J/MNRAS/461/794ivo://CDS.VizieR/J/MNRAS/461/794doi:10.26093/cds/vizier.74610794CDSPecaut M.J.Mamajek E.E.2024-08-16T20:18:03Z2016-07-27T07:42:59ZCDS support team

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

cds-question@unistra.frstellar-associationsvisible-astronomybroad-band-photometryinfrared-photometryproper-motionsWe present results of a spectroscopic survey for new K- and M-type members of Scorpius-Centaurus (Sco-Cen), the nearest OB Association (~100-200pc). Using an X-ray, proper motion and color-magnitude selected sample, we obtained spectra for 361 stars, for which we report spectral classifications and Li and Ha equivalent widths. We identified 156 new members of Sco-Cen, and recovered 51 previously published members. We have combined these with previously known members to form a sample of 493 solar-mass (~0.7-1.3M_[sun}_) members of Sco-Cen.We investigated the star-formation history of this sample, and re-assessed the ages of the massive main-sequence turn-off and the G-type members in all three subgroups. We performed a census for circumstellar disks in our sample using WISE infrared data and find a protoplanetary disk fraction for K-type stars of 4.4^+1.6^_-0.9_% for Upper Centaurus-Lupus and Lower Centaurus-Crux at ~16Myr and 9.0^+0.4^_-2.2_% for Upper Scorpius at~10Myr.2016MNRAS.461..794Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/461/794CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/312 : PPMX Catalog of positions and proper motions (Roeser+ 2008)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)II/311 : WISE All-Sky Data Release (Cutri+ 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/461/794https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/461/794http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/461/794https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/461/794https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/461/794http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/461/794GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/461/794/table1 (Photometry and proper motion data for candidates in the Sco-Cen region)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/461/794/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/461/794/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/461/794/table1?GETtext/xml+votable180.050000true150.181875-65.37097220.005555555555555556Cone search capability for table J/MNRAS/461/794/table3 (Infrared photometry and infrared excesses for members of Sco-Cen)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/461/794/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/461/794/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/461/794/table3?GETtext/xml+votable180.050000true151.7322083-63.86905560.005555555555555556Cone search capability for table J/MNRAS/461/794/table4 (Membership properties for Sco-Cen candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/461/794/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/461/794/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/461/794/table4?GETtext/xml+votable180.050000true150.181875-65.37097220.005555555555555556Cone search capability for table J/MNRAS/461/794/table7 (Stellar properties for Sco-Cen members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/461/794/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/461/794/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/461/794/table7?GETtext/xml+votable180.050000true151.7322083-63.86905560.005555555555555556Cone search capability for table J/MNRAS/461/794/table8 (Objects rejected as Sco-Cen members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/461/794/table8?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/461/794/table8?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/461/794/table8?GETtext/xml+votable180.050000true150.181875-65.37097220.005555555555555556Cone search capability for table J/MNRAS/461/794/table9 (Stellar parameters for Sco-Cen G-Type stars not included in Table 7)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/461/794/table9?