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

DOI: 
10.1051/0004-6361/201834751
Publication date: 
01/10/2019
Main author: 
Güttler, C.
IAA authors: 
Moreno, F.
Authors: 
Güttler, C.;Mannel, T.;Rotundi, A.;Merouane, S.;Fulle, M.;Bockelée-Morvan, D.;Lasue, J.;Levasseur-Regourd, A. C.;Blum, J.;Naletto, G.;Sierks, H.;Hilchenbach, M.;Tubiana, C.;Capaccioni, F.;Paquette, J. A.;Flandes, A.;Moreno, F.;Agarwal, J.;Bodewits, D.;Bertini, I.;Tozzi, G. P.;Hornung, K.;Langevin, Y.;Krüger, H.;Longobardo, A.;Della Corte, V.;Tóth, I.;Filacchione, G.;Ivanovski, S. L.;Mottola, S.;Rinaldi, G.
Journal: 
Astronomy and Astrophysics
Refereed: 
Yes
Publication type: 
Article
Volume: 
630
Pages: 
A24
Abstract: 
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.
Database: 
ADS
SCOPUS
URL: 
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85082649521&doi=10.1051%2f0004-6361%2f201834751&partnerID=40&md5=a70773fbfce1208b68e94e85dc3ea0ba
ADS Bibcode: 
2019A&A...630A..24G
Keywords: 
comets: general;comets: individual: 67P/Churyumov-Gerasimenko;space vehicles: instruments;Astrophysics - Earth and Planetary Astrophysics