# Parsec-scale obscuring accretion disk with large scale magnetic field in AGN

## TL;DR

This paper develops an analytical model and performs simulations of magnetized, obscuring accretion disks in AGN, showing that magnetic support can sustain the torus and match observed obscuration properties.

## Contribution

It introduces an analytical model for magnetically supported AGN tori and validates it through 3D MHD simulations, linking magnetic fields to obscuration.

## Key findings

- Analytical model supports long-lived, obscuring torus in AGN.
- Simulations show magnetic support enhances torus stability.
- Model results align with observational constraints.

## Abstract

Magnetic field dragged from the galactic disk along with inflowing gas can provide vertical support to the geometrically and optically thick pc-scale torus in AGN. Using the Soloviev solution initially developed for Tokamaks we derive an analytical model for a rotating torus supported and confined by magnetic field. We further perform three-dimensional magneto-hydrodynamics simulations of X-ray irradiated pc-scale magnetized tori. We follow the time evolution and compare models which adopt initial conditions derived from our analytic model with simulations in which the initial magnetic flux is entirely contained within the gas torus. Numerical simulations demonstrate that the initial conditions based on the analytic solution produce a longer-lived torus and one which produces obscuration which is generally consistent with observed constraints.