J/MNRAS/424/1807ivo://CDS.VizieR/J/MNRAS/424/1807doi:10.26093/cds/vizier.74241807CDSRipepi V.Moretti M.I.Marconi M.Clementini G.Cioni M.-R.L.,Marquette J.B.Girardi L.Rubele S.Groenewegen M.A.T.De Grijs R.,Gibson B.K.Oliveira J.M.van Loon J.TEmerson J.P.2024-07-18T20:18:44Z2014-02-17T15:23:57ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frsurveysmagellanic-cloudsvariable-starsphotometryThe VISTA Magellanic Cloud (VMC; PI: M.-R. L. Cioni) survey is collecting deep K_s_-band time series photometry of the pulsating variable stars hosted by the system formed by the two Magellanic Clouds (MCs) and the bridge connecting them. In this paper, we present the first results for classical Cepheids, from the VMC observations of two fields in the Large Magellanic Cloud (LMC), centred on the South Ecliptic Pole and the 30 Doradus star-forming regions, respectively. The VMC K_s_-band light curves of the Cepheids are well sampled (12 epochs) and of excellent precision (typical errors of ~0.01mag). We were able to measure for the first time the K_s_magnitude of the faintest classical Cepheids in the LMC (K_s_~17.5mag), which are mostly pulsating in the first overtone (FO) mode, and to obtain FO period--luminosity (PL), period-Wesenheit (PW) and period-luminosity-colour (PLC) relations, spanning the full period range from 0.25 to 6d. Since the longest period Cepheid in our data set has a variability period of 23d, we have complemented our sample with literature data for brighter F Cepheids. On this basis, we have built a PL relation in the K_s_ band that, for the first time, includes short-period - hence low-luminosity - pulsators, and spans the full range from 1.6 to 100 d in period.We also provide the first ever empirical PW and PLC relations using the (V-K_s_) colour and time series K_s_photometry. The very small dispersion (~0.07mag) of these relations makes them very well suited to study the three-dimensional geometry of the Magellanic system. The use of 'direct' (parallax- and Baade--Wesselink-based) distance measurements to both Galactic and LMC Cepheids allowed us to calibrate the zero-points of the PL, PW and PLC relations obtained in this paper, and in turn to estimate an absolute distance modulus of (m-M)_0_=18.46+/-0.03mag for the LMC. This result is in agreement with most of the latest literature determinations based on classical Cepheids.2012MNRAS.424.1807Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/424/1807CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/531/A157 : LMC planetary nebulae (VMC Survey II) (Miszalski+, 2011)J/A+A/537/A105 : Modelisation of AGB stars in the LMC (Gullieuszik+, 2012)J/A+A/549/A29 : Quasars behind the Magellanic system (Cioni+, 2013)J/A+A/554/A33 : VMC Survey. VII. 30 Doradus reddening map (Tatton+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/424/1807https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/424/1807http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/424/1807https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/424/1807https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/424/1807http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/424/1807GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/424/1807/cepheids (Results for classical Cepheids in the 30 Dor (table2) and SEP (table 3) fields)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/424/1807/cepheids?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/424/1807/cepheids?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/424/1807/cepheids?GETtext/xml+votable180.050000true82.70296-69.813330.0055555555555555566/33091 33094-33097 33100 33108-33109 33792 375467.952274030004205e-20 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/424/1807?format=asciiOpticaldefaultJ/MNRAS/424/1807/cepheidsResults for classical Cepheids in the 30 Dor (table2) and SEP (table 3) fieldsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFSimbad column added by the CDSobs.fieldcharVMCVMC name, JHHMMSS.ss+DDMMSS.smeta.id;meta.maincharn_VMC[a] a: star was not used to derive the period-luminosity/Wesenheit/color relationsmeta.notecharlcPlot of the light curvemeta.ref.urlcharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainMPulsation mode (Fundamental or First Overtone)meta.code;src.varchar<Imag>? Average I magnitude (not for SEP field)magphot.mag;em.opt.Ifloatnullable<Vmag>? Average V magnitudemagphot.mag;em.opt.VfloatnullablePerPerioddtime.perioddouble<Ksmag>Average Ks magnitudemagphot.mag;em.IR.Kfloate_<Ksmag>rms uncertainty on <Ksmag>magstat.error;phot.mag;em.IR.KfloatKampAmplitude in Ks bandmagsrc.var.amplitudefloatE(V-I)? Colour excess (not for SEP field)magphot.color.excessfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchar