Vertically Self-Gravitating ADAFs in the Presence of Toroidal Magnetic Field

TL;DR

This paper investigates how vertical self-gravity and toroidal magnetic fields influence the structure of advection-dominated accretion discs, revealing that self-gravity reduces disc thickness while magnetic fields increase it.

Contribution

It provides self-similar solutions showing the combined effects of self-gravity and magnetic fields on disc structure, which was not extensively studied before.

Findings

Self-gravity reduces disc thickness.

Magnetic fields increase disc thickness.

Self-similar solutions describe the dynamical structure.

Abstract

Force due to the self-gravity of the disc in the vertical direction is considered to study its possible effects on the structure of a magnetized advection-dominated accretion disc. We present steady-sate self similar solutions for the dynamical structure of such a type of the accretion flows. Our solutions imply reduced thickness of the disc because of the self-gravity. It also imply that the thickness of the disc will increase by adding the magnetic field strength.