Princeton University Star Formation/ISM Rendezvous (SFIR) - Speaker 2

Recent observations have revealed protoplanetary disks with lopsided structures. A formation theory of those structures suggests the presence of gas vortexes induced by the Rossby wave instability (RWI). When a disk has a rapid radial variation, gas vortexes are formed by the RWI. In order to understand how vortexes are formed, we perform linear stability analyses and numerical simulations using the Atehna++ code on a large parameter space. I will present the property and the evolution of the vortex. This study may help extract the physical property of the disks from observations of lopsided disks.