J/A+A/578/A3ivo://CDS.VizieR/J/A+A/578/A3doi:10.26093/cds/vizier.35780003CDSGonzalez-Fernandez C.Dorda R.Negueruela I.Marco A.2017-10-16T14:58:24Z2015-05-22T07:44:51ZCDS support team

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

cds-question@unistra.frmagellanic-cloudssupergiant-starsvariable-starsinfrared-photometryspectroscopymorgan-keenan-classificationIn this study, we conduct a pilot program aimed at the red supergiant population of the Magellanic Clouds. We intend to extend the current known sample to the unexplored low end of the brightness distribution of these stars, building a more representative dataset with which to extrapolate their behaviour to other Galactic and extra-galactic environments. We select candidates using only near infrared photometry, and with medium resolution multi-object spectroscopy, we perform spectral classification and derive their line-of-sight velocities, confirming the nature of the candidates and their membership to the clouds. Around two hundred new RSGs have been detected, hinting at a yet to be observed large population. Using near and mid infrared photometry we study the brightness distribution of these stars, the onset of mass-loss and the effect of dust in their atmospheres. Based on this sample, new a priori classification criteria are investigated, combining mid and near infrared photometry to improve the observational efficiency of similar programs as this.2015A&A...578A...3Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/578/A3CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/126/2867 : Red supergiants in Magellanic Clouds (Massey+, 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/578/A3https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/578/A3http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/578/A3https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/578/A3https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/578/A3http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/578/A3GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/578/A3/tablea1 (Catalogue of the observed sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/578/A3/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/578/A3/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/578/A3/tablea1?GETtext/xml+votable180.050000true80.21066667-69.402222220.0055555555555555565/8274 8323 8329 6/33090-33091 33094-33095 33100-33101 33304 33306 33313 333288.157980699529898e-21 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/578/A3?format=asciiInfraredOpticaldefaultJ/A+A/578/A3/tablea1Catalogue of the observed sourcesSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource designation (1)meta.id;meta.maincharCl[LMC SMC] Large or Small Magellanic Cloudmeta.id.parentcharRAJ2000Right ascension (J2000.0) from 2MASSdegpos.eq.ra;meta.mainDEJ2000Declination (J2000.0) from 2MASSdegpos.eq.dec;meta.mainOriginOrigin of the object (2)meta.bibcharVar[Yes/No Unk] Spectral variability detected in this work (3)meta.codecharHV[-60/338] Heliocentric velocitykm/sspect.dopplerVeloc;pos.heliocentricfloatSpTMK spectral type (4)src.spTypecharLCLuminosity class ("C" indicates a Carbon star)src.class.luminositycharNTotal number of observations of this sourcemeta.numberintnullableN0[0/3] Number of nights in 2010meta.numberintN1[0/1] Number of nights in 2011meta.numberintN2[0/2] Number of nights in 2012meta.numberintN3[0/1] Number of nights in 2013meta.numberintMDetails from 2MASS (II/246) and AllWISE (III/328)meta.ref.urlcharJmag[5.9/12.7]? 2MASS J magnitudemagphot.mag;em.IR.JfloatnullableHmag[5.2/11.5]? 2MASS H magnitudemagphot.mag;em.IR.HfloatnullableKsmag[4.7/11.1]? 2MASS Ks magnitudemagphot.mag;em.IR.KfloatnullableW1mag[4.7/11.0]? WISE W1 magnitudemagphot.mag;em.IR.3-4umfloatnullableW2mag[4.3/11.1]? WISE W2 magnitudemagphot.mag;em.IR.4-8umfloatnullableW3mag[3.9/11.8]? WISE W3 magnitudemagphot.flux.density;em.IR.8-15umfloatnullableW4mag[1.4/10.0]? WISE W4 magnitudemagphot.flux.density;em.IR.15-30umfloatnullable