Early Inhomogeneities of Composition and the Solar Neutrino Problem

It is shown that if the Sun possesses a small burnt-out (Xc = o) core covering some 2–3 per cent of its mass, then the resulting neutrino flux will be at least a factor of 10 smaller than the corresponding values predicted by conventional solar models. It is suggested that such an exhausted core may...

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Bibliographic Details
Published in:Monthly notices of the Royal Astronomical Society 1973-08, Vol.163 (3), p.331-335
Main Author: Prentice, A. J. R.
Format: Article
Language:English
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Summary:It is shown that if the Sun possesses a small burnt-out (Xc = o) core covering some 2–3 per cent of its mass, then the resulting neutrino flux will be at least a factor of 10 smaller than the corresponding values predicted by conventional solar models. It is suggested that such an exhausted core may develop after only ∼ 4.5.109 yr if the radiative evolution of the Sun commences from an initially non-uniform chemical composition which is much richer in fractional helium abundance at the centre than the outside. Such an initial distribution may arise naturally, as a result of buoyant differentiation, if there had originally existed small-scale inhomogeneities in the composition of the interstellar material out of which the Sun was formed.
ISSN:0035-8711
1365-2966
DOI:10.1093/mnras/163.3.331