TY  - JOUR
ID  - Chametla, R. O., Chrenko, O., Lyra, W. and Turner, N.J., On Wave Interference in Planet Migration: Dead Zone Torques Modified by Active Zone Forcing (2023), in: The Astrophysical Journal, 951:1(81)
T1  - On Wave Interference in Planet Migration: Dead Zone Torques Modified by Active Zone Forcing
A1  - Chametla, Raúl O.
A1  - Chrenko, Ondřej
A1  - Lyra, Wladimir
A1  - Turner, Neal J.
JA  - The Astrophysical Journal
Y1  - 2023
VL  - 951
IS  - 1
SP  - 81
AD  - AA(Charles University, Astronomical Institute), AB(Charles University, Astronomical Institute), AC(New Mexico State University, Department of Astronomy), AD(Jet Propulsion Laboratory)
SN  - 0004-637X
UR  - https://ui.adsabs.harvard.edu/abs/2023ApJ...951...81C
M2  - doi: doi:10.3847/1538-4357/acd1ee
KW  - Astrophysics - Earth and Planetary Astrophysics
KW  - Magnetohydrodynamics
KW  - Planetary migration
KW  - protoplanetary disks
N2  - We investigate planetary migration in the dead zone of a protoplanetary disk where there is a set of spiral waves propagating inward due to the turbulence in the active zone and the Rossby wave instability, which occurs at the transition between the dead and active zones. We perform global 3D unstratified magnetohydrodynamical simulations of a gaseous disk with the FARGO3D code, using weak gradients in the static resistivity profiles that trigger the formation of a vortex at the outer edge of the dead zone. We find that once the Rossby vortex develops, spiral waves in the dead zone emerge and interact with embedded, migrating planets by wave interference, which notably changes their migration. The inward migration becomes faster depending on the mass of the planet, due mostly to the constructive (destructive) interference between the outer (inner) spiral arm of the planet and the destruction of the dynamics of the horseshoe region by means of the set of background spiral waves propagating inward. The constructive wave interference produces a more negative Lindblad differential torque, which inevitably leads to an inward migration. Lastly, for massive planets embedded in the dead zone, we find that the spiral waves can create an asymmetric, wider, and deeper gap than in the case of α-disks and can prevent the formation of vortices at the outer edge of the gap. The latter could generate a faster or slower migration compared to the standard type-II migration.
M1  - ={10.3847/1538-4357/acd1ee
M1  -  eprint: arXiv:2306.16843}
ER  -