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

Thomas, Nicolas; El Maarry, M.R.; Theologou, Panagiotis; Preusker, F.; Scholten, F.; Jorda, L.; Hviid, S.F.; Marschall, Raphael; Kührt, E.; Naletto, G.; Sierks, H.; Lamy, P.L.; Rodrigo, R.; Koschny, D.; Davidsson, B.; Barucci, M.A.; Bertaux, J.L.; Bertini, I.; Bodewits, D.; Cremonese, G.; ... (2018). Regional unit definition for the nucleus of comet 67P/Churyumov-Gerasimenko on the SHAP7 model. Planetary and space science, 164, pp. 19-36. Elsevier 10.1016/j.pss.2018.05.019

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The previously defined regions on the nucleus of comet 67P/Churyumov-Gerasimenko have been 17 mapped back onto the 3D SHAP7 model of the nucleus (Preusker et al., 2017). The resulting regional 18 definition is therefore self-consistent with boundaries that are well defined in 3 dimensions. The 19 facets belonging to each region are provided as supplementary material. The shape model has then 20 been used to assess inhomogeneity of nucleus surface morphology within individual regions. Several 21 regions show diverse morphology. We propose sub-division of these regions into clearly identifiable 22 units (sub-regions) and a comprehensive table is provided. The surface areas of each sub-region 23 have been computed and statistics based on grouping of unit types are provided. The roughness of 24 each region is also provided in a quantitative manner using a technique derived from computer 25 graphics applications. The quantitative method supports the sub-region definition by showing that 26 differences between sub-regions can be numerically justified.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences
08 Faculty of Science > Physics Institute
08 Faculty of Science > Physics Institute > NCCR PlanetS

UniBE Contributor:

Thomas, Nicolas; Theologou, Panagiotis and Marschall, Raphael

Subjects:

500 Science > 520 Astronomy
600 Technology > 620 Engineering

ISSN:

0032-0633

Publisher:

Elsevier

Language:

English

Submitter:

Dora Ursula Zimmerer

Date Deposited:

04 Jul 2018 15:00

Last Modified:

22 Mar 2019 11:37

Publisher DOI:

10.1016/j.pss.2018.05.019

BORIS DOI:

10.7892/boris.118281

URI:

https://boris.unibe.ch/id/eprint/118281

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