Collisionless Accretion of Finite-Angular-Momentum Plasma onto a Spinning Black Hole
This study performed fully kinetic simulations of collisionless plasma falling onto a spinning black hole using a finite-angular-momentum setup. Results show that the accretion flow behaves like magnetically arrested disks, triggering accretion via the MRI and exhibiting flux saturation and eruptions similar to GRMHD models. Crucially, pair production is shown to be necessary to supply plasma to the jet funnel for launching a Blandford-Znajek jet.