Density Conversion between 1D and 3D Stellar Models with 1D MESA2HYDRO 3D

Abstract

We present 1D MESA2HYDRO 3D , an open-source, Python-based software tool that provides an accessible means of generating physically motivated initial conditions (ICs) for hydrodynamical simulations from 1D stellar structure models. We test 1D MESA2HYDRO 3D on five stellar models generated with the MESA stellar evolution code and verify its capacity as an IC generator with the Phantom smoothed particle hydrodynamics code. Consistency between the input density profiles, the 1D MESA2HYDRO 3D -rendered particle distributions, and the state of the distributions after evolution over 10 dynamical timescales is found for model stars ranging in structure and density from a radially extended supergiant to a white dwarf.