Oligarchic growth and the giant planets

Details Oligarchic growth and the giant planets Oligarchic growth and the giant planets

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001dps....33.2305t&link_type=abstract

American Astronomical Society, DPS Meeting #33, #23.05; Bulletin of the American Astronomical Society, Vol. 33, p.1081

Astronomy and Astrophysics

Astronomy

Scientific paper

Runaway growth ends when the largest protoplanets dominate the dynamics of the planetesimal disk; the subsequent self-limiting accretion mode is referred to as ``oligarchic growth''. We use the oligarchic growth model to obtain global estimates of the planet formation rate throughout the protoplanetary disk. Comparison is made to numerical simulations; these suggest that planetesimal accretion stagnates well before protoplanets reach their idealized isolation mass. A further complication comes in the form of gas disk tidal torques, which should cause rapid orbital decay of bodies with masses in the range 10-1 - 102 Earth masses. We investigate the effect of this mechanism on protoplanet growth in the region of the giant planets.

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