J/AJ/148/118ivo://CDS.VizieR/J/AJ/148/118doi:10.26093/cds/vizier.51480118CDSNie J.D.Wood P.R.2017-09-22T16:16:15Z2014-12-10T15:20:00ZCDS support team

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

cds-question@unistra.frmagellanic-cloudsmultiple-starsgiant-starsradial-velocityEllipsoidal red giant binaries are close binary systems where an unseen, relatively close companion distorts the red giant, leading to light variations as the red giant moves around its orbit. These binaries are likely to be the immediate evolutionary precursors of close binary planetary nebula and post-asymptotic giant branch and post-red giant branch stars. Due to the MACHO and OGLE photometric monitoring projects, the light variability nature of these ellipsoidal variables has been well studied. However, due to the lack of radial velocity curves, the nature of their masses, separations, and other orbital details has so far remained largely unknown. In order to improve this situation, we have carried out spectral monitoring observations of a large sample of 80 ellipsoidal variables in the Large Magellanic Cloud and we have derived radial velocity curves. At least 12 radial velocity points with good quality were obtained for most of the ellipsoidal variables. The radial velocity data are provided with this paper. Combining the photometric and radial velocity data, we present some statistical results related to the binary properties of these ellipsoidal variables.2014AJ....148..118Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/148/118CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/247 : Variable Stars in the Large Magellanic Clouds (MACHO, 2001)I/244 : OGLE General Catalog of Stars. I. (Szymanski+ 1996)J/MNRAS/421/2616 : LMC eccentric ellipsoidal red giant binariesJ/MNRAS/405/1770 : LMC red giants in E sequence (Nicholls+, 2010)J/MNRAS/399/2063 : LMC red giants in D sequence (Nicholls+, 2009)J/AJ/136/1242 : LMC long-period variables from MACHO (Fraser+, 2008)J/A+A/439/559 : OGLE eclipsing binaries (Groenewegen+, 2005)J/MNRAS/353/705 : OGLE Variables in Magellanic Clouds (Ita+, 2004)J/MNRAS/348/1439 : OGLE II Galactic center proper motions (Sumi+, 2004)J/AcA/53/1 : OGLE eclipsing binaries in LMC (Wyrzykowski+, 2003)J/AcA/52/129 : DIA OGLE2 candidate variable stars catalog (Wozniak+, 2002)J/AcA/49/223 : BVI photometry of OGLE LMC Cepheids (Udalski+, 1999)http://macho.anu.edu.au/ : MACHO Home Pagehttp://ogle.astrouw.edu.pl/ : OGLE Home Pageftp://ftp.astrouw.edu.pl/ogle/ogle2 : OGLE-IIftp://ftp.astrouw.edu.pl/ogle/ogle3 : OGLE-IIIftp://ftp.astrouw.edu.pl/ogle/ogle4 : OGLE-IVhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/148/118https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/148/118http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/148/118https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/148/118https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/148/118http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/148/118GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/148/118/table2 (Properties of the observed ellipsoidal variables)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/148/118/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/148/118/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/148/118/table2?GETtext/xml+votable180.050000true75.2795-69.34358330.0055555555555555565/8274 6/33053 33055 33077 33089 33090 33091 33120 331218.650015785639275e-20 4.920466254354166e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/148/118?format=asciiOpticaldefaultJ/AJ/148/118/table1Radial velocities Vr and 1{sigma} errors {sigma}_Vr_ in km/srecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintOGLEIIOGLE II designation (HHMMSS.ss+DDMMSS.s, J2000)meta.id;meta.maincharHJDHeliocentric Julian date (HJD-2450000)dtime.epochdoubleHRVHeliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloate_HRV1{sigma} error in HRVkm/sstat.errorfloatJ/AJ/148/118/table2Properties of the observed ellipsoidal variablesType[e +sr,] Binary type (2)src.classcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintOGLEIIOGLE II designation (HHMMSS.ss+DDMMSS.s, J2000)meta.id;meta.maincharprimaryNNumber of velocity observations for this variable (table1)meta.numberintnullablePer[72/642] Orbital perioddtime.periodfloatVCSimbad column added by the CDSmeta.ref.urlchar<Imag>Mean magnitude in I bandmagphot.mag;em.opt.Ifloat<Vmag>? Mean magnitude in V bandmagphot.mag;em.opt.Vfloatnullable<Bmag>? Mean magnitude in MACHO blue bandmagphot.mag;em.opt.Bfloatnullable<Rmag>? Mean magnitude in MACHO red bandmagphot.mag;em.opt.Rfloatnullable<Kmag>Mean magnitude in 2MASS Ks bandmagphot.mag;em.IR.Kfloat<Iamp>Mean amplitude of light variability in the I bandmagsrc.var.amplitudefloatDHRV[5/120]? Full radial velocity amplitudekm/sphys.veloc;src.orbitalintnullableLumLuminositysolLumphys.luminosityintTeffEffective temperatureKphys.temperature.effectiveint<Rad>[40/156] Mean radiussolRadphys.size.radius;stat.meanintLoc[1/2] Location of the star on the Imag-logPeriod and W-logPeriod planes (Figure1 in the paper) (1)meta.noteintLCObject which has OGLE III light curve datameta.notecharS04Display the data from Soszynski et al. 2004 (cat. J/AcA/54/347)meta.ref.urlchar2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition derived from OGLE designation (right ascension part)degpos.eq.ra;meta.main_DEPosition derived from OGLE designation (declination part)degpos.eq.dec;meta.main