Computer Science
Scientific paper
Nov 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.500...39d&link_type=abstract
In: Proceedings of Asteroids, Comets, Meteors - ACM 2002. International Conference, 29 July - 2 August 2002, Berlin, Germany. Ed
Computer Science
Kuiper Belt Objects: Thermal Evolution, Comets: Thermal Evolution
Scientific paper
The outer part of the solar system contains primitive dark volatile rich objects showing strong relation to comets. In the last years we have developed thermal models of Centaurs and bodies moving on Kuiper belt orbits with the aim to follow their evolution and differentiation and to better understand the relations between them and the comets. The main result is that the Kuiper Belt Objects can be strongly volatile depleted: several hundred meters below the surface, the most volatile ices are completely absent. From the models of Pholus and Chiron we have seen that permanent activity is difficult to sustain, so the present inactive appearance of Pholus is not surprising while the activity of Chiron in terms of volatile or supervolatile emission can be explained only if some CO, trapped or/and icy, is present not far from the surface. To understand the complex scenario of the outer solar system, more investigations on the thermal evolution of Centaurs, KBOs and comets are needed.
Capria Maria Teresa
Coradini Angioletta
de Sanctis Maria Cristina
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