Browsing by Author "Parisi, M. G."

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    Planetesimal fragmentation and giant planet formation II. Dependencies with planetesimal relative velocities and compositions
    (2019) San Sebastian, I. L.; Guilera, O. M.; Parisi, M. G.
    Context. Most planet formation models that incorporate planetesimal fragmentation consider a catastrophic impact energy threshold for basalts at a constant velocity of 3 km s(-1) throughout the process of the formation of the planets. However, as planets grow, the relative velocities of the surrounding planetesimals increase from velocities of the order of meters per second to a few kilometers per second. In addition, beyond the ice line where giant planets are formed, planetesimals are expected to be composed roughly of 50% ices.