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Fig. 15.

image

Mass-frequency relation for program stars in NGC 6910. Blue dots are p modes, red dots are g modes, encircled blue dots stand for modes classified as “p or p/g” (Table 3), and the red circle is the mixed p/g mode in NGC 6910-25. Finally, two crosses are non-classified modes. The line is the relation given by Balona et al. (1997) fitted to p modes; it corresponds to the age of 8.4 Myr.

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