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Relativistic effects in the solar EOS

A. Bonanno, A. L. Murabito, L. Paterno'

astro-pharXiv:astro-ph/0107381

Abstract

We study the sensitivity of the sound speed to relativistic corrections of the equation of state (EOS) in the standard solar model by means of a helioseismic forward analysis. We use the latest GOLF/SOHO data for = 0,1,2,3 modes to confirm that the inclusion of the relativistic corrections to the adiabatic exponent Γ1 computed from both OPAL and MHD EOS leads to a more reliable theoretical modelling of the innermost layers of the Sun.

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