The VMC survey - XX. Identification of new Cepheids in the Small Magellanic Cloud
Author
Moretti, M. I.
Clementini, G.
Ripepi, V.
Marconi, M.
Rubele, S.
Cioni, M. R L
Muraveva, T.
Groenewegen, M. A T
Cross, N. J G
Ivanov, V. D.
Piatti, A. E.
de Grijs, R.
Attention
2299/17445
Abstract
We present Ks-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 = 〈Ks〉 = 17.6 mag. Our method was developed using variable stars previously identified by the optical microlensing survey OGLE.We focus on searching newCepheids in external regions of the SMC for which complete VMC Ks-band observations are available and no comprehensive identification of different types of variable stars from other surveys exists yet.