| Name: | Vignesh Vaikundaraman |
| Affiliation: | Max Planck Institute for Solar System Research |
| Conference ID: | ASI2025_386 |
| Title: | Dust growth in wind-driven protoplanetary disks |
| Authors: | Vignesh Vaikundaraman, Joanna Drążkowska |
| Authors Affiliation: | Vignesh Vaikundaraman, Joanna Drążkowska Max Planck Institute for Solar System Research, Justus-von-Liebig-Weg 3, Goettingen, 37077, Germany |
| Mode of Presentation: | Oral |
| Abstract Category: | Sun, Solar System, Exoplanets, and Astrobiology |
| Abstract: | Recent models show that disk winds efficiently transport angular momentum in the regions where non-ideal magnetohydrodynamic (MHD) effects suppress the Magnetorotational Instability (MRI). Moreover, these winds produce complex gas flows in the disk which are further amplified by non-ideal MHD effects like the Hall effect and its connected processes. Dust evolution and dynamics are connected to the underlying gas dynamics in the disk and it has recently been shown that complex gas flows can enhance the radial diffusion of dust depending on the flow structures. We examine the effect of the complex gas flows due to MHD winds on dust evolution including dust coagulation. We incorporate gas flow structure from a 2-dimensional global, non-ideal MHD simulation into a 2-dimensional Monte Carlo code for dust evolution to perform global simulations of dust evolution in the case of complex gas flows. We observe the formation of dust traps as a natural outcome of the interplay between the gas flows and dust evolution. We compare our results with the traditional viscous evolution models for disk evolution and the recent analytical models describing disk winds. We discuss the conditions for planetesimal formation and its applicability in the dust traps observed in our simulations. |
