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

M. I. Moretti*, G. Clementini, V. Ripepi, M. Marconi, S. Rubele, M. R.L. Cioni, T. Muraveva, M. A.T. Groenewegen, N. J.G. Cross, V. D. Ivanov, A. E. Piatti, R. de Grijs

*Corresponding author for this work

Research output: Contribution to journalArticle

10 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)1687-1697
Number of pages11
JournalMonthly Notices of the Royal Astronomical Society
Volume459
Issue number2
DOIs
Publication statusPublished - 21 Jun 2016
Externally publishedYes

Keywords

  • Magellanic Clouds
  • Methods: data analysis
  • Stars: variables: Cepheids
  • Surveys

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