Fig. B.4.

Bailey diagram of RRab and T2C stars in ω Cen. The symbols are the same as in Fig. B.3. Dashed lines represent the Oosterhoff 0 (Oo0, see Sect. 2.2), Oosterhoff I (OoI), and Oosterhoff II (OoII) loci of RRab stars. The Oo0 linear relation was derived by us in Sect. 2.2. OoI and OoII were adopted from Fabrizio et al. (2019). We rescaled the relations using the amplitude ratios provided by Braga et al. (2016).
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