J/ApJ/810/116ivo://CDS.VizieR/J/ApJ/810/116doi:10.26093/cds/vizier.18100116CDSBoyer M.L.McDonald I.Srinivasan S.Zijlstra A.van Loon J.T.,Olsen K.A.G.Sonneborn G.2017-12-22T05:32:11Z2016-01-19T07:09:51ZCDS support team

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

cds-question@unistra.frgiant-starsmagellanic-cloudsinfrared-photometryvisible-astronomybroad-band-photometryWe have identified a new class of Asymptotic Giant Branch (AGB) stars in the Small and Large Magellanic Clouds (SMC/LMC) using optical to infrared photometry, light curves, and optical spectroscopy. The strong dust production and long-period pulsations of these stars indicate that they are at the very end of their AGB evolution. Period-mass-radius relations for the fundamental-mode pulsators give median current stellar masses of 1.14M_{sun}_ in the LMC and 0.94M_{sun}_ in the SMC (with dispersions of 0.21 and 0.18M_{sun}_, respectively), and models suggest initial masses of <1.5M_{sun}_ and <1.25 M_{sun}_, respectively. This new class of stars includes both O-rich and C-rich chemistries, placing the limit where dredge-up allows carbon star production below these masses. A high fraction of the brightest among them should show S star characteristics indicative of atmospheric C/O~1, and many will form O-rich dust prior to their C-rich phase. These stars can be separated from their less-evolved counterparts by their characteristically red J-[8] colors.2015ApJ...810..116Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/810/116CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)J/MNRAS/451/3504 : Classification of IRS sources in the SMC (Ruffle+, 2015)J/MNRAS/449/639 : VMC survey. XIV. SFR in SMC (Rubele+, 2015)J/MNRAS/440/631 : IR photometry of LMC O-rich evolved stars (Jones+, 2014)J/MNRAS/439/2211 : Post-AGB/RGB and YSOs in SMC (Kamath+, 2014)J/A+A/562/A125 : OGLE-III SMC massive stars VI LCs (Kourniotis+, 2014)J/AJ/144/179 : AKARI-LMC Point-source catalog (Kato+, 2012)J/ApJ/753/71 : Mass-loss return from LMC evolved stars. VI. (Riebel+, 2012)J/AJ/144/4 : Dwarf galaxies in the Local Group (McConnachie+, 2012)J/A+A/536/A60 : EROS-2 Long Period Variables in LMC (Spano+, 2011)J/AJ/142/103 : Cool evolved stars in SAGE-SMC (Boyer+, 2011)J/AcA/61/217 : VI LCs of SMC long-period variables (Soszynski+, 2011)J/MNRAS/411/1597 : LMC point source classification in SAGE-Spec (Woods+, 2011)J/PASP/122/683 : SAGE-Spec Spitzer legacy program (Kemper+, 2010)J/PASJ/62/273 : AKARI SMC photometry (Ita+, 2010)J/AJ/140/416 : IR photometry of massive stars in the SMC (Bonanos+, 2010)J/A+A/506/1277 : Magellanic Cloud C/O stars modelisation (Groenewegen+, 2009)J/AJ/137/4810 : LMC-SAGE AGB star candidates (Srinivasan+, 2009)J/A+A/488/675 : IR photometry of mass-losing AGB stars (Guandalini+, 2008)J/AJ/132/2268 : SAGE calibration stars (Meixner+, 2006)J/A+A/448/181 : IR colours of AGB and post-AGB stars (Groenewegen+, 2006)J/MNRAS/353/705 : OGLE Variables in Magellanic Clouds (Ita+, 2004)J/AJ/127/1531 : Star formation history of SMC (Harris+, 2004)J/AJ/123/855 : Magellanic Clouds Photometric Survey: SMC (Zaritsky+, 2002)J/A+AS/125/419 : Obscured AGB in Magellanic Clouds. I. (Loup+ 