On the choice of parameters in solar-structure inversion

The observed solar p-mode frequencies provide a powerful diagnostic of the internal structure of the Sun and permit us to test in considerable detail the physics used in the theory of stellar structure. Among the most commonl y used techniques for inverting such helioseismic data are two implementati ons of the optimally localized averages (OLA) method, namely the subtractiv e optimally localized averages (SOLA) and multiplicative optimally localize d averages (MOLA). Both are controlled by a number of parameters, the prope r choice of which is very important for a reliable inference of the solar i nternal structure. Here we make a detailed analysis of the influence of eac h parameter on the solution and indicate how to arrive at an optimal set of parameters for a given data set.