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Did Saturn's rings form during the Late Heavy Bombardment ?
Sebastien Charnoz, Alessandro Morbidelli, Luke H. Dones +1
The origin of Saturn\' s massive ring system is still unknown. Two popular scenarios - the tidal splitting of passing comets and the collisional destruction of a satellite - rely o…
On a Scattered-Disk Origin for the 2003 El61 Collisional Family - an Example of the Importance of Collisions on the Dynamics of Small Bodies
Harold F. Levison, Morbidelli Alessandro, David Vokrouhlicky +1
The recent discovery of the 2003EL61 collisional family in the Kuiper belt (Brown et al., 2007) is surprising because the formation of such a family is a highly improbable event in…
Accretion and destruction of planetesimals in turbulent disks
Shigeru Ida, Tristan Guillot, Alessandro Morbidelli
We study the conditions for collisions between planetesimals to be accretional or disruptive in turbulent disks, through analytical arguments based on fluid dynamical simulations a…