Giant planet formation: coupling the core's oligarchic growth and the gas accretion

¹ Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosque s/n (B1900FWA) La Plata, Argentina
² Instituto de Astrofísica de La Plata, CONICET-UNLP, Argentina

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Abstract

In the context of the core instability model and of the oligarchic growth of solid protoplanets, we present a set of full evolutionary calculations of in situ giant planet formation. The growth of the core and the planetesimal accretion rate were coupled in a self–consistent way to the envelope's evolution. Several simulations for the formation of a Jupiter–like object were performed taking into account various surface densities for the protoplanetary disc and different sizes for the accreted planetesimals.