Double-mode Cepheids from the Zwicky Transient Facility Survey

Multi-mode Cepheids pulsate simultaneously in more than one mode of oscillation. They provide an independent means to test stellar models and pulsation theories. can also be used derive metallicities. In recent years, the number known multi-mode has increased dramatically with discovery a large Galactic double-mode Cepheids. To date, 209 have been detected bulge disk, mostly based on Optical Gravitational Lensing Experiment's (OGLE) catalog. this paper, we conduct comprehensive search for northern sky Zwicky Transient Facility Data Release 5. We found 72 such objects Milky Way. The periods 30 sample already included OGLE catalog show excellent agreement periods. period ratios our new are consistent those Cepheids, as evidenced by their loci so-called `Petersen diagram'. Compared OGLE, completeness Cepheid is around 71\%. much improved temporal sampling offers significant scope find especially at distribution's short-period end.