TL;DR
This paper reviews current solar models, addressing discrepancies caused by recent low CNO abundance measurements, and explores how modifications in opacities impact helioseismic data and neutrino flux predictions.
Contribution
It provides an updated analysis of solar models incorporating recent abundance data and examines the effects of opacity changes on model-observation agreement.
Findings
Low CNO abundances challenge existing models
Opacity adjustments improve helioseismic agreement
Neutrino flux predictions are affected by abundance and opacity changes
Abstract
We describe the current status of solar modelling and focus on the problems originated with the introduction of solar abundance determinations with low CNO abundance values. We use models computed with solar abundance compilations obtained during the last decade, including the newest published abundances by Asplund and collaborators. Results presented here make focus both on helioseismic properties and the models as well as in the neutrino fluxes predictions. We also discuss changes in radiative opacities to restore agreement between helioseismology, solar models, and solar abundances and show the effect of such modifications on solar neutrino fluxes.
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