Synthesis of the morphological description of cometary dust at comet 67P/Churyumov-Gerasimenko

Güttler, C. and Mannel, T. and Rotundi, A. and Merouane, S. and Fulle, M. and Tóth, Imre (2019) Synthesis of the morphological description of cometary dust at comet 67P/Churyumov-Gerasimenko. ASTRONOMY & ASTROPHYSICS, 630. ISSN 0004-6361

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Abstract

Before Rosetta, the space missions Giotto and Stardust shaped our view on cometary dust, supported by plentiful data from Earth base observations and interplanetary dust particles collected in the Earth' atmosphere. The Rosetta mission at comet 67P/Churyumov-Gerasimenko wa equipped with a multitude of instruments designed to study cometar dust. While an abundant amount of data was presented in severa individual papers, many focused on a dedicated measurement or topic Different instruments, methods, and data sources provide differen measurement parameters and potentially introduce different biases. Thi can be an advantage if the complementary aspect of such a complex dat set can be exploited. However, it also poses a challenge in th comparison of results in the first place. The aim of this work therefor is to summarize dust results from Rosetta and before. We establish simple classification as a common framework for intercomparison. Thi classification is based on the dust particle structure, porosity, an strength and also on its size. Depending on the instrumentation, thes are not direct measurement parameters, but we chose them because the were the most reliable for deriving our model. The propose classification has proved helpful in the Rosetta dust community, and w offer it here also for a broader context. In this manner, we hope t better identify synergies between different instruments and methods i the future

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