In Situ Formation and Dynamical Evolution of Hot Jupiter Systems

  title={In Situ Formation and Dynamical Evolution of Hot Jupiter Systems},
  author={K. Batygin and P. Bodenheimer and G. Laughlin},
  journal={arXiv: Earth and Planetary Astrophysics},
Hot Jupiters, giant extrasolar planets with orbital periods shorter than ~10 days, have long been thought to form at large radial distances, only to subsequently experience long-range inward migration. Here, we propose that in contrast with this picture, a substantial fraction of the hot Jupiter population formed in situ via the core accretion process. We show that under conditions appropriate to the inner regions of protoplanetary disks, rapid gas accretion can be initiated by Super-Earth type… Expand
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