High-cadence stellar variability studies of RR Lyrae stars with DECam: New multiband templates

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dc.article.numberA72
dc.catalogadorgjm
dc.contributor.authorBaeza Villagra, Karina
dc.contributor.authorRodriguez-Segovia N.
dc.contributor.authorCatelan, Márcio
dc.contributor.authorRest A.
dc.contributor.authorPapageorgiou A.
dc.contributor.authorMartinez-Vazquez C.E.
dc.contributor.authorValcarce A.A.R.
dc.contributor.authorFerreira Lopes C.E.
dc.contributor.authorBianco F.B.
dc.date.accessioned2025-03-05T19:58:28Z
dc.date.available2025-03-05T19:58:28Z
dc.date.issued2025
dc.description.abstractWe present the most extensive set to date of high-quality RR Lyrae light curve templates in the griz bands, based on time-series observations of the Dark Energy Camera Plane Survey (DECaPS) East field, located in the Galactic bulge at coordinates (RA, Dec)(J2000) = (18:03:34, -29:32:02), obtained with the Dark Energy Camera (DECam) on the 4-m Blanco telescope at the Cerro Tololo Inter-American Observatory (CTIO). Our templates, which cover both fundamental-mode (RRab) and first-overtone (RRc) pulsators, can be especially useful when there is insufficient data for accurately calculating the average magnitudes and colors, hence distances, as well as to inform multiband light curve classifiers, as will be required in the case of the Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST). In this paper, we describe in detail the procedures that were adopted in producing these templates, including a novel approach to account for the presence of outliers in photometry. Our final sample comprises 136 RRab and 144 RRc templates, all of which are publicly available. Lastly, in this paper we study the inferred Fourier parameters and other light curve descriptors, including rise time, skewness, and kurtosis, as well as their correlations with the pulsation mode, period, and effective wavelength.
dc.fechaingreso.objetodigital2025-03-05
dc.format.extent18 páginas
dc.fuente.origenSCOPUS
dc.identifier.doi10.1051/0004-6361/202453129
dc.identifier.issn1432-0746
dc.identifier.scopusidSCOPUS_ID:85217457836
dc.identifier.urihttps://doi.org/10.1051/0004-6361/202453129
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/102382
dc.information.autorucInstituto de Astrofísica; Baeza Villagra, Karina; S/I; 1186423
dc.information.autorucInstituto de Astrofísica; Catelan, Márcio; 0000-0001-6003-8877; 1001556
dc.language.isoen
dc.nota.accesocontenido completo
dc.publisherEDP Sciences
dc.revistaAstronomy and Astrophysics
dc.rightsacceso abierto
dc.rights.licenseCC BY 4.0 Attribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectGalaxy: bulge
dc.subjectMethods: data analysis
dc.subjectStars: variables: RR Lyrae
dc.subject.ddc520
dc.subject.deweyAstronomíaes_ES
dc.titleHigh-cadence stellar variability studies of RR Lyrae stars with DECam: New multiband templates
dc.typeartículo
dc.volumen694
sipa.codpersvinculados1186423
sipa.codpersvinculados1001556
sipa.trazabilidadSCOPUS;2025-02-23
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