Solar Models with Helioseismic Constraints and the Solar Neutrino Problem

Details Solar Models with Helioseismic Constraints and the Solar Neutrino Problem Solar Models with Helioseismic Constraints and the Solar Neutrino Problem

2001-05-25

arxiv.org/abs/astro-ph/0105445v1

Publ.Astron.Soc.Jap. 53 (2001) 565-575

Astronomy and Astrophysics

Astrophysics

12 pages, 17 figures, uses pasj00.cls. Accepted for publication in PASJ

Scientific paper

Imposing a constraint of the sound-speed profile determined from helioseismology and updating the microphysics, we have revised our seismic solar model, constructed with the assumption of a homogeneous metal abundance distribution, and have shown that the theoretically expected neutrino fluxes are still significantly more than the observations. With the same sound-speed profile constraint, we also constructed solar models with low metal abundance in the core, and evaluated the neutrino fluxes of these models to see if nonstandard solar models with a low metal core can solve the solar neutrino problem. Some of these models are in agreement with the Homestake data, the Super-Kamiokande data, and the sound-speed profile simultaneously, but none of these satisfy both the neutrino flux data, including GALLEX and SAGE, and the helioseismically determined density profile.

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