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Gas and Dust Activity of the Nucleus of 67P/Churyumov-Gerasimenko: Some Preliminary Results

  • M. Teresa Capria
  • Angioletta Coradini
  • M. Cristina De Sanctis
  • Marco Fulle
Part of the Astrophysics and Space Science Library book series (ASSL, volume 311)

Abstract

The planning of planetary missions and the operations preparation of the instruments payload require a knowledge as much as possible accurate of the target. This knowledge cannot be obtained only from ground based observations and can be integrated by theoretical models. Comet 67P/Churyumov-Gerasimenko is the current selected target for the ESA ROSETTA mission. Presently, little is known about this comet, but the successful design of the mission, and in particular of the operations of the on-board scientific instruments, requires some preliminary knowledge of the comet physical parameters, such as surface temperature, percentage of active surface, intensity of gas and dust fluxes, and so on. These quantities cannot be determined only through ground-based observations, so predictive models of the thermal evolution and differentiation of a cometary nucleus can be used. We present here the results of the application of the nucleus evolution model developed at the IASF in Rome to the simulation of 67P/Churyumov-Gerasimenko. This nucleus model, used as a help in the planning of the VIRTIS instrument operations on Rosetta, is a one-dimensional model giving gas and dust fluxes, evolution of temperatures and composition along the orbit.

Keywords

Comet Nucleus Kuiper Belt Dust Production Perihelion Distance Dust Flux 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 2004

Authors and Affiliations

  • M. Teresa Capria
    • 1
  • Angioletta Coradini
    • 2
  • M. Cristina De Sanctis
    • 1
  • Marco Fulle
    • 3
  1. 1.Istituto di Astrofisica Spaziale e Fisica CosmicaCNR, ARTOVRomaItaly
  2. 2.Istitituto di Fisica dello Spazio InterplanetarioCNR, ARTOVRomaItaly
  3. 3.Osservatorio di TriesteINAFTriesteItaly

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