Corpus ID: 17966332

Gravitational Instabilities in Gaseous Protoplanetary Disks and Implications for Giant Planet Formation

  title={Gravitational Instabilities in Gaseous Protoplanetary Disks and Implications for Giant Planet Formation},
  author={R. Durisen and A. Boss and L. Mayer and Andy Nelson and T. Quinn and K. Rice},
  journal={arXiv: Astrophysics},
  • R. Durisen, A. Boss, +3 authors K. Rice
  • Published 2006
  • Physics
  • arXiv: Astrophysics
  • Protoplanetary gas disks are likely to experience gravitational instabilites (GI's) during some phase of their evolution. Density perturbations in an unstable disk grow on a dynamic time scale into spiral arms that produce efficient outward transfer of angular momentum and inward transfer of mass through gravitational torques. In a cool disk with rapid enough cooling, the spiral arms in an unstable disk form self-gravitating clumps. Whether gas giant protoplanets can form by such a disk… CONTINUE READING
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