J/AJ/144/8ivo://CDS.VizieR/J/AJ/144/8doi:10.26093/cds/vizier.51440008CDSSong I.Zuckerman B.Bessell M.S.2018-01-04T08:22:21Z2013-08-29T09:58:24ZCDS support team

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

cds-question@unistra.frstellar-associationsm-starsinfrared-photometryvisible-astronomybroad-band-photometryline-intensitiesradial-velocityWe have spectroscopically identified ~100 G-, K-, and M-type members of the Scorpius-Centaurus complex. To deduce the age of these young stars we compare their Li {lambda}6708 absorption line strengths against those of stars in the TW Hydrae association and {beta} Pictoris moving group. These line strengths indicate that Sco-Cen stars are younger than {beta} Pic stars whose ages of ~12Myr have previously been derived from a kinematic traceback analysis. Our derived age, ~10Myr, for stars in the Lower Centaurus Crux and Upper Centaurus Lupus subgroups of ScoCen is younger than previously published ages based on the moving cluster method and upper main-sequence fitting. The discrepant ages are likely due to an incorrect (or lack of) cross-calibration between model-dependent and model-independent age-dating methods.2012AJ....144....8Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/144/8CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/denis : The DENIS database (DENIS Consortium, 2005)I/284 : The USNO-B1.0 Catalog (Monet+ 2003)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)I/259 : The Tycho-2 Catalogue (Hog+ 2000)IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)J/other/ARA+A/42.685 : Young stars near the Sun (Zuckerman+, 2004)J/PAZh/33/643 : Kinematics of Sco-Cen OB Association (Bobylev+, 2007)J/A+A/448/1001 : Radial velocities of B stars in Sco-Cen (Jilinski+, 2006)J/A+A/403/247 : Variability in the ROSAT All-Sky Survey (Fuhrmeister+, 2003)J/AJ/124/1670 : Post-T Tauri Stars in Sco-Cen Association (Mamajek+, 2002)J/ApJS/101/117 : UBVRIJHKLMNQ photometry in Taurus-Auriga (Kenyon+ 1995)J/ApJS/82/117 : UBV and H-beta in Sco-Cen association (Slawson+, 1992)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/144/8https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/144/8http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/144/8https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/144/8https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/144/8http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/144/8GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/144/8/table1 (*Identified members of Sco-Cen complex)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/144/8/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/144/8/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/144/8/table1?GETtext/xml+votable180.050000true173.0765833-30.33097220.0055555555555555566/24740 28746 29187 29198 29569 38145 38151 38213 41528 41529 41530 41603 41607 41616 41635 41647 41658 41662 41670 42021 42096 42242 42252 42259 42285 42351 42415 42595 42601 42610 42655 42685 42708 42727 42749 42751 42804 42819 42901 42932 42981 43009 43012 43014 43019 43020 43028 43046 43058 43068 43070 43073 43086 43102 43138 43140 43142 43150 43152 43157 43158 43162 43164 43165 43167 43169 43171 43190 43202 43206 43219 43299 43339 43392 43394 43424 43427 43432 43433 43520 43530 43532 43533 43535 43555 43616 44076 44303 44366 47806 47863https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/144/8?format=asciiOpticalInfrareddefaultJ/AJ/144/8/table1*Identified members of Sco-Cen complexrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqRunning sequence number <[SZB2012] NNN> in Simbadmeta.ref.urlintf_Seq[D] Possible member of Tucana/HorA (7)meta.codecharGroupScoCen subgroup (LCC, UCL or US) (1)meta.notecharNameStar namemeta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainDist[35/165]? Distance (2)pcpos.distance;pos.heliocentricintnullableNum[1/4] Number of independent measurementsmeta.numberintW(Li)[100/580] Equivalent width (in m{AA}) of LiI{lambda}6708 (3)0.1pmspect.line.eqWidthintW(Ha)[-60.5/1.6] Equivalent width of H{alpha} (negative values indicate emission) (3)0.1nmspect.line.eqWidth;em.line.HalphafloatVmag[7.86/15.35]? V magnitudemagphot.mag;em.opt.Vfloatnullabler_Vmag[dpu] Origin of the V magnitude (4)meta.ref;pos.framecharV-K[1.17/5.7]? V-K color indexmagphot.color;em.opt.V;em.IR.KfloatnullableB-V[0.45/1.71]? B-V color index (5)magphot.color;em.opt.B;em.opt.Vfloatnullablef[-3.7/-1.9]? X-ray data [f=log(L_X_/L_bol_)] (6)meta.notefloatnullableRV[-9.9/18]? Radial velocitykm/sphys.veloc;pos.heliocentricfloatnullablee_RV? Error in RVkm/sstat.errorfloatnullableUvel[-14.3/-0.9]? U component of space motionkm/sphys.veloc;pos.cartesian.xfloatnullableVvel[-42.1/-10.6]? V component of space motionkm/sphys.veloc;pos.cartesian.yfloatnullableWvel[-32.4/-1]? W component of space motionkm/sphys.veloc;pos.cartesian.zfloatnullableNoteNotes (8)meta.notecharSimbadSimbad column added by the CDSmeta.ref.urlchar