Asteroseismology of blue stragglers in $\omega$ Centauri: the case of five double-mode radial SX Phoenicis pulsators

J. Daszyńska-Daszkiewicz, P. Walczak, P. Góra +1

We present the first extensive seismic modelling of SX Phe stars in the stellar system $\omega$ Cen. First, using the new values of reddening $E(B-V)$ and distance modulus $(m-M{)}_V$, an…