Fig. 5.

Petersen diagram of double-mode DCEPs pulsating in F and FO modes, with the period ratios of HD344787 measured by Turner et al. (2010) (red diamond) and in this work (black square). Data for other Galactic DCEPs are from Udalski et al. (2018) and Jurcsik et al. (2018). Data for DCEPs in the Large and Small Magellanic Clouds come from Soszyński et al. (2025).
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