Helioseismic determination of opacity corrections

Details Helioseismic determination of opacity corrections Helioseismic determination of opacity corrections

1997-03-26

arxiv.org/abs/astro-ph/9703170v2

Astronomy and Astrophysics

Astrophysics

Latex, 2 Pages, 2 Figures, Figure size reduced to fit into 2 pages, To appear in Proc. of IAU Symp.#181: "Sounding solar and s

Scientific paper

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.

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