Abstract
Planets are formed through accretion of planetesimals, while moons may accrete from a debris disk. Both are systems of a central object and a surrounding particle disk. We have been working on N-body simulations of dynamical evolution of such systems. For planet accretion, we directly showed “runaway growth” of planetesimals and suggested separation distance between protoplanets as a result of a coupling effect of dynamical friction and distant perturbation between protoplanets. For accretion of Earth’s Moon, we showed a single large moon can be produced from the impact-generated debris disk and established a direct relationship between the size of the accreted moon and initial configuration of the debris disk.
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Ida, S. (2001). Accretion of Planets and Moons. In: Ebisuzaki, T., Makino, J. (eds) New Horizons of Computational Science. Astrophysics and Space Science Library, vol 263. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0864-8_9
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DOI: https://doi.org/10.1007/978-94-010-0864-8_9
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