Study of solar structure based on p-mode helioseismology

A principal goal of helioseismology is to test the physics, assumptions and procedures used in computing models of solar and stellar structure and their oscillation frequencies. Indeed, the connection between the physics and the assumptions on the one hand, and the observable frequencies on the other, may be regarded as the principal forward (and inverse) problem, with the model serving as a necessary intermediate step. Here I consider how the model and its frequencies react to changes in the physics and the assumptions. I also briefly discuss tests of numerical precision, and compare computed frequencies with the observations