Helioseismic tests of diffusion theory

TL;DR

This paper uses helioseismic data to evaluate the accuracy of diffusion coefficients in solar models, confirming the diffusion efficiency within 10% accuracy and validating theoretical predictions.

Contribution

It provides a quantitative assessment of diffusion coefficients in solar models using helioseismic observations, confirming their accuracy within 10%.

Findings

Helioseismology confirms diffusion efficiency in solar models within 10%.

The study validates the diffusion coefficients used in standard solar models.

Uncertainties in solar modeling are considered in the analysis.

Abstract

We present a quantitative estimate of the accuracy of the calculated diffusion coefficients, by comparing predictions of solar models with observational data provided by helioseismology. By taking into account the major uncertainties in building solar models we conclude that helioseismology confirms the diffusion efficiency adopted in SSM calculations, to the 10% level.