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

doi:10.1093/mnras/stw716

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

Centre for Astrophysics Research (CAR)

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Abstract

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 = 〈K_s〉 = 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 K_s-band observations are available and no comprehensive identification of different types of variable stars from other surveys exists yet.

Original language	English
Pages (from-to)	1687-1697
Number of pages	11
Journal	Monthly Notices of the Royal Astronomical Society
Volume	459
Issue number	2
Early online date	30 Mar 2016
DOIs	https://doi.org/10.1093/mnras/stw716
Publication status	Published - 21 Jun 2016

Keywords

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

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10.1093/mnras/stw716

MNRAS-2016-Moretti-1687-97
C 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society
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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. (2016). The VMC survey - XX. Identification of new Cepheids in the Small Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 459(2), 1687-1697. https://doi.org/10.1093/mnras/stw716

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

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AU - Rubele, S.

AU - Cioni, M. R L

AU - Muraveva, T.

AU - Groenewegen, M. A T

AU - Cross, N. J G

AU - Ivanov, V. D.

AU - Piatti, A. E.

AU - de Grijs, R.

N1 - This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © : 2016 M. I. Moretti, et al., Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

PY - 2016/6/21

Y1 - 2016/6/21

N2 - 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.

AB - 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.

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

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