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/461/794/table9?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/461/794/table9?GETtext/xml+votable180.050000true162.4835875-69.85601780.005555555555555556Cone search capability for table J/MNRAS/461/794/table10 (Stellar parameters for Sco-Cen main sequence turnoff stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/461/794/table10?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/461/794/table10?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/461/794/table10?GETtext/xml+votable180.050000true248.9706369-28.21601720.0055555555555555565/10653 10738-10739 10745 11075 11089-11091 6/29226 29324 29348 29355 30726 30857 37150 37173-37174 37177 37179 37191 37203 37209 37213 37222 37228-37229 37231 37234 37237-37238 37240 37245 37267 37270 37278 37316 37322 37328 37889-37890 37892-37893 37901 37905 37908-37909 37918-37919 37928 37937 37955-37956 37959 37964 37968-37969 37987 38035 38038 38144 38151 38159 38166 38178 38191 38203 38255 41197 41199 41508 41513 41521 41526 41528-41530 41536 41542 41554 41569-41570 41583 41600-41601 41603 41606-41607 41621 41635 41643 41646-41647 41652 41658 41662 41664 41666 41670 41673 41679 41681 41689 41772 41780 41803 41806 41820-41821 41827 41837 41856-41858 41860 41872 41880 41886 41892 41894-41895 41900 41915 41917 41926 41929 41943 41946-41947 41949-41950 41954 41963-41964 41972-41973 41981-41983 42171 42218 42220 42222-42223 42232 42401-42402 42428 42512 42521 42532 42535 42541 42544 42546 42555 42557 42559 42568 42570-42571 42577 42586 42589-42591 42595 42598-42601 42604-42605 42607-42609 42611 42616-42618 42620 42623-42624 42626 42628 42630 42633-42635 42637 42640 42642 42646 42650 42652-42653 42655 42658 42662-42664 42666 42671-42673 42675 42677-42679 42682-42683 42685 42687-42689 42691-42692 42696 42699-42700 42703-42704 42707-42708 42712 42719 42725 42727-42730 42735-42736 42739 42743 42749 42757 42760 42782 42789 42792 42798 42800 42808-42810 42812 42854 42858-42859 42873 42880 42884 42886 42888 42890-42891 42900-42901 42903 42907-42908 42910-42912 42916 42924 42931-42933 42938-42939 42941 42943 42945-42950 42964 42968 42970-42971 42974 42977-42978 42984 42986 42988 42990-42992 42994-42995 42999-43000 43002 43004 43009 43011-43012 43014 43016 43019-43020 43028 43031 43035 43037 43040 43044 43046 43052 43058 43062 43064-43066 43068 43072 43086 43091 43102 43107 43112-43113 43116 43121 43123 43129 43137 43139 43142 43145-43146 43148-43150 43152 43158 43161-43162 43164-43165 43167 43169 43171 43173 43175 43177 43180-43182 43187-43188 43192-43193 43195-43196 43198 43201-43203 43206-43207 43211 43219-43220 43224-43225 43227 43230 43232 43236 43244 43247 43251 43254 43257-43258 43283 43286-43287 43289 43292 43295 43299 43304-43305 43308 43322-43323 43326-43327 43335-43336 43339-43341 43346 43349-43350 43355-43356 43365-43366 43378 43382-43383 43392 43394 43397-43398 43407 43411 43414-43417 43420 43424 43427-43430 43432-43433 43435 43442 43446 43452 43460-43461 43464-43465 43475 43481 43520 43525-43526 43529-43533 43535 43538-43539 43543 43546 43553 43555 43558 43571 43583 43588 43598 43608 43616 43667 43683 44032 44034-44036 44038 44040 44050 44055 44059 44062-44063 44065 44069 44076 44080-44081 44083-44084 44094 44099 44101 44104 44106 44108 44111 44113-44114 44116 44118-44119 44121 44129 44133-44134 44136 44146 44150-44151 44156 44162 44288-44289 44295 44297 44299 44305 44307-44308 44311-44312 44315-44318 44323-44324 44327 44329 44333 44337 44352-44353 44378-44379 44384-44385 44387-44389 44391 44397 44400-44402 44408 44421 44429 44435 44439 44481-44483 44487 44497 445088.650015785639275e-20 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/461/794?format=asciiOpticalInfrareddefaultJ/MNRAS/461/794/table1Photometry and proper motion data for candidates in the Sco-Cen regionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPPMXPPMX identifier (HHMMSS.s+DDMMSS.s)meta.idchar2MASS2MASS identifier (HHMMSSss+DDMMSSs)meta.id;meta.maincharprimarypmRAProper motion in right ascensionmas/yrpos.pm;pos.eq.rafloate_pmRAUncertainty in Proper