Speaker
Description
We compared empirical RR Lyrae period-luminosity-metallicity (PLZ) and period-Wesenheit-metallicity (PWZ) relations that were calibrated using various RR Lyrae origins to evaluate the accuracy and validity of distance estimations. Our analysis employs RR Lyrae samples from various host systems, including the Large Magellanic Cloud, Draco dwarf galaxy, and globular cluster $\omega$ Centauri. We evaluated the performances and consistencies of the empirical relations by comparing the relation-inferred distances with distances that were independently measured. Furthermore, we conducted statistical tests to compare the pulsating behaviors and explore the evolutionary effects of each dataset, aiming to explain the RR Lyrae differences in diverse host environments. The comparative analysis may provide a standard to reduce the selection bias in calibrating the PLZ relations and the capabilities of existing gri-band empirical relations
| Participate the oral/poster presentation award competition | Yes |
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