Physics
Scientific paper
Jun 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.244..542d&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 244, June 1, 1990, p. 542-550.
Physics
82
Helioseismology, Particle Flux Density, Solar Interior, Solar Neutrinos, Stellar Models, Integral Equations, Opacity, Spherical Harmonics, Stellar Cores
Scientific paper
The pressure and density in the sun's interior is determined using observed frequencies of the solar p-modes for spherical harmonic degrees less than 100. A nonasymptotic method, enabling accurate probing of the energy-producing core, was developed. It is found that most of the differences between standard solar models and the model from helioseismology can be explained if the opacity in the sun's interior is higher than assumed. There is an anomaly in the innermost part of the interior which may be interpreted as evidence that the sun has a small convective core. A search for the minimum value of the neutrino flux is conducted, taking the pressure and density distributions from helioseismology and considering a class of plausible profiles for the hydrogen content. It is found that this minimum value exceeds 10 SNU. The results show that the solar p-mode data exacerbate the neutrino flux problem, and suggest that the solution lies in the domain of particle physics.
Dziembowski Wojciech A.
Pamyatnykh Alexey A.
Sienkiewicz Ryszard
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