motion in right ascensionmas/yrstat.error;pos.pm;pos.eq.rafloatpmDEProper motion in declinationmas/yrpos.pm;pos.eq.decfloate_pmDEUncertainty in Proper motion in declinationmas/yrstat.error;pos.pm;pos.eq.decfloatr_pmProper motion reference (2)meta.ref;pos.framecharVmag? Johnson V band magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? Uncertainty in V band magnitudemagstat.error;phot.mag;em.opt.Vfloatnullabler_Vmag? V band magnitude reference (2)meta.ref;pos.framecharB-V? Johnson B-V color indexmagphot.color;em.opt.B;em.opt.Vfloatnullablee_B-V? Uncertainty in B-V color indexmagstat.error;phot.color;em.opt.Bfloatnullabler_B-V? B-V color index reference (2)meta.ref;phot.color;em.opt.BcharJmag2MASS J band magnitudemagphot.mag;em.IR.Jfloate_JmagUncertainty in J band magnitudemagstat.error;phot.mag;em.IR.JfloatHmag2MASS H band magnitudemagphot.mag;em.IR.Hfloate_HmagUncertainty in H band magnitudemagstat.error;phot.mag;em.IR.HfloatKsmag2MASS Ks band magnitudemagphot.mag;em.IR.Kfloate_KsmagUncertainty in K_s band magnitudemagstat.error;phot.mag;em.IR.Kfloatf2M[a-c] 2MASS flag (1)meta.codechar_RAPosition from 2MASS name (right ascension part)degpos.eq.ra;meta.main_DEPosition from 2MASS name (declination part)degpos.eq.dec;meta.mainJ/MNRAS/461/794/table3Infrared photometry and infrared excesses for members of Sco-CenrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2MASS2MASS identifier (HHMMSSss+DDMMSSs)meta.id;meta.maincharWISEWISE identifier (HHMMSS.ss+DDMMSS.s)meta.idcharW1mag? W1 band magnitude (1)magphot.mag;em.IR.3-4umfloatnullablee_W1mag? Uncertainty in W1 band magnitudemagstat.error;phot.magfloatnullableW2mag? W2 band magnitude (1)magphot.mag;em.IR.4-8umfloatnullablee_W2mag? Uncertainty in W2 band magnitudemagstat.error;phot.magfloatnullableW3mag? W3 band magnitude (1)magphot.flux.density;em.IR.8-15umfloatnullablee_W3mag? Uncertainty in W3 band magnitudemagstat.error;phot.magfloatnullableW4mag? W4 band magnitude (1)magphot.flux.density;em.IR.15-30umfloatnullablee_W4mag? Uncertainty in W4 band magnitudemagstat.error;phot.magfloatnullableE(Ks-W1)? Ks-W1 color index excess (1)magphot.color;em.IR;em.IRfloatnullablee_E(Ks-W1)? Uncertainty in Ks-W1 color index excessmagstat.errorfloatnullableE(Ks-W2)? Ks-W2 color index excess (1)magphot.color;em.IR;em.IRfloatnullablee_E(Ks-W2)? Uncertainty in Ks-W2 color index excessmagstat.errorfloatnullableE(Ks-W3)? Ks-W3 color index excess (1)magphot.color;em.IR;em.IRfloatnullablee_E(Ks-W3)? Uncertainty in Ks-W3 color index excessmagstat.errorfloatnullableE(Ks-W4)? Ks-W4 color index excess (1)magphot.color;em.IR;em.IRfloatnullablee_E(Ks-W4)? Uncertainty in Ks-W4 color index excessmagstat.errorfloatnullable_RAPosition from 2MASS name (right ascension part)degpos.eq.ra;meta.main_DEPosition from 2MASS name (declination part)degpos.eq.dec;meta.mainJ/MNRAS/461/794/table4Membership properties for Sco-Cen candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2MASS2MASS identifier (HHMMSSss+DDMMSSs)meta.id;meta.maincharSpType? Spectral typesrc.spTypecharr_SpTypeSpectral type reference, in refs.dat filemeta.ref;pos.framecharEW(Li)? Li equivalent width0.1pmspect.line.eqWidthintnullabler_EW(Li)? Li equivalent width reference, in refs.dat filemeta.ref;pos.framecharMemLi? Li membership statusmeta.code.membercharMempmProper motion Membership statusmeta.code.membercharMemlogg? logg membership statusmeta.code.membercharMemHRD? HRD membership statusmeta.code.membercharMemFinalFinal membership statusmeta.code.membercharr_YSReference of the first work that identify the star as young, in refs.dat filemeta.ref;pos.framecharr_SCReference of the first work that identify the star a member of Sco-Cen, in refs.dat filemeta.ref;pos.framechar_RAPosition from 2MASS name (right ascension part)degpos.eq.ra;meta.main_DEPosition from 2MASS name (declination part)degpos.eq.dec;meta.mainJ/MNRAS/461/794/table7Stellar properties for Sco-Cen membersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDStar Identifiermeta.idint2MASS2MASS identifier (HHMMSSss+DDMMSSs)meta.id;meta.maincharGroupSubgroup membership (LCC, UCL or