IALP 13078
INSTITUTO DE ASTROFISICA LA PLATA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Simultaneous formation of solar system giant planets
Autor/es:
GUILERA, O. M.; FORTIER, A.; BRUNINI, A.; BENVENUTO, O. G.
Lugar:
Nantes
Reunión:
Congreso; EPSC-DPS Joint Meeting 2011; 2011
Resumen:
In the framework of the "Nice model" [1], we
compute the formation of
the solar system giant planets by concurrent accretion
of solids and
gas, and study the dependence of this process on the
surface profile of
the protoplanetary disk and the size distribution of
the accreted
planetesimals. We focus on the conditions that lead to
the simultaneous
formation of two massive cores, corresponding to
Jupiter and Saturn,
which should be able to reach the cross-over mass
(where the mass of the
envelope equals the mass of the core, and gaseous
runway starts), while
two other cores should be able to grow up to Uranus
and Neptune's
current masses. We find that the simultaneous
formation of the giant
planets is favored by flat surface density profiles
and by the accretion
of relatively small
planetesimals.
