Tootfinder

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New migration patterns in high planet-star mass ratio systems in disks with low viscosity
Mariana S\'anchez, Sijme-Jan Paardekooper, Nienke van der Marel, Pablo Ben\'itez-Llambay, Gijs D. Mulders
https://arxiv.org/abs/2509.15719

New migration patterns in high planet-star mass ratio systems in disks with low viscosity
Migration of giant planets remains a complex topic. While significant progress has been made for high-viscosity disks, the migration of planets with large planet-star mass ratios in low-viscosity environments is still not fully understood. We study the migration of such planets in disks with $α= 10^{-4}$ and derive analytical prescriptions applicable across stellar masses, from Sun-like stars to M dwarfs. Using hydrodynamical simulations with FARGO3D, we explored planets with mass ratios $10^{…