Vortex-induced Rings and Gaps in Protoplanetary Disks
Date
2024
Authors
Ma, Xiaoyi
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Abstract
Observations of protoplanetary disks have revealed both crescents and rings in
dust continuum emission. These crescents are believed to result from dust-trapping
vortices generated by the Rossby Wave Instability (RWI), which induces density waves
similar to those produced by planets. We explore the properties of these density waves
and associated substructures by performing 2D hydrodynamic simulations both in
shearing boxes and global disks. Our findings confirm that long-lived vortices can
indeed create observable rings and gaps in inviscid discs consistent with ALMA dust
continuum observations. Additionally, we establish an empirical relationship between
the aspect ratio of gas vortices and the location of dust rings, revealing a linear
correlation between them.
Description
Keywords
Plantary Formation, Protoplanetary Disk