ASP 2062 Introduction to Astrophysics Planet formation III — Daniel Price
نویسنده
چکیده
1. The two main models for planet formation in discs are ‘core accretion’ and ‘gravitational instability’ 2. Gravitational instability requires massive discs that satisfy the Toomre criterion and a sufficiently fast cooling rate 3. Core accretion proceeds in stages from dust to planetesimals, to terrestrial planets and eventually gas giants. Several ‘growth barriers’ must be overcome. 4. Both models predict a phase where planets interact strongly with the disc
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