US)meta.idcharSpTypeSpectral typesrc.spTypecharn_SpType[*] Note on SpType (1)meta.notecharr_SpTypeSpectral type reference, in refs.dat filemeta.ref;pos.framecharEW(Ha)? Halpha equivalent width (2)0.1nmspect.line.eqWidth;em.line.Halphafloatnullabler_EW(Ha)Halpha equivalent width reference, in refs.dat filemeta.ref;pos.framecharAVVisual extinctionmagphys.absorption;em.opt.Vfloate_AV? Uncertainty in visual extinctionmagstat.errorfloatnullableplxkinKinematic parallaxmaspos.parallax.dynfloate_plxkin? Kinematic parallaxmasstat.errorfloatnullablelogTLog of effective temperaturelog(K)phys.temperature.effectivefloate_logT? Uncertainty in log of effective temperaturelog(K)stat.errorfloatnullablelogLLog of Luminositylog(solLum)phys.luminosityfloate_logL? Uncertainty in Log of Luminositylog(solLum)stat.errorfloatnullableAge? Stellar age from evolutionary modelsMyrtime.ageintnullablefMS[0 MS] Main sequence flagmeta.codecharMass? Stellar mass from evolutionary modelssolMassphys.massfloatnullableDiskTypeDisk type using Espaillat et al. (2012ApJ...747..103E) nomenclaturesrc.classcharNameOther stellar namemeta.idcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from 2MASS name (right ascension part)degpos.eq.ra;meta.main_DEPosition from 2MASS name (declination part)degpos.eq.dec;meta.mainJ/MNRAS/461/794/table8Objects rejected as Sco-Cen membersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2MASS2MASS identifier (HHMMSSss+DDMMSSs)meta.id;meta.maincharSpTypeSpectral typesrc.spTypecharr_SpTypeSpectral type reference, in refs.dat filemeta.ref;pos.framecharReasonRejection reasonmeta.notecharNameOther stellar namemeta.idcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from 2MASS name (right ascension part)degpos.eq.ra;meta.main_DEPosition from 2MASS name (declination part)degpos.eq.dec;meta.mainJ/MNRAS/461/794/table9Stellar parameters for Sco-Cen G-Type stars not included in Table 7recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStellar Namemeta.idchar2MASS2MASS identifier (HHMMSSss+DDMMSSs)meta.id;meta.maincharSpTypeSpectral Typesrc.spTypecharn_SpType[*] Note on SpTye (1)meta.notecharr_SpTypeSpectral Type reference, in refs.dat filemeta.ref;pos.framecharGroupSubgroup membership (LCC, UCL or US)meta.idcharAVVisual extinctionmagphys.absorption;em.opt.Vfloate_AV? Uncertainty in visual extinctionmagstat.errorfloatnullablelogTlog of effective temperaturelog(K)phys.temperature.effectivefloate_logT? Uncertainty in log of effective temperaturelog(K)stat.errorfloatnullablelogLlog of luminositylog(solLum)phys.luminosityfloate_logL? Uncertainty in log of luminositylog(solLum)stat.errorfloatnullableAgeStellar age from evolutionary models (2)Myrtime.ageintMassStellar mass from evolutionary models (2)solMassphys.massfloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from Simbad (right ascension part)degpos.eq.ra;meta.main_DEPosition from Simbad (declination part)degpos.eq.dec;meta.mainJ/MNRAS/461/794/table10Stellar parameters for Sco-Cen main sequence turnoff starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject Namemeta.id;meta.maincharSpTypeSpectral Typesrc.spTypecharr_SpType[1/2] Spectral Type reference (1)meta.ref;pos.frameintGroupSubgroup membership (LCC, UCL or US)meta.idcharAVVisual extinctionmagphys.absorption;em.opt.Vfloate_AV? Uncertainty in visual extinctionmagstat.errorfloatnullablelogTLog of effective temperaturelog(K)phys.temperature.effectivefloate_logT? Uncertainty in log of effective temperaturelog(K)stat.errorfloatnullablelogLlog of luminositylog(solLum)phys.luminosityfloate_logL? Uncertainty in log of luminositylog(solLum)stat.errorfloatnullablel_Age? Upper/Lower limit on agemeta.code.error;time.agecharAgeStellar age from evolutionary models (2)Myrtime.ageintSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from Simbad (right ascension part)degpos.eq.ra;meta.main_DEPosition from Simbad (declination part)degpos.eq.dec;meta.mainJ/MNRAS/461/794/refsReferencesComCommentsmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference codemeta.notecharBibCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorchar