Volume 630, October 2019
Rosetta mission full comet phase results
|Number of page(s)||15|
|Section||Planets and planetary systems|
|Published online||20 September 2019|
Synthesis of the morphological description of cometary dust at comet 67P/Churyumov-Gerasimenko
Max Planck Institute for Solar System Research,
2 Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, 8042 Graz, Austria
3 Physics Institute, University of Graz, Universitätsplatz 5, 8010 Graz, Austria
4 INAF – Istituto di Astrofisica e Planetologia Spaziali, Via Fosso del Cavaliere 100, 00133 Rome, Italy
5 Dipartimento di Scienze e Tecnologie, Universitá degli Studi di Napoli Parthenope, CDN IC4, 80143 Naples, Italy
6 INAF – Osservatorio Astronomico, Via Tiepolo 11, 34143 Trieste, Italy
7 LESIA, Observatoire de Paris, Université PSL, CNRS, Université Paris Diderot, Sorbonne Paris Cité, Sorbonne Université, 5 place J. Janssen, 92195 Meudon Principal Cedex, France
8 IRAP, Université de Toulouse, CNRS, UPS, CNES, Toulouse, France
9 LATMOS, Sorbonne Université, CNRS, UVSQ, Campus Pierre et Marie Curie, BC 102, 4 place Jussieu, 75005 Paris, France
10 Institut für Geophysik und extraterrestrische Physik, Technische Universität Braunschweig, Mendelssohnstr. 3, 38106 Braunschweig, Germany
11 Department of Physics and Astronomy “Galileo Galilei”, University of Padova, Via Marzolo 8, 35131 Padova, Italy
12 Center of Studies and Activities for Space (CISAS) “G. Colombo”, University of Padova, Via Venezia 15, 35131 Padova, Italy
13 CNR-IFN UOS Padova LUXOR, Via Trasea 7, 35131 Padova, Italy
14 Ciencias Espaciales, Instituto de Geofísica, Universidad Nacional Autónoma de México, Coyoacán, Mexico City 04510, Mexico
15 Instituto de Astrofísica de Andalucía (CSIC), c/ Glorieta de la Astronomia s/n, 18008 Granada, Spain
16 Department of Physics and Astronomy “Galileo Galilei”, University of Padova, Vicolo dell’Osservatorio 3, 35122 Padova, Italy
17 Osservatorio Astrofisico di Arcetri, INAF, Firenze, Italy
18 Universität der Bundeswehr München, LRT-7, 85577 Neubiberg, Germany
19 Institut d’Astrophysique Spatiale, CNRS/Université Paris-Sud, 91405 Orsay, France
20 Physics Department, 206 Allison Laboratory, Auburn University, Auburn, AL 36849, USA
21 Konkoly Observatory, PO Box 67, 1525 Budapest, Hungary
22 Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Planetenforschung, Rutherfordstraße 2, 12489 Berlin, Germany
Accepted: 26 February 2019
Before Rosetta, the space missions Giotto and Stardust shaped our view on cometary dust, supported by plentiful data from Earth based observations and interplanetary dust particles collected in the Earth’s atmosphere. The Rosetta mission at comet 67P/Churyumov-Gerasimenko was equipped with a multitude of instruments designed to study cometary dust. While an abundant amount of data was presented in several individual papers, many focused on a dedicated measurement or topic. Different instruments, methods, and data sources provide different measurement parameters and potentially introduce different biases. This can be an advantage if the complementary aspect of such a complex data set can be exploited. However, it also poses a challenge in the comparison of results in the first place. The aim of this work therefore is to summarize dust results from Rosetta and before. We establish a simple classification as a common framework for intercomparison. This classification is based on the dust particle structure, porosity, and strength and also on its size. Depending on the instrumentation, these are not direct measurement parameters, but we chose them because they were the most reliable for deriving our model. The proposed classification has proved helpful in the Rosetta dust community, and we offer it here also for a broader context. In this manner, we hope to better identify synergies between different instruments and methods in the future.
Key words: comets: general / comets: individual: 67P/Churyumov-Gerasimenko / space vehicles: instruments
© C. Güttler et al. 2019
Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Open Access funding provided by Max Planck Society.
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