Global Non-ideal Magnetohydrodynamic Simulations of Protoplanetary Disks with Outer Truncation

It has recently been established that the evolution of protoplanetary disks is primarily driven by magnetized disk winds, requiring large-scale magnetic flux threading disks. The size such expected to shrink in time, as opposed conventional scenario viscous expansion. We present first global 2D non-ideal magnetohydrodynamic (MHD) simulations are truncated outer radius, aiming understand interaction with interstellar environment, well and flux. find system relaxes, poloidal field beyond truncation radius collapses towards midplane, leading rapid reconnection. This process removes a substantial amount from system, forms closed loops encircling quasi-steady-state. These can drive expansion corresponding mass loss through outflow analogous combination spreading external photoevaporation. gradually over time whose rates depend on level magnetization environments, which eventually governs long-term evolution.