1997)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/810/116https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/810/116http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/810/116https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/810/116https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/810/116http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/810/116GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/810/116/table4 (Spectroscopically-identified S-type stars in the SMC)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/810/116/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/810/116/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/810/116/table4?GETtext/xml+votable180.050000true10.642375-72.88350.0055555555555555566/33293 33294 33295 33316 33317 333196.772611666688002e-21 6.118840631666147e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/810/116?format=asciiOpticalInfrareddefaultJ/ApJ/810/116/table4Spectroscopically-identified S-type stars in the SMCrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqRunning sequence numbermeta.idintNameDesignation (<SSTISAGEMA JHHMMSS.ss-DDMMSS.s> in Simbad)meta.id;meta.maincharUmag[19/]? MCPS U band magnitude (1)magphot.mag;em.opt.Ufloatnullablee_Umag[0.09/]? Uncertainty in Umagmagstat.error;phot.mag;em.opt.UfloatnullableBmag[17.85/19.7] MCPS B band magnitude (1)magphot.mag;em.opt.Bfloate_Bmag[0.03/0.2] Uncertainty in Bmagmagstat.error;phot.mag;em.opt.BfloatVmag[15.7/17.6] MCPS V band magnitude (1)magphot.mag;em.opt.Vfloate_Vmag[0.02/0.3] Uncertainty in Vmagmagstat.error;phot.mag;em.opt.VfloatImag[13.4/15.7] MCPS I band magnitude (1)magphot.mag;em.opt.Ifloate_Imag[0.02/0.3] Uncertainty in Imagmagstat.error;phot.mag;em.opt.IfloatJmag[12/14] 2MASS J band magnitudemagphot.mag;em.IR.Jfloate_Jmag[0.02/0.03] Uncertainty in Jmagmagstat.error;phot.mag;em.IR.JfloatHmag[11.2/13] 2MASS H band magnitudemagphot.mag;em.IR.Hfloate_Hmag[0.02/0.03] Uncertainty in Hmagmagstat.error;phot.mag;em.IR.HfloatKsmag[10.9/12.7] 2MASS K_S_ band magnitudemagphot.mag;em.IR.Kfloate_Ksmag[0.02/0.03] Uncertainty in Ksmagmagstat.error;phot.mag;em.IR.Kfloat3.6mag[10.6/12.5] Spitzer/IRAC 3.6 micron band magnitude from SAGEmagphot.mag;em.IR.3-4umfloate_3.6mag[0.01/0.03] Uncertainty in 3.6magmagstat.errorfloat4.5mag[10.7/12.5] Spitzer/IRAC 4.5 micron band magnitude from SAGEmagphot.mag;em.IR.4-8umfloate_4.5mag[0.01/0.03] Uncertainty in 4.5magmagstat.errorfloat5.8mag[10.6/12.4] Spitzer/IRAC 5.8 micron band magnitude from SAGEmagphot.flux.density;em.IR.4-8umfloate_5.8mag[0.01/0.04] Uncertainty in 5.8magmagstat.errorfloat8.0mag[10.5/12.2] Spitzer/IRAC 8.0 micron band magnitude from SAGEmagphot.flux.density;em.IR.8-15umfloate_8.0mag[0.01/0.05] Uncertainty in 8.0magmagstat.errorfloat24mag[9.6/]? Spitzer/MIPS 24um band magnitude from SAGEmagphot.flux.density;em.IR.15-30umfloatnullablee_24mag[0.07/]? Uncertainty in 24magmagstat.errorfloatnullablePer[80/685]? OGLE III I band period (2)dtime.periodintnullableAmp[0.04/0.2]? OGLE III I band amplitude (2)magsrc.var.amplitude;em.opt.IfloatnullableOGLEIIIDisplay the sources within 2" from Soszynski+, 2011, J/AcA/61/217meta.ref.urlintnullableMCPSDisplay the data from MCPS (Zaritsky+, 2002, J/AJ/123/855) within 1"meta.ref.urlchar2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246) within 2"meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from SSTISAGEMA names (right ascension part)degpos.eq.ra;meta.main_DEPositions from SSTISAGEMA names (declination part)degpos.eq.dec;meta.main