Pulsating stars in ω Centauri. Near-IR properties and period-luminosity relations

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dc.catalogadormas
dc.contributor.authorNavarrete, Camila
dc.contributor.authorCatelan, Marcio
dc.contributor.authorContreras Ramos, Rodrigo
dc.contributor.authorAlonso-García, Javier
dc.contributor.authorGran, Felipe
dc.contributor.authorDékány, István
dc.contributor.authorMinniti, Dante
dc.date.accessioned2024-02-02T13:58:37Z
dc.date.available2024-02-02T13:58:37Z
dc.date.issued2017
dc.description.abstractω Centauri (NGC 5139) contains many variable stars of different types, including the pulsating type II Cepheids, RR Lyrae and SX Phoenicis stars. We carried out a deep, wide-field, near-infrared (IR) variability survey of ω Cen, using the VISTA telescope. We assembled an unprecedented homogeneous and complete J and KS near-IR catalog of variable stars in the field of ω Cen. In this paper we compare optical and near-IR light curves of RR Lyrae stars, emphasizing the main differences. Moreover, we discuss the ability of near-IR observations to detect SX Phoenicis stars given the fact that the amplitudes are much smaller in these bands compared to the optical. Finally, we consider the case in which all the pulsating stars in the three different variability types follow a single period-luminosity relation in the near-IR bands....
dc.fechaingreso.objetodigital2024-05-08
dc.fuente.origenORCID
dc.identifier.doi10.1051/epjconf/201715207005
dc.identifier.urihttps://doi.org/10.1051/epjconf/201715207005
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/81206
dc.information.autorucInstituto de Astrofísica; Catelan , Marcio; 0000-0001-6003-8877; 1001556
dc.language.isoen
dc.rightsacceso abierto
dc.titlePulsating stars in ω Centauri. Near-IR properties and period-luminosity relations
dc.typecomunicación de congreso
sipa.codpersvinculados1001556
sipa.trazabilidadORCID;2024-01-22
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