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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

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
DOIs	https://doi.org/10.1093/mnras/stw716
Publication status	Published - 21 Jun 2016
Externally published	Yes

Keywords

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

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10.1093/mnras/stw716

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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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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.",

keywords = "Magellanic Clouds, Methods: data analysis, Stars: variables: Cepheids, Surveys",

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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doi = "10.1093/mnras/stw716",

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AU - Moretti, M. I.

AU - Clementini, G.

AU - Ripepi, V.

AU - Marconi, M.

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.

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.

KW - Magellanic Clouds

KW - Methods: data analysis

KW - Stars: variables: Cepheids

KW - Surveys

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DO - 10.1093/mnras/stw716

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SN - 0035-8711

VL - 459

SP - 1687

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JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

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

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