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- W4378718310 abstract "Context. The effects of planetesimal fragmentation on planet formation has been studied by various models on single embryos therefore neglecting concurrent effects mostly in the outer disk. They show that planetesimal fragmentation can both hinder or aid planet formation due to the introduction of competing effects, namely speeding up accretion and depleting the feeding zone of forming planets. Aims. We investigate the influence of the collisional fragmentation of planetesimals on the planet formation process using a population synthesis approach. We aim to investigate its effects for a large set of initial conditions and also explore the consequences on the formation of multiple embryos in the same disk. Methods. We run global planet formation simulations including fragmentation, drift and an improved ice line description. To do this we use a fragmentation model in our code. The initial conditions for the simulations that are informed by observations are varied to generate synthetic exoplanet populations. Results. Our synthetic populations show that depending on the typical size of solids generated in collisions, fragmentation in tandem with the radial drift can either enhance or hinder planet formation. For larger fragments we see increased accretion throughout the populations especially beyond the ice line. However, the shorter drift timescale of smaller fragments, due to their stronger coupling to the gas, can hinder the formation process. Furthermore, beyond the ice line fragmentation promotes late growth when the damping by gas drag fades Conclusions. Fragmentation significantly affects the planet formation process in various ways for all types of planet and warrants further investigation." @default.
- W4378718310 created "2023-05-30" @default.
- W4378718310 creator A5006049715 @default.
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- W4378718310 date "2023-05-26" @default.
- W4378718310 modified "2023-09-27" @default.
- W4378718310 title "The influence of planetesimal fragmentation on planet formation" @default.
- W4378718310 doi "https://doi.org/10.48550/arxiv.2305.16952" @default.
- W4378718310 hasPublicationYear "2023" @default.
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