# Parker's Stellar Wind Model for Polytropic Gas Flows

## TL;DR

This paper extends Parker's stellar wind model to polytropic gases, providing a theoretical framework and demonstrating that such conditions lead to faster, more tenuous stellar winds which help stars shed angular momentum more efficiently.

## Contribution

The paper introduces a new extension of Parker's stellar wind model for polytropic gases, including a compatible theoretical formulation and detailed analysis.

## Key findings

- Polytropic conditions produce faster, more tenuous stellar winds.
- Extended model offers insights into stellar angular momentum loss.
- Theoretical and numerical analysis supports the model's validity.

## Abstract

Parker's hydrodynamic stellar wind model is extended to polytropic gas flows. A compatible theoretical formulation is given and detailed numerical and systematic asymptotic theoretical considerations are presented. The polytropic conditions are shown to lead to tenuous and faster wind flows and hence enable the stars to lose their angular momentum more quickly.