Astrophysics (index)about

core accretion model

(model for the formation of giant planets)

The core accretion model is a model of giant planet formation positing that a solid core is produced by accretion up to the order of 10 Earth masses, followed by the accretion of gas from a protoplanetary disk.

This is the most widely accepted model, the second model being the gravitational instability model, where instability in a protoplanetary disk allows parts of it to separate.

These models of planet formation fit into the nebular hypothesis.

(planet formation,accretion,nebular hypothesis,theory)

Referenced by:
giant planet
gravitational instability model
nebular hypothesis
planet formation