The VMC survey - XX. Identification of new Cepheids in the Small Magellanic Cloud

We present K-s-band light curves for 299 Cepheids in the Small Magellanic Cloud (SMC) of which 288 are new discoveries that we have identified using multi-epoch near-infrared photometry obtained by the VISTA survey of the Magellanic Clouds system (VMC). The new Cepheids have periods in the range from 0.34 to 9.1 d and cover the magnitude interval 12.9 <= currency sign < K-s > <= currency sign 17.6 mag. Our method was developed using variable stars previously identified by the optical microlensing survey OGLE. We focus on searching new Cepheids in external regions of the SMC for which complete VMC K-s-band observations are available and no comprehensive identification of different types of variable stars from other surveys exists yet.ESO program [179.B-2003]; PRIN-MIUR Chemical and dynamical evolution of the Milky Way and Local Group galaxies [2010LY5N2 T]; PRIN-INAF EXCALIBURS: EXtra-galactic distance scale CALIBration Using first-Rank Standard candles; National Natural Science Foundation of China [11373010]; UK's Science and Technology Facilities Council [ST/M001008/1]; German Academic Exchange ServiceSCI(E)ARTICLEmariaidamoretti@noa.gr21687-169745