Models of giant planet formation with migration and disc evolution

Alibert, Y.; Mordasini, C.; Benz, W.; Winisdoerffer, C. (2005). Models of giant planet formation with migration and disc evolution. Astronomy and astrophysics, 434(1), pp. 343-353. EDP Sciences 10.1051/0004-6361:20042032

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We present a new model of giant planet formation that extends the core-accretion model of Pollack et al. (1996, Icarus, 124, 62) to include migration, disc evolution and gap formation. We show that taking these effects into account can lead to much more rapid formation of giant planets, making it compatible with the typical disc lifetimes inferred from observations of young circumstellar discs. This speed up is due to the fact that migration prevents the severe depletion of the feeding zone as observed in in situ calculations. Hence, the growing planet is never isolated and it can reach cross-over mass on a much shorter timescale. To illustrate the range of planets that can form in our model, we describe a set of simulations in which we have varied some of the initial parameters and compare the final masses and semi-major axes with those inferred from observed extra-solar planets.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences > Theoretical Astrophysics and Planetary Science (TAPS)
08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences

UniBE Contributor:

Alibert, Yann Daniel Pierre, Mordasini, Christoph, Benz, Willy

Subjects:

500 Science > 520 Astronomy
600 Technology > 620 Engineering

ISSN:

0004-6361

Publisher:

EDP Sciences

Language:

English

Submitter:

Christoph Mordasini

Date Deposited:

14 Mar 2023 15:00

Last Modified:

14 Mar 2023 23:27

Publisher DOI:

10.1051/0004-6361:20042032

BORIS DOI:

10.48350/178675

URI:

https://boris.unibe.ch/id/eprint/178675

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