Hertzsprung–Russell diagram (HRD) illustrating a 2D slice of the grid search procedure for the star HD 48497, using the best-fit mode combination (see Table 2). Also shown are evolutionary tracks with initial metallicity and overshooting parameter that provided the best fit of the models to the observed frequencies. The underlying heat map indicates the interpolated χ2 values on a logarithmic scale. Corresponding isochrones are overlayed in 10 Myr increments. The location of HD 48497 is indicated by the black dot, which is surrounded by the corresponding 1σ, 2σ, and 3σ error boxes.
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