4–6 Nov 2026
HUN-REN Wigner Research Centre for Physics
Europe/Budapest timezone

Giant Planet Formation and Migration in Protoplanetary Disks Evolving under Viscous Accretion and Magnetically Driven Winds

6 Nov 2026, 10:15
15m
HUN-REN Wigner Research Centre for Physics

HUN-REN Wigner Research Centre for Physics

1121 Budapest, Konkoly-Thege Miklós út 29-33.

Speaker

István Gergely Hegedüs (ELTE, CSFK)

Description

The formation and orbital evolution of giant planets are strongly influenced by the physical properties and dynamical evolution of their protoplanetary disks. In this work, we investigate giant planet formation and migration in protoplanetary disks evolving under the combined effects of viscous accretion and magnetically driven disk winds. We adopt an analytical disk model to describe the time evolution of the gas surface density and temperature, coupled with prescriptions for planetary gas accretion, gap opening, and migration driven by planet–disk gravitational interactions. We employ the Kanagawa migration model to account for the reduction of migration torques associated with planetary gap opening, providing a continuous description of migration from low-mass planets to gap-opening giant planets. We examine how disk viscosity, magnetically driven winds, and the evolving gas distribution influence planetary growth and orbital evolution. Our aim is to understand how the relative contributions of viscous accretion and magnetically driven disk winds to disk evolution affect the growth, migration, and final orbital distribution of giant planets.

Authors

István Gergely Hegedüs (ELTE, CSFK) Dr Zsolt Sándor (Eötvös Lorand University Department of Astronomy)

Co-authors

Anna Császár (ELTE, HUN-REN CSFK CSI) Zsolt Regaly (MTA CSFK CSI)

Presentation materials

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