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Keyword: streaming instability ×Clear all

2 claims from 1 paper

1. Physics and Astronomy › Astro and Planetary Science

   From planetesimals to planets with N-body simulations in the giant-planet formation region

   Lorek and Lambrechts · arXiv (Cornell University) · 2026

   N-body simulations of planetesimals between 10 and 50 AU, with GPU acceleration and a new pebble accretion module, follow how giant-planet cores form and how the resulting systems evolve.

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   1. UncheckedIn these N-body simulations, the largest planetesimals seed giant-planet cores via pebble accretion, producing several giant planets.“We find that the top of the planetesimal mass distribution provides the seeds for core formation through pebble accretion, leading to the formation of multiple giant planets.”
   2. UncheckedIn these N-body simulations, giant planet formation depends only weakly on where planetesimals start and on their total mass, in the 10 to 50 AU region.“Our simulations show that giant planet formation depends only weakly on the initial locations where planetesimals form, because of rapid dynamical scattering, and on their total mass budget, due to filtering of the pebble flux between embryos.”