# Effect of plasma composition on magnetized outflows

## TL;DR

This study investigates how plasma composition influences magnetized outflows in pseudo-Newtonian gravity, revealing that flow variables and terminal speeds depend on composition, with winds in strong gravity being more accelerated.

## Contribution

It introduces a variable adiabatic index equation of state in magnetized wind models, analyzing the impact of plasma composition and gravity on flow solutions and terminal velocities.

## Key findings

- Flow solutions pass through critical points (slow, Alfvén, fast).
- Wind acceleration is greater in strong gravity for the same parameters.
- Terminal speed depends on plasma composition.

## Abstract

In this paper, we study magnetized winds described by variable adiabatic index equation of state in Paczy\'{n}ski \& Wiita pseudo-Newtonian potential. We identify the flow solutions with the parameter space of the flow. We also confirm that the physical wind solution is the one which passes through the slow, Alfv\'en and fast critical points. We study the dependence of the wind solution on the Bernoulli parameter $E$ and the total angular momentum $L$. The adiabatic index, which is a function of temperature and composition, was found to be variable in all the outflow solutions. For the same values of the Bernoulli parameter and the total angular momentum, a wind in strong gravity is more accelerated, compared to a wind in Newtonian gravity. We show that flow variables like the radial and azimuthal velocity components, temperature all depend on the composition of the flow. Unlike the outflow solutions in hydrodynamic regime, the terminal speed of a magnetically driven wind also depends on the composition parameter.