin, M. and Lòpez-Moreno, J.J. and Marzari, F. and Tubiana, C. and Vincent, J.B. (2018) Regional unit definition for the nucleus of comet 67P/Churyumov-Gerasimenko on the SHAP7 model. Planetary and Space Science , ISSN 0032-0633. (In Press)

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    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.

    Metadata

    Item Type: Article
    Keyword(s) / Subject(s): Rosetta, 67P/Churyumov-Gerasimenko, Nucleus, Morphology
    School: Birkbeck Schools and Departments > School of Science > Earth and Planetary Sciences
    Depositing User: Administrator
    Date Deposited: 17 Oct 2018 15:18
    Last Modified: 27 Jul 2019 16:41
    URI: http://eprints.bbk.ac.uk/id/eprint/24727

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