protoplanetaarisia
Protoplanetaarisia is a coined term referring to a proposed, speculative stage in the formation of planetary systems. In this concept, the early protoplanetary disk hosts a population of growing planetary embryos whose mutual gravity and interaction with the gaseous disk organize into a distinctive dynamical regime characterized by rapid accretion, migration, and the formation of resonant orbital configurations.
During protoplanetaarisia, solid material in the disk coagulates from dust to kilometer-sized planetesimals and then to
Observationally, protoplanetaarisia is not directly observed; it remains a theoretical construct. Researchers study it through numerical
The term is a neologism that appears in some theoretical discussions and, occasionally, in science fiction.