Double-mode Cepheids from the Zwicky Transient Facility Survey

  title={Double-mode Cepheids from the Zwicky Transient Facility Survey},
  author={Vishwa Munir Shah and Xiaodian Chen and Richard de Grijs},
  journal={The Astronomical Journal},
Multimode Cepheids pulsate simultaneously in more than one mode of oscillation. They provide an independent means to test stellar models and pulsation theories. They can also be used to derive metallicities. In recent years, the number of known multimode Cepheids has increased dramatically with the discovery of a large number of Galactic double-mode Cepheids. To date, 209 double-mode Cepheids have been detected in the Galactic bulge and disk, mostly based on the Optical Gravitational Lensing… 



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