DPS Pasadena Meeting 2000, 23-27 October 2000
Session 8. Asteroid Posters I - Physical Studies
Displayed, 1:00pm, Monday - 1:00pm, Friday, Highlighted Tuesday and Thursday, 3:30-6:30pm, C101-C105, C211

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[8.12] The Role of Big Events in the Overall Collisional Evolution of Asteroids

A. La Spina, A. Dell'Oro, P. Paolicchi (University of Pisa, Italy)

A new numerical model of asteroid collisional evolution and a few preliminary results are presented. The algorithm allows to put into evidence the role of rare major collisional events, those whose probability of occurrence throughout the whole history of the Solar System is about -or less than- unity. It is discussed how these events affect the following collisional evolution and how their long time effects are observable in the mass distribution and in other properties. The method allows estimates of how accurately we are able to reconstruct the initial properties of the Belt as well as to ascertain the occurrence of big events in a recent past (in astronomical sense, i.e. compared to the age of the Solar System).

This work as been funded by MURST-Cofin98, through the Pisa group, leaded by P. Paolicchi.

The author(s) of this abstract have provided an email address for comments about the abstract: laspina@dm.unipi.it

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