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Helioseismic constraints to the central solar temperature and neutrino fluxes

B. Ricci, V. Berezinsky, S. Degl'Innocenti, W. A. Dziembowski, G. Fiorentini

astro-pharXiv:astro-ph/9705164

Abstract

The central solar temperature T and its uncertainties are calculated in helioseismologically-constrained solar models. From the best fit to the convective radius, density at the convective radius and seismically determined helium abundance the central temperature is found to be T=1.58x107 K, in excellent agreement with Standard Solar Models. Conservatively, we estimate that the accuracy of this determination is Delta T/T=1.4 %, better than that in SSM. Neutrino fluxes are calculated. The lower limit to the boron neutrino flux, obtained with maximum reduction factors from all sources of uncertainties, is 2 sigma higher than the flux measured recently by SuperKamiokande.

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