Instabilities Driven by a Pickup Ion Velocity Ring in the Heliosphere: Linear Theory and PIC Simulations

Kaijun Liu1, Kyungguk Min2, Stephen Peter Gary3 and Xueyi Wang1, (1)Auburn University, Physics Department, Auburn, AL, United States, (2)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (3)Space Science Institute, Boulder, CO, United States