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A Safety Net for Fast Migrators: Interactions between Gap‐opening and Sub–Gap‐opening Bodies in a Protoplanetary Disk
2005
Astrophysical Journal
Young planets interact with their parent gas disks through tidal torques. An imbalance between inner and outer torques causes bodies of mass 0.1 Earth masses to lose angular momentum and migrate inward rapidly relative to the disk; this is known as "Type I" migration. However, protoplanets that grow to gas giant mass, O(10^2) M_⊕, open a gap in the disk and are subsequently constrained to migrate more slowly, locked into the disk's viscous evolution in what is called "Type II" migration. In a
doi:10.1086/429913
fatcat:xgevjsnlzvhqhgumjvujbm2txi