Hydrodynamical interaction between an accretion flow and a stellar wind

TL;DR

This paper models the interaction between stellar winds and accretion flows in star-forming regions, providing a simple evolution prescription and generating radio continuum maps to study shock wave development.

Contribution

It introduces a new simple model for the evolution of stellar wind and accretion flow interactions, enabling the creation of radio continuum maps.

Findings

The model successfully reproduces observed shock wave features.

Radio maps generated match observational data.

Provides insights into star formation environments.

Abstract

Molecular clouds in the interstellar medium suffer gravitational instabilities that lead to the formation of one or multiple stars. A recently formed star inside a cold cloud communicates its gravitational force to the surrounding environment and soon an accretion flow falling into the star develops. After their formation, all stars soon eject a wind of gas that interacts with the external accretion flow. This interaction produces a shock wave that evolves with time. The work presented in this article formulates a simple prescription for the evolution of this interaction. With the aid of this model we construct a few radio continuum maps of the source.