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Variability Survey of ω Centauri in the Near-IR: Period-Luminosity Relations

Published online by Cambridge University Press:  31 March 2017

C. Navarrete ,
M. Catelan ,
R. Contreras Ramos ,
F. Gran ,
J. Alonso-García  and
I. Dékány
C. Navarrete
Affiliation:
Instituto de Astrofísica, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 782-0436 Macul, Santiago, Chile email: [cnavarre@astro.puc.cl, mcatelan@astro.puc.cl] Millennium Institute of Astrophysics, Santiago, Chile
M. Catelan
Affiliation:
Instituto de Astrofísica, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 782-0436 Macul, Santiago, Chile email: [cnavarre@astro.puc.cl, mcatelan@astro.puc.cl] Millennium Institute of Astrophysics, Santiago, Chile
R. Contreras Ramos
Affiliation:
Instituto de Astrofísica, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 782-0436 Macul, Santiago, Chile email: [cnavarre@astro.puc.cl, mcatelan@astro.puc.cl] Millennium Institute of Astrophysics, Santiago, Chile
F. Gran
Affiliation:
Instituto de Astrofísica, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 782-0436 Macul, Santiago, Chile email: [cnavarre@astro.puc.cl, mcatelan@astro.puc.cl] Millennium Institute of Astrophysics, Santiago, Chile
J. Alonso-García
Affiliation:
Millennium Institute of Astrophysics, Santiago, Chile Unidad de Astronomía, Fac. Cs. Básicas, Universidad de Antofagasta, Avda. U. de Antofagasta 02800, Antofagasta, Chile
I. Dékány
Affiliation:
Instituto de Astrofísica, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 782-0436 Macul, Santiago, Chile email: [cnavarre@astro.puc.cl, mcatelan@astro.puc.cl] Millennium Institute of Astrophysics, Santiago, Chile
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Abstract

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ω Centauri is by far the most massive globular star cluster in the Milky Way, and possibly the remnant of a dwarf galaxy. As such, it contains a large number of variable stars of different classes. Here we report on an extensive, wide-field time-series study of ω Cen in the J and KS bands, which has allowed us to study the near-IR period-luminosity relations for different variability classes, including the first such relations for the SX Phoenicis stars.

Keywords

stars: variables: RR Lyraestars: variables: SX Phoenicisstars: variables: generalglobular clusters: individual: ω Centauriinfrared: starssurveysstars: horizontal-branch
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S316: Formation, evolution, and survival of massive star clusters , August 2015 , pp. 351 - 352
Copyright
Copyright © International Astronomical Union 2017 

References

Alonso-García, J., Dékány, I., Catelan, M. et al. 2015, AJ, 149, 99 Google Scholar
Catelan, M. & Smith, H. A. 2015, Pulsating Stars (Wiley-VCH)Google Scholar
Matsunaga, N., Fukushi, H., Nakada, Y., et al. 2006, MNRAS, 370, 1979 CrossRefGoogle Scholar
McNamara, D. H. 2011, AJ, 142, 110 Google Scholar
Navarrete, C., Contreras Ramos, R., Catelan, M., et al. 2015 A&A, 577, 99 Google Scholar
Olech, A., Dziembowski, W. A., Pamyatnykh, A. A., et al. 2005, MNRAS, 363, 40 Google Scholar