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Fig. E.1.

image

Derreddened diagrams used to estimate stellar parameters. Low-metallicity PARSEC isochrones (blue lines) were corrected for the distance (4500 pc), while stellar magnitudes and colors were derreddened using the individual extinctions calculated in Sect. 7.2. Stars whose parameters were estimated from the given diagram are marked in red, and the remaining stars are shown in green.

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