Hydrodynamical wind on vertically self-gravitating ADAFs in the presence of toroidal magnetic field

TL;DR

This paper investigates how hydrodynamical winds influence the structure and temperature of vertically self-gravitating, magnetized ADAFs using self-similar solutions, revealing that winds significantly reduce disc thickness and radial velocity, and increase temperature.

Contribution

It introduces a model for self-gravitating, magnetized ADAFs with winds, highlighting the combined effects of wind and self-gravity on disc structure and temperature.

Findings

Winds significantly reduce disc thickness and radial velocity.

Winds and advection similarly affect disc structure.

Including wind and self-gravity increases the temperature of optically thin ADAFs.

Abstract

We present the effect of a hydrodynamical wind on the structure and the surface temperature of a vertically self-gravitating magnetized ADAFs using self-similar solutions. Also a model for an axisymmetric, steady-state, vertically self-gravitating hot accretion flow threaded by a toroidal magnetic field has been formulated. The model is based on $\alpha-$prescription for turbulence viscosity. It is found that the thickness and radial velocity of the disc are reduced significantly as wind gets stronger. In particular, the solutions indicated that the wind and advection have the same effects on the structure of the disc. We also find that in the optically thin ADAF becomes hotter by including the wind parameter and the self-gravity parameter.