J/ApJ/704/531ivo://CDS.VizieR/J/ApJ/704/531doi:10.26093/cds/vizier.17040531CDSKraus A.L.Hillenbrand L.A.2017-06-01T08:52:56Z2011-11-23T08:51:52ZCDS support team

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

cds-question@unistra.frmultiple-starsstellar-agesstellar-massespre-main-sequence-starsstellar-spectral-typesMultiple star systems are commonly assumed to form coevally; they thus provide the anchor for most calibrations of stellar evolutionary models. In this paper, we study the binary population of the Taurus-Auriga association, using the component positions in an HR diagram in order to quantify the frequency and degree of coevality in young binary systems. After identifying and rejecting the systems that are known to be affected by systematic errors (due to further multiplicity or obscuration by circumstellar material), we find that the relative binary ages, |{Delta}log{tau}|, have an overall dispersion {sigma}_|{Delta}log{tau}|_~0.40dex.2009ApJ...704..531Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/704/531CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/519/A83 : T Tau stars toward the Taurus-Auriga region (Takita+ 2010)J/ApJ/703/1964 : Spectra of three nearby star-forming regions (Furlan+, 2009)J/ApJ/703/1511 : Wide binaries in Taurus and Upper Sco (Kraus+, 2009)J/ApJ/662/413 : 2MASS survey of wide multiplicity in 3 associations (Kraus+,J/AJ/132/2665 : QUEST2 BRI photometry of Taurus-Auriga PMS (Slesnick+, 2006)J/A+A/446/485 : New very low-mass members in Taurus (Guieu+, 2006)J/ApJ/647/1180 : Infrared photometry of Taurus SFR (Luhman+, 2006)J/ApJ/636/932 : Mid-infrared survey of T Tauri stars (McCabe+, 2006)J/ApJ/645/676 : Spatial distribution of brown dwarfs in Taurus (Luhman+, 2006)J/ApJ/593/1093 : IC 348 membership (Luhman+, 2003)J/ApJ/581/1194 : Taurus-Auriga PMS stars ages and Teff (Palla+, 2002)J/A+A/337/403 : Low-mass stars evolutionary models (Baraffe+ 1998)J/ApJS/101/117 : UBVRIJHKLMNQ photometry in Taurus-Auriga (Kenyon+ 1995)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/704/531https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/704/531http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/704/531https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/704/531https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/704/531http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/704/531GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/704/531/tablea1 (Single-star sample: observed properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/704/531/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/704/531/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/704/531/tablea1?GETtext/xml+votable180.050000true62.032583328.12444440.005555555555555556Cone search capability for table J/ApJ/704/531/binaries (Binary sample : observed and inferred properties and derived ages and masses)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/704/531/binaries?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/704/531/binaries?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/704/531/binaries?GETtext/xml+votable180.050000true58.622958332.05038890.0055555555555555565/270 292 5887 6/336 337 478 1029 1031 1037 1039 1040 1042 1047 1048 1050 1051 1052 1053 1054 1069 1073 1074 1075 1078 1084 1111 1114 1115 1124 1132 1136 1154 1156 1159 1164 1199 24201 24203 24294 24295 243001.5062136169708525e-19 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/704/531?format=asciiOpticaldefaultJ/ApJ/704/531/tablea1Single-star sample: observed propertiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainJmag2MASS J-band magnitudemagphot.mag;em.IR.JfloatSpTMK spectral typesrc.spTypechare_SpTSpT uncertaintystat.errorfloatAvExtinctionmagphys.absorptionfloatTeffEffective temperatureKphys.temperature.effectiveinte_TeffTeff uncertaintyKstat.error;phys.temperature.effectiveintMbolBolometric massmagphys.magAbs.bolfloatl_Mass[-] Nonphysical mass (1)meta.code.error;phys.masscharMassMasssolMassphys.massfloatE_MassPositive error in MasssolMassstat.error;stat.maxfloate_MassNegative error in MasssolMassstat.error;phys.massfloatl_logtau[-] Nonphysical age (1)meta.code.errorcharlogtauAgelog(yr)time.agefloatE_logtauPositive error in Agelog(yr)stat.error;stat.maxfloate_logtauNegative error in Agelog(yr)stat.errorfloatRefReferences (see refs.dat file)meta.refcharKH07Display the data from Kraus & Hillenbrand, 2007, Cat. J/ApJ/662/413meta.ref.urlchar2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlcharSimbadNameSimbad column added by the CDSmeta.idcharJ/ApJ/704/531/binariesBinary sample : observed and inferred properties and derived ages and massesNameNamemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainSBSpectroscopic binary ("Sep" is null)meta.notecharSep? Separationmaspos.angDistancefloatnullablee_Sep? Uncertainty in Sepmasstat.errorfloatnullablen_Flux[JHK] Band in which "Flux" is measuredinstr.bandpasscharFlux2MASS magnitude in "Band"magphot.magfloatSpTMK spectral typesrc.spTypechare_SpTSpectral type uncertaintystat.errorfloatAvExtinctionmagphys.absorptionfloatTeffEffective temperatureKphys.temperature.effectiveinte_TeffTeff uncertaintyKstat.error;phys.temperature.effectiveintMbolBolometric magnitudemagphys.magAbs.bolfloatWarm[Y/N? ] Warm disk?meta.codecharRefReferences (see refs.dat file)meta.refchar2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlcharSimbadNameSimbad column added by the CDSmeta.idcharMass? Adopted inferred mass from our hybrid systemsolMassphys.massfloatnullableE_Mass? Positive error in MasssolMassstat.error;stat.maxfloatnullablee_Mass? Negative error in MasssolMassstat.error;phys.massfloatnullablel_logtauLimit flag on logtaumeta.code.errorcharlogtauAdopted inferred age from our hybrid systemlog(yr)time.agefloatE_logtau? Positive error in logtaulog(yr)stat.error;stat.maxfloatnullablee_logtau? Negative error in logtaulog(yr)stat.errorfloatnullableMassL? Mass from the Lyon models (1)solMassphys.massfloatnullableE_MassL? Positive error in MassLsolMassstat.error;stat.maxfloatnullablee_MassL? Negative error in MassLsolMassstat.errorfloatnullablel_logtauLLimit flag on logtauLmeta.code.errorcharlogtauLAge from the Lyon models (1)log(yr)time.agefloatE_logtauL? Positive error in logtauLlog(yr)stat.error;stat.maxfloatnullablee_logtauL? Negative error in logtauLlog(yr)stat.errorfloatnullableMassD? Mass from the DM97 model (2)solMassphys.massfloatnullableE_MassD? Positive error in MassDsolMassstat.error;stat.maxfloatnullablee_MassD? Negative error in MassDsolMassstat.errorfloatnullablel_logtauDLimit flag on logtauDmeta.code.errorcharlogtauDAge from the DM97 model (2)log(yr)time.agefloatE_logtauD? Positive error in logtauDlog(yr)stat.error;stat.maxfloatnullablee_logtauD? Negative error in logtauDlog(yr)stat.errorfloatnullableJ/ApJ/704/531/refsReferencesAutAuthorsmeta.bib.authorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference numbermeta.id;meta.mainintBibCodeBibcodemeta.bib.bibcodecharCommCommentmeta.notechar