In situ accretion of gaseous envelopes on to planetary cores embedded in evolving protoplanetary discs

Gavin AL Coleman, John Papaloizou & Richard P Nelson
The core accretion hypothesis posits that planets with significant gaseous envelopes accreted them from their protoplanetary discs after the formation of rocky/icy cores. Observations indicate that such exoplanets exist at a broad range of orbital radii, but it is not known whether they accreted their envelopes in situ, or originated elsewhere and migrated to their current locations. We consider the evolution of solid cores embedded in evolving viscous discs that undergo gaseous envelope accretion in...
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