Water vapor emission mechanism for 67P/Churyumov-Gerasimenko

Date Issued
2015
Author(s)
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Magni, G.
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Mottola, S.
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Ammannito, E.
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Bockelee-Morvan, D.
Abstract
In this work we study the water vapor emission by the the comet 67P/CG, the target of Rosetta mission. In this work we investigate the physical conditions required to generate short-lived outbursts in cometary nuclei. We applied a thermo-physical model [1, 2, 3] in order to evaluate the temperature of surface and subsurface layers and the water flux. Cyclic sublimation and water condensation in the sub-surface layers, due to the change of the illumination condition on the surface, is a likely mechanism to explain part of the water outgassing [5].
Coverage
European Planetary Science Congress 2015 (EPCS)
Start page
EPSC2015-501
Conferenece
European Planetary Science Congress 2015 (EPCS)
Conferenece place
Nantes, Francia
Conferenece date
27 September-2 October, 2015
Uri
Url
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2015EPSC...10..501F
Rights
open.access
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