2001/10/22 by Roman R. Rafikov, Roman Rafikov · 183 citations
Physics and Astronomy · #Angular momentum #Astro and Planetary Science #Astrophysics #Astrophysics and Star Formation Studies #Classical mechanics #Dissipation #Mechanics #Nonlinear system #Physics #Planet #Protoplanetary disk #Shock wave #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1086/339399
published in The Astrophysical Journal 569(2), 997-1008 (IOP Publishing) · AASTeX, 26 pages, 4 figures, 1 table, submitted to ApJ
arxiv created 2001/10/22 · openalex publication_date 2002/04/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The propagation and evolution of planet-generated density waves in protoplanetary disks is considered. The evolution of waves, leading to shock formation and wake dissipation, is followed in the weakly nonlinear regime. The 2001 local approach of Goodman and Rafikov is extended to include the effects of surface density and temperature variations in the disk as well as the disk cylindrical geometry and nonuniform shear. Wave damping due to shocks is demonstrated to be a nonlocal process spanning a significant fraction of the disk. Torques induced by the planet could be significant drivers of disk evolution on timescales of ~10 6 -10 7 yr, even in the absence of strong background viscosity. A global prescription for angular momentum deposition is developed that could be incorporated into the study of gap formation in a gaseous disk around the planet.