Hidrodinâmica circunstelar e suas implicações na formação de estruturas no meio interestelar

Abstract

The knowledge acquired about the universe and its mechanisms are fundamental in the study of astrophysics, they are the way to understand a wide range of astronomical phenomena. This work was developed in a bibliographic way and aims to define concepts about hydrodynamics that have direct application in the study of the interstellar medium and its structures; we present the description of a fluid and the concept of field to describe the flow properties as a function of space and time, with the purpose of providing input for the understanding of the hydrodynamic phenomena of the stellar medium; the Navier Stokes equation for viscous fluids was also superficially addressed in order to examine changes in the Euler equation, since viscosity is a manifestation of irreversible energy dissipation processes. Finally, we present some observational evidence of stellar winds, the rate of mass loss and its influence on the interstellar medium.