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The Sun and the Newton Constant

B. Ricci·F. L. Villante
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Abstract

Several properties of the solar interior are determined with a very high accuracy, which in some cases is comparable to that achieved in the determination of the Newton constant $G_N$. We find that the present uncertainty $ΔG_N/G_N=\pm 1.5\cdot 10^{-3}$ has significant effects on the profile of density and pressure, however it has negligible influence on the solar properties which can be measured by means of helioseismology and $^8{\rm B}$ neutrinos. Our result do not support recent claims that observational solar data can be used to determine the value of $G_N$ with an accuracy of few part in $10^{-4}$. Present data cannot constrain $G_N$ to much better than $10^{-2}$.

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B. Ricci, F. L. Villante. 2002-04-29. The Sun and the Newton Constant. https://doi.org/10.1016/s0370-2693(02)02866-6

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