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We present the first gri-band period-luminosity (PL) and period-Wesenheit(PW) relations for the fundamental mode anomalous Cepheids. These PL and PWrelations were derived from a combined sample of five anomalous Cepheids inglobular cluster M92 and the Large Magellanic Cloud, both of which havedistance accurate to ~1% available from literature. Our g-band PL relation issimilar to the B-band PL relation as reported in previous study. We applied ourPL and PW relations to anomalous Cepheids discovered in dwarf galaxy Crater II,and found a larger but consistent distance modulus than the recent measurementsbased on RR Lyrae. Our calibrations of gri-band PL and PW relations, eventhough less precise due to small number of anomalous Cepheids, will be usefulfor distance measurements to dwarf galaxies.

the astronomical journal

Zwicky Transient Facility and Globular Clusters: The Period-Luminosity  and Period-Wesenheit Relations for Anomalous Cepheids Supplemented with Large  Magellanic Cloud Sample