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The Composition of Comets

Abstract : This paper is the result of the International Cometary Workshop, held in Toulouse, France in April 2014, where the participants came together to assess our knowledge of comets prior to the ESA Rosetta Mission. In this paper, we look at the composition of the gas and dust from the comae of comets. With the gas, we cover the various taxonomic studies that have broken comets into groups and compare what is seen at all wavelengths. We also discuss what has been learned from mass spectrometers during flybys. A few caveats for our interpretation are discussed. With dust, much of our information comes from flybys. They include in situ analyses as well as samples returned to Earth for laboratory measurements. Remote sensing IR observations and polarimetry are also discussed. For both gas and dust, we discuss what instruments the Rosetta spacecraft and Philae lander will bring to bear to improve our understanding of comet 67P/Churyumov-Gerasimenko as “ground-truth” for our previous comprehensive studies. Finally, we summarize some of the initial Rosetta Mission findings.
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https://hal-insu.archives-ouvertes.fr/insu-01180547
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Submitted on : Monday, July 27, 2015 - 2:02:07 PM
Last modification on : Saturday, April 11, 2020 - 1:59:19 AM

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Anita L. Cochran, Anny Chantal Levasseur-Regourd, Martin Cordiner, Edith Hadamcik, Jérémie Lasue, et al.. The Composition of Comets. Space Science Reviews, Springer Verlag, 2015, 197, pp.9-46. ⟨10.1007/s11214-015-0183-6⟩. ⟨insu-01180547⟩

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