J/ApJS/177/551ivo://CDS.VizieR/J/ApJS/177/551doi:10.26093/cds/vizier.21770551CDSMerin B.Jorgensen J.Spezzi L.Alcala J.M.Evans II N.J.Harvey P.M.,Prusti T.Chapman N.Huard T.Van Dishoeck E.F.Comeron F.2017-12-06T07:37:59Z2010-01-04T15:00:09ZCDS support team

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

cds-question@unistra.frinfrared-photometrypre-main-sequence-starsWe present c2d Spitzer IRAC observations of the Lupus I, III, and IV dark clouds and discuss them in combination with optical, near-infrared, and c2d MIPS data. With the Spitzer data, the new sample contains 159 stars, 4 times larger than the previous one. It is dominated by low- and very low mass stars, and it is complete down to M~0.1M_{sun}_. We find 30%-40% binaries with separations between 100 and 2000AU with no apparent effect on the disk properties of the members. A large majority of the objects are Class II or III objects, with only 20(12%) Class I or flat-spectrum sources. The disk sample is complete down to "debris"-like systems in stars as small as M~0.2M_{sun}_ and includes substellar objects with larger IR excesses. The disk fraction in Lupus is 70%-80%, consistent with an age of 1-2Myr. However, the young population contains 20% optically thick accretion disks and 40% relatively less flared disks. A growing variety of inner disk structures is found for larger inner disk clearings for equal disk masses.2008ApJS..177..551Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/177/551CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/658/480 : Pre-main-sequence stars in Lupus association (Makarov+, 2007)J/ApJ/676/427 : MIPS and IRAC Chamaeleon II PMS data (Alcala+, 2008)J/ApJ/680/1295 : Physical properties of Cha II PMS (Spezzi+, 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/177/551https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/177/551http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/177/551https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/177/551https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/177/551http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/177/551GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/177/551/lupus (Young Stellar Objects and Pre-Main Sequence stars in Lupus: optical, near-IR, far-IR (IRAS, MIPS, IRAS, 1.3mm) fluxes)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/177/551/lupus?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/177/551/lupus?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/177/551/lupus?GETtext/xml+votable180.050000true234.5129167-33.23269440.0055555555555555565/10649 10653 6/42595 42611 42621 42727 42736 42738 427441.0763920601544068e-21 6.185923063528282e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/177/551?format=asciiInfrareddefaultJ/ApJS/177/551/table10SED analysis results for the Class II and III objects in LupusrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLupLupus dark cloud number (RRR)meta.id.parentnullable[MJS2008]Running source numbermeta.id;meta.mainintNameObject identificationmeta.idcharSpTMK Spectral typesrc.spTypecharr_SpTReference for SpType (1)meta.ref;pos.frameintAVV band extinctionmagphys.absorption;em.opt.VfloatLumLuminositysolLumphys.luminositydoubleD/SDisk to star luminosity ratiophys.luminosity;arith.ratiofloatLoffWavelength where the IR excess beginsumem.wlfloatalpha? Slope of the SED in the IR excess regionspect.indexfloatnullableSelSelection criteria (1)meta.codecharPMSPMS status (G1)meta.code.classcharBinBinary system? (Yes or No)meta.code.multipcharSEDSED type (4)meta.code.classcharJ/ApJS/177/551/lupusYoung Stellar Objects and Pre-Main Sequence stars in Lupus: optical, near-IR, far-IR (IRAS, MIPS, IRAS, 1.3mm) fluxesRem[abc] Remarks (1)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLupLupus dark cloud number (RRR)meta.id.parentnullable[MJS2008]Running source numbermeta.id;meta.mainintprimarySSTc2dThe c2d source number (JHHMMSS.s-DDMMSS) (1)meta.idcharONameOther object identificationsmeta.idcharRAJ2000Spitzer Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Spitzer Degree of Declination (J2000)pos.eq.dec;meta.mainSelSelection criteria (3)meta.codecharPMSPMS status (G1)meta.code.classcharClPMS class (2)meta.code.classcharRefsReferences (3)meta.ref;pos.framecharASimbad column added by the CDSmeta.ref.urlcharNameObject identificationmeta.idcharBmag? B band (0.44 micron) magnitude (1)magphot.mag;em.opt.Bfloatnullablee_Bmag? Error in Bmag (1)magstat.error;phot.mag;em.opt.BfloatnullableVmag? V band (0.55 micron) magnitude (1)magphot.mag;em.opt.Vfloatnullablee_Vmag? Error in Vmag (1)magstat.error;phot.mag;em.opt.VfloatnullableRmag? R_c_ band (0.64 micron) magnitude (2)magphot.mag;em.opt.Rfloatnullablee_Rmag? Error in Rcmag (2)magstat.error;phot.mag;em.opt.RfloatnullableIcmag? I_c_ band (0.79 micron) magnitude (2)magphot.mag;em.opt.Ifloatnullablee_Icmag? Error in Icmag (2)magstat.error;phot.mag;em.opt.Ifloatnullablezmag? z band (0.96 micron) magnitude (2)magphot.mag;em.opt.Ifloatnullablee_zmag? Error in zmag (2)magstat.error;phot.mag;em.opt.Ifloatnullablel_JmagLimit flag on Jmag (3)meta.code.errorcharJmag? J band (1.23 micron) magnitude (3)magphot.mag;em.IR.Jfloatnullablee_Jmag? Error in Jmag (3)magstat.error;phot.mag;em.IR.Jfloatnullablel_HmagLimit flag on Hmag (3)meta.code.errorcharHmag? H band (1.66 micron) magnitude (3)magphot.mag;em.IR.Hfloatnullablee_Hmag? Error in Hmag (3)magstat.error;phot.mag;em.IR.HfloatnullableKsmag? K_s_ band (2.16 micron) magnitude (3)magphot.mag;em.IR.Kfloatnullablee_Ksmag? Error in Ksmag (3)magstat.error;phot.mag;em.IR.KfloatnullableF3.6? Spitzer/IRAC 3.6 micron flux densitymJyphot.mag;em.IR.3-4umfloatnullablee_F3.6? Uncertainty in F3.6mJystat.errorfloatnullablel_F4.5Limit flag on F4.5meta.code.errorcharF4.5? Spitzer/IRAC 4.5 micron flux densitymJyphot.mag;em.IR.4-8umfloatnullablee_F4.5? Uncertainty in F4.5mJystat.errorfloatnullableF5.8? Spitzer/IRAC 5.8 micron flux densitymJyphot.flux.density;em.IR.4-8umdoublenullablee_F5.8? Uncertainty in F5.8mJystat.errorfloatnullableF8.0? Spitzer/IRAC 8.0 micron flux densitymJyphot.flux.density;em.IR.8-15umfloatnullablee_F8.0? Uncertainty in F8.0mJystat.errorfloatnullableF24? Spitzer/MIPS 24 micron flux densitymJyphot.flux.density;em.IR.15-30umdoublenullablee_F24? Uncertainty in F24mJystat.errorfloatnullablel_F70Limit flag on F70um (2)meta.code.errorcharF70? Spitzer/MIPS 70 micron flux density (2)mJyphot.flux.density;em.IR.30-60umfloatnullablee_F70? Uncertainty in F70um (2)mJystat.errorfloatnullableF160? Spitzer/MIPS 160 micron flux densitymJyphot.flux.density;em.mm.1500-3000GHzfloatnullablee_F160? Uncertainty in F160mJystat.errorfloatnullableF12? IRAS Point Source Catalog 12 micron flux densitymJyphot.flux.density;em.IR.8-15umdoublenullablee_F12? Uncertainty in F12mJystat.errorfloatnullablel_F25Limit flag on F25meta.code.errorcharF25? IRAS Point Source Catalog 25 micron flux densitymJyphot.flux.density;em.IR.15-30umdoublenullablee_F25? Uncertainty in F25mJystat.errorfloatnullablel_F60Limit flag on F60meta.code.errorcharF60? IRAS Point Source Catalog 60 micron flux densitymJyphot.flux.density;em.IR.30-60umdoublenullablee_F60? Uncertainty in F60mJystat.errorfloatnullablel_F100Limit flag on F100meta.code.errorcharF100? IRAS Point Source Catalog 100 micron flux densitymJyphot.flux.density;em.IR.60-100umdoublenullablee_F100? Uncertainty in F100mJystat.errorfloatnullablel_F1300Limit flag on F1300meta.code.errorcharF1300? 1300um (1.3mm) continuum flux density (1)mJyphot.flux.density;em.mm.100-200GHzfloatnullablee_F1300? Uncertainty in F1300mJystat.errorfloatnullabler_F1300[a] F1300 from Reipurth et al. (1)meta.ref;pos.framechar