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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

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)
52 Downloads (Pure)

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 (MNRAS)
Volume459
Issue number2
Early online date30 Mar 2016
DOIs
Publication statusPublished - 21 Jun 2016

Keywords

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

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