Circum-planetary discs as bottlenecks for gas accretion onto giant planets

  title={Circum-planetary discs as bottlenecks for gas accretion onto giant planets},
  author={Guillaume Rivier and Aur{\'e}lien Crida and Alessandro Morbidelli and Yann Brouet},
  journal={arXiv: Earth and Planetary Astrophysics},
With hundreds of exoplanets detected, it is necessary to revisit giant planets accretion models to explain their mass distribution. In particular, formation of sub-jovian planets remains unclear, given the short timescale for the runaway accretion of massive atmospheres. However, gas needs to pass through a circum-planetary disc. If the latter has a low viscosity (as expected if planets form in "dead zones"), it might act as a bottleneck for gas accretion. We investigate what the minimum… Expand

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