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Fig. A.1.

image

Period ratio vs. fundamental pulsation period (errors on depicted quantities are smaller than the point size) for a discovered RR Lyrae star (gray point) compared to the pulsation models (blue and red colors, Smolec & Moskalik 2008) calculated for a fixed mass (0.7 M), metallicity (−2.0 and −2.5 dex), and a grid of stellar parameters (L and Teff) typical for RR Lyrae stars.

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