Helioseismic determination of opacity corrections
Abstract
We investigate the effect of localized opacity modifications on the sound-speed profile of solar models. The sound-speed difference between the Sun and a solar model is used to deduce the opacity correction that would be required to bring the model into agreement with the Sun. We test this procedure on artificial data for a pair of solar models and apply it to the solar sound speed as inferred from inversion of LOWL observed frequencies. We show that a solar model constructed with the appropriately modified opacity has a sound-speed profile very similar to that of the Sun.
Cite
@article{arxiv.astro-ph/9703170,
title = {Helioseismic determination of opacity corrections},
author = {S. C. Tripathy and Sarbani Basu and J. Christensen-Dalsgaard},
journal= {arXiv preprint arXiv:astro-ph/9703170},
year = {2008}
}
Comments
Latex, 2 Pages, 2 Figures, Figure size reduced to fit into 2 pages, To appear in Proc. of IAU Symp.#181: "Sounding solar and stellar interiors", eds. F.X. Schmider & J. Provost