The Sun and the Newton Constant

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 $\Delta G_N/G_N=\pm 1.5\cdot 10^{-3}$ 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 ${}^8\mathrm{B}$ 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 $10^{-2}$.

11 pages, RevTeX file, 4 ps figures included

References in corpus (9)

• Measurement of the rate of nu_e + d --> p + p + e^- interactions produced by 8B solar neutrinos at the Sudbury Neutrino Observatory
• Solar 8B and hep Neutrino Measurements from 1258 Days of Super-Kamiokande Data
• Solar Models: current epoch and time dependences, neutrinos, and helioseismological properties
• Solar Fusion Cross Sections
• Measurement of Newton's Constant Using a Torsion Balance with Angular Acceleration Feedback
• How much do helioseismological inferences depend upon the assumed reference model?
• Helioseismology and standard solar models
• Solar neutrino interactions: Using charged currents at SNO to tell neutral currents at Super-Kamiokande
• What have we learnt about the Sun from the measurement of the ${}^8$B neutrino flux?

Cited by in corpus (6)

• Varying constants, Gravitation and Cosmology
• The chemical composition of the Sun from helioseismic and solar neutrino data
• The minimally extended Varying Speed of Light (meVSL)
• Linear Solar Models
• Helioseismic and Neutrino Data Driven Reconstruction of Solar Properties
• The Uncertainty in Newton's Constant and Precision Predictions of the Primordial Helium Abundance