New Global 3D MHD Simulations of Black Hole Disk Accretion and Outflows

TL;DR

This paper presents advanced 3D magnetohydrodynamic simulations of black hole accretion disks, exploring the roles of radiation and non-ideal MHD effects in driving outflows and increasing accretion rates.

Contribution

It introduces new global 3D simulations incorporating radiation and non-ideal MHD to better understand outflows and accretion in black hole systems.

Findings

Magnetized outflows can enhance angular momentum transport.

Radiation and non-ideal MHD effects influence accretion dynamics.

Simulations suggest higher mass accretion rates than previous models.

Abstract

It is widely accepted that quasars and other active galactic nuclei (AGN) are powered by accretion of matter onto a central supermassive black hole. While numerical simulations have demonstrated the importance of magnetic fields in generating the turbulence believed necessary for accretion, so far they have not produced the high mass accretion rates required to explain the most powerful sources. We describe new global 3D simulations we are developing to assess the importance of radiation and non-ideal MHD in generating magnetized outflows that can enhance the overall rates of angular momentum transport and mass accretion.