A327 Zaffarano
Ames, IA 50010, USA
+1 (515) 294-2219 

jbsimon.astro 'at' gmail.com 

Jake Simon

 Assistant Professor

 Iowa State University

Planetesimal Formation in a Pressure Bump 


In this simulation, which was done as part of Carrera et al. 2020, particles drift toward the star and encounter a pressure bump (centered on x = 0, but due to the background pressure gradient, the point of minimum drift is around x = -1.2H).  The particles slow down as they enter the minimum drift point, which causes their local density to increase, pushing them into the streaming unstable regime.  Planetesimal formation follows soon thereafter.