The influence of chemical composition on the properties of Cepheid stars
The influence of chemical composition on the properties of Cepheid stars
Context. The Cepheid period-luminosity (PL) relation is unquestionably one of the most powerful tools at our disposal for determining the extragalactic distance scale. While significant progress has been made in the past few years towards its understanding and characterization both on the observational and theoretical sides, the debate on the …