Local Mixing near the Solar Core, Neutrino Fluxes and Helioseismology

TL;DR

This study investigates the effects of local mixing near the solar core on neutrino fluxes and helioseismic data, finding that while neutrino fluxes decrease, the models become inconsistent with helioseismic observations.

Contribution

It introduces models with local mixing near the solar core and evaluates their impact on neutrino fluxes and helioseismic compatibility.

Findings

Neutrino fluxes are reduced but not enough to match observations.

Models with local mixing are incompatible with helioseismic data.

Parametrized mixing models are unrealistic according to helioseismic constraints.

Abstract

We have computed solar models similar to those published in Richard, Vauclair, Charbonnel, Dziembowski (1996), in which we have added local mixing near the solar core in order to decrease the neutrino production. The results show that the neutrino fluxes are reduced as expected (although not enough to account for the observed values), but the obtained models are incompatible with the inversion of the helioseismic modes. We have specially tested the parametrized mixing proposed by Morel and Schatzman (1996). The resulting solar models are far from the seismic model and thus unrealistic.