ASTEC -- the Aarhus STellar Evolution Code

TL;DR

ASTEC is a flexible stellar evolution code developed since 1974, now including adiabatic oscillation computations, with ongoing improvements in microphysics and stellar processes.

Contribution

It introduces integrated adiabatic oscillation calculations within a long-standing stellar evolution code, enhancing modeling capabilities.

Findings

Successfully computes solar models with tested microphysics

Incorporates adiabatic oscillation calculations

Requires further development in nuclear reactions and mixing processes

Abstract

The Aarhus code is the result of a long development, starting in 1974, and still ongoing. A novel feature is the integration of the computation of adiabatic oscillations for specified models as part of the code. It offers substantial flexibility in terms of microphysics and has been carefully tested for the computation of solar models. However, considerable development is still required in the treatment of nuclear reactions, diffusion and convective mixing.