Period-Luminosity Relations for Galactic Classical Cepheids in the Sloan Bands
Gieren, Wolfgang; Pietrzyński, Grzegorz; Graczyk, Dariusz; Górski, Marek; Wielgórski, Piotr; Karczmarek, Paulina; Zgirski, Bartłomiej; Hajdu, Gergely; Narloch, Weronika
Chile, Poland
Abstract
We present the first period-luminosity (PL) and period-Wesenheit (PW) relations in the Sloan-Pan-STARRS g P1 r P1 i P1 bands for classical fundamental-mode Cepheids in the Milky Way. We used a relatively modest number of 76 stars for the PL and 84-85 stars for the PW relations calibration. The data for the project were collected with the network of 40 cm telescopes of the Las Cumbres Observatory, and Gaia Data Release 3 parallaxes were used for the calculations. These gri-band PL and PW relations calibrations will be a useful tool for distance determinations in the era of large sky surveys using the Sloan photometric system, especially with the near-future start of the Large Synoptic Survey of Space and Time. * Based on data from the Las Cumbres Observatory.