Global General Relativistic MHD Simulation of a Tilted Black-Hole Accretion Disk

Understand

This paper presents a continuation of our efforts to numerically study accretion disks that are misaligned (tilted) with respect to the rotation axis of a Kerr black hole.

• Here we present results of a global numerical simulation which fully incorporates the effects of the black hole spacetime as well as magnetorotational turbulence that is the primary source of angular momentum transport in the flow.
• This simulation shows dramatic differences from comparable simulations of untilted disks.
• Accretion onto the hole occurs predominantly through two opposing plunging streams that start from high latitudes with respect to both the black-hole and disk midplanes.