On the separation between RR Lyrae and Type II Cepheids and their importance for distance determination: the case of $\omega$ Cen

V. F. Braga, G. Bono, G. Fiorentino +11

The separation between RR Lyrae (RRLs) and Type II Cepheid (T2Cs) variables based on their period is debated. Both types of variable stars are distance indicators and we aim to pro…