Further progress on solar age calibration

TL;DR

This paper refines the solar age estimate by recalibrating a solar model seismologically, accounting for specific physical effects, resulting in a precise age determination of approximately 4.63 billion years.

Contribution

It introduces a new calibration method that removes hydrogen ionization and convective boundary effects from observed frequencies for more accurate solar age estimation.

Findings

Solar age estimated at 4.63 billion years

Improved calibration method enhances age accuracy

Reduction of physical effects in frequency analysis

Abstract

We recalibrate a standard solar model seismologically to estimate the main-sequence age of the Sun. Our procedure differs from what we have done in the past by removing from the observed frequencies the effect of hydrogen ionization and the superadiabatic convective boundary layer. Our preliminary result is $t_\odot=4.63 \pm 0.02$ Gy.