Solar Models with Revised Abundance

TL;DR

This paper develops advanced solar models incorporating updated low abundances, rotation, magnetic fields, and extra-mixing processes, resulting in better alignment with observed solar rotation and seismic data.

Contribution

It introduces solar models that integrate the effects of rotation, magnetic fields, and diffusion with updated abundances, improving agreement with observations.

Findings

Models reproduce the observed solar rotation profile.

Models match seismic constraints better than standard models.

Inclusion of rotation and magnetic fields enhances model accuracy.

Abstract

We present new solar models in which we use the latest low abundances and we further include the effects of rotation, magnetic fields and extra-mixing processes. We assume that the extra-element mixing can be treated as a diffusion process, with the diffusion coefficient depending mainly on the solar internal configuration of rotation and magnetic fields. We find that such models can well reproduce the observed solar rotation profile in the radiative region. Furthermore the proposed models can match the seismic constraints better than the standard solar models, also when these include the latest abundances, but neglect the effects of rotation and magnetic fields.