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)


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.


Comet Nucleus Kuiper Belt Dust Production Perihelion Distance Dust Flux 
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  1. Beliaev, N.A., Kresak, L. and Pittich, E.M. (1986). Catalogue of short -period comets, Bratislava: Slovak Academy of Sciences, Astronomical Institute.Google Scholar
  2. Capria, M.T., Coradini, A., De Sanctis, M.C. and Orosei, R. (2000). CO emission mechanisms in C/1995 O1 (Hale-Bopp). AandA, 357: 359.Google Scholar
  3. Carusi, A., Kresak, L., Perozzi, E. and Valsecchi, G.B. (1985). Long-term evolution of short-period comets. Bristol (England and Accord, MA, Adam Hilger, Ltd. ): 272.Google Scholar
  4. Coradini, A., Capaccioni, F., Capria, M.T., De Sanctis, M.C., Espinasse, S., Orosei, R., Salomone, M. and Federico, C. (1997a). Transition elemets between comets and asteroids. I: Thermal evolution models. Icarus 129: 317.ADSCrossRefGoogle Scholar
  5. Coradini, A., Capaccioni, F., Capria, M.T., De Sanctis, M.C., Espinasse, S., Orosei, R., Salomone, M. and Federico, C. (1997b). Transition elemets between comets and asteroids. II: From the Kuiper Belt to NEO orbits Icarus 129: 337.ADSCrossRefGoogle Scholar
  6. De Sanctis, M.C., Capaccioni, F., Capria, M.T., Coradini, A., Federico, C., Orosei, R. and Salomone, M. (1999). Models of P/Wirtanen nucleus: active regions versus non-active regions. Planet. Space. Sci. 47: 855.ADSCrossRefGoogle Scholar
  7. Fulle, M., Barbieri, C., Cemonese, G., Rauer, H., Weiler, M., Milani, G. and Ligustri, R. (2004). The dust environment of comet 67P/Churyumov-Gerasimenko. AandA, submitted.Google Scholar
  8. Kamoun, P., Campbell, D., Pettengill, G. and Shapiro, I. (1998). Radar observations of three comets and detection of echoes from one: P/Grigg-Skjellerup. Planet. and Space Sci., 47: 23.ADSCrossRefGoogle Scholar
  9. Kidger, M.R. (2003). Dust production and coma morphology of 67P/Churyumov-Gerasimenko during the 2002–2003 apparition. Astronomy and Astrophysics, 408: 767.ADSCrossRefGoogle Scholar
  10. Kiselev, N.N. and Velichko, F.P. (1998). Polarimetry and Photometry of Comet C/1996 B2 Hyakutake. Icarus, 133: 286.ADSCrossRefGoogle Scholar
  11. Mueller, B.E.A. (1992).“CCD-photometry of comets at large heliocentric distances” Asteroids, Comets, Meteors 1991: 425.Google Scholar
  12. Osip, D.J., Schleicher, D.G. and Millis, R.L. (1992). Comets - Groundbased observations of spacecraft mission candidates. Icarus, 98: 115.ADSCrossRefGoogle Scholar
  13. Rickman, H. and H¨ubner, W.F. (1990). Comet formation and evolution. Physics and chemistry of comets, ed. W.F. H¨ubner, Springer Verlag, Berlin: 245.Google Scholar
  14. Tancredi, G., Fernandez, J.A., Rickman, H., and Licandro, J. (2000). A catalog of observed nuclear magnitudes of Jupiter family comets. AandA Suppl., 146: 73.ADSGoogle Scholar

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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