Dust-to-Gas and Refractory-to-Ice Mass Ratios of Comet 67P/Churyumov-Gerasimenko from Rosetta Observations
Autor: | Ekkehard Kührt, Nicolas Biver, Dominique Bockelée-Morvan, Raphael Marschall, Mathieu Choukroun, Matthew Taylor, Nicolas Thomas, Kathrin Altwegg, Martin Hilchenbach, Martin Pätzold, Alain Herique, Joanna Drążkowska |
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Přispěvatelé: | Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), Physikalisches Institut [Bern], Universität Bern [Bern], DLR Institut für Planetenforschung, Deutsches Zentrum für Luft- und Raumfahrt [Berlin] (DLR), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA (UMR_8109)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Ludwig Maximilian University of Munich [Germany] (LMU München), Institut de Planétologie et d'Astrophysique de Grenoble (IPAG), Centre National d'Études Spatiales [Toulouse] (CNES)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ), Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA), Max-Planck-Institut für Sonnensystemforschung (MPS), Max-Planck-Gesellschaft, Rhenish Institute for Environmental Research (RIU), University of Cologne, RSSD of ESA, ESTEC, Noordwijk, The Netherlands, Physics Institute, University of Bern, 3012 Bern, Switzerland |
Jazyk: | angličtina |
Rok vydání: | 2020 |
Předmět: |
Physics
67P/Churyumov-Gerasimenko 010504 meteorology & atmospheric sciences [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] 520 Astronomy refractory-to-ice ratio Comet Astronomy and Astrophysics Astrophysics Mass ratio 620 Engineering 01 natural sciences Planetary science Space and Planetary Science [SDU]Sciences of the Universe [physics] 0103 physical sciences Rosetta Comets Refractory-to-Ice mass ratio Single point Dust-to-gas ratio 010303 astronomy & astrophysics Institut für Optische Sensorsysteme Refractory (planetary science) 0105 earth and related environmental sciences |
Zdroj: | Journal Space Science Reviews Journal Space Science Reviews, 2020, ⟨10.1007/s11214-020-00662-1⟩ Space Science Reviews Space Science Reviews, Springer Verlag, 2020, 216 (3), ⟨10.1007/s11214-020-00662-1⟩ Choukroun, Mathieu; Altwegg, Kathrin; Kührt, Ekkehard; Biver, Nicolas; Bockelée-Morvan, Dominique; Drążkowska, Joanna; Hérique, Alain; Hilchenbach, Martin; Marschall, Raphael; Pätzold, Martin; Taylor, Matthew G. G. T.; Thomas, Nicolas (2020). Dust-to-Gas and Refractory-to-Ice Mass Ratios of Comet 67P/Churyumov-Gerasimenko from Rosetta Observations. Space science reviews, 216(3) Springer 10.1007/s11214-020-00662-1 |
ISSN: | 0038-6308 1572-9672 |
DOI: | 10.1007/s11214-020-00662-1⟩ |
Popis: | This chapter reviews the estimates of the dust-to-gas and refractory-to-ice mass ratios derived fromRosettameasurements in the lost materials and the nucleus of 67P/Churyumov-Gerasimenko, respectively. First, the measurements byRosettainstruments are described, as well as relevant characteristics of 67P. The complex picture of the activity of 67P, with its extreme North-South seasonal asymmetry, is presented. Individual estimates of the dust-to-gas and refractory-to-ice mass ratios are then presented and compared, showing wide ranges of plausible values.Rosetta’s wealth of information suggests that estimates of the dust-to-gas mass ratio made in cometary comae at a single point in time may not be fully representative of the refractory-to-ice mass ratio within the cometary nuclei being observed. |
Databáze: | OpenAIRE |
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