J/AJ/160/186ivo://CDS.VizieR/J/AJ/160/186doi:10.26093/cds/vizier.51600186CDSLuhman K.L.2022-09-30T06:38:12Z2020-12-03T12:12:13ZCDS support team

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

cds-question@unistra.frsurveysbrown-dwarfsphotometryvisible-astronomyinfrared-astronomytrigonometric-parallaxproper-motionsradial-velocityI have used high-precision photometry and astrometry from the second data release of the Gaia mission to perform a survey for young stars associated with the Lupus clouds, which have distances of ~160pc and reside within the Scorpius-Centaurus (Sco-Cen) OB association. The Gaia data have made it possible to distinguish Lupus members from most of the stars in other groups in Sco-Cen that overlap with the Lupus clouds, which have contaminated previous surveys. The new catalog of candidate Lupus members should be complete for spectral types earlier than M7 at AK<0.2 within fields encompassing clouds 1-4. I have used that catalog to characterize various aspects of the Lupus stellar population. For instance, the sequence of low- mass stars in Lupus is ~0.4mag brighter than the sequence for Upper Sco, which implies an age of ~6Myr based an adopted age of 10-12Myr for Upper Sco and the change in luminosity with age predicted by evolutionary models. I also find that the initial mass function in Lupus is similar to that in other nearby star-forming regions based on a comparison of their distributions of spectral types.2020AJ....160..186Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/160/186CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/182 : HDE Charts: positions, proper motions (Nesterov+ 1995)II/332 : c2d Spitzer final data release (DR4) (Evans+, 2003)II/359 : The VISTA Hemisphere Survey (VHS) catalog DR4.1 (McMahon+, 2013)I/337 : Gaia DR1 (Gaia Collaboration, 2016)I/347 : Distances to 1.33 billion stars in Gaia DR2 (Bailer-Jones+, 2018)I/345 : Gaia DR2 (Gaia Collaboration, 2018)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)J/A+AS/123/329 : New weak-line T Tauri stars in Lupus (Krautter+ 1997)J/A+A/337/403 : Low-mass stars evolutionary models (Baraffe+ 1998)J/AJ/117/354 : OB associations from Hipparcos (de Zeeuw+, 1999)J/A+A/356/541 : T Tauri stars in the Sco-Cen OB association (Koehler+, 2000)J/AJ/124/1670 : Post-T Tauri Stars in Sco-Cen Association (Mamajek+, 2002)J/ApJ/620/1010 : Spitzer 24{mu}m photometry of A dwarfs (Rieke+, 2005)J/A+A/460/695 : Search for Associations Containing Young stars (Torres+,2006)J/ApJ/667/308 : Weak-line T Tauri in Spitzer c2d Survey. II. (Cieza+, 2007)J/ApJ/662/1067 : Sptizer observations of sigma Orionis (Hernandez+, 2007)J/ApJS/177/551 : Spitzer c2d survey of Lupus dark clouds (Merin+, 2008)J/A+A/500/1045 : Cool stars and brown dwarfs in Lupus clouds (Comeron+, 2009)J/ApJS/186/111 : Spitzer observations of Taurus members (Luhman+, 2010)J/ApJ/724/835 : The Spitzer c2d survey of WTTSs. III. (Wahhaj+, 2010)J/ApJ/758/31 : IR photometry for members of Upper Sco (Luhman+, 2012)J/ApJ/746/154 : Improved kinematic plxs for Sco-Cen members (Pecaut+, 2012)J/ApJ/749/79 : Transition disks. II. Southern MoC (Romero+, 2012)J/A+A/551/A107 : X-shooter spectra of 24 young stellar objects (Manara+, 2013)J/A+A/561/A2 : 36 accreting YSOs emission lines (Alcala+, 2014)J/ApJ/784/126 : IR photometry of all known members in Taurus (Esplin+, 2014)J/ApJ/786/97 : Photospheric properties of T Tauri stars (Herczeg+, 2014)J/ApJ/785/159 : SONYC census of substellar objects in Lupus 3 (Muzic+, 2014)J/MNRAS/454/593 : Young moving groups in solar neighbourhood (Bell+, 2015)J/A+A/585/A38 : All-sky extinction maps (Juvela+, 2016)J/MNRAS/461/794 : Scorpius-Centaurus K-Type Stars (Pecaut+, 2016)J/A+A/600/A20 : Lupus YSOs X-shooter spectroscopy (Alcala+, 2017)J/AJ/154/256 : VLM stars and BDs in Upper Sco using Gaia DR1 (Cook+, 2017)J/AJ/154/134 : Planetary-mass brown dwarfs in the Taurus SFR (Esplin+, 2017)J/A+A/602/A33 : X-Shooter spectroscopy of YSOs in Lupus (Frasca+, 2017)J/A+A/619/A52 : Dense cores and YSOs in Lupus complex (Benedettini+, 2018)J/ApJ/867/151 : YSOs in the Gould Belt regions with Gaia-DR2 (Dzib+, 2018)J/AJ/156/75 : Circumstellar disks in Upper Sco association (Esplin+, 2018)J/ApJ/868/32 : A large moving group within LCC association (Goldman+, 2018)J/AJ/156/271 : The stellar membership of the Taurus SFR (Luhman, 2018)J/AJ/156/76 : New young stars and brown dwarfs in Upper Sco (Luhman+, 2018)J/A+A/618/A12 : Gaia DR1 Upper Scorpius new memb. candid. (Wilkinson+, 2018)J/A+A/626/A80 : Census of Rho Oph candid. memb. from Gaia DR2 (Canovas+,2019)J/A+A/623/A112 : The Sco OB2 population from Gaia DR2 data (Damiani+, 2019)J/AJ/158/54 : New Taurus memb. from stellar to planet. masse (Esplin+,2019)J/AJ/159/282 : Membership in Ophiuchus & Upper Scorpius (Esplin+, 2020)J/AJ/160/44 : Upper Scorpius spectroscopy and photometry (Luhman+, 2020)J/AJ/159/200 : Young stellar objects in Lupus star-forming (Melton, 2020)J/A+A/633/A51 : Distances to molecular clouds in SFR (Zucker+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/160/186https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/160/186http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/160/186https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/160/186https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/160/186http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/160/186GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/160/186/table1 (Candidate members of Lupus at l=335-345deg and b=5-19deg that have Gaia kinematics)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/160/186/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/160/186/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/160/186/table1?GETtext/xml+votable180.050000true231.54136389-35.016921940.005555555555555556Cone search capability for table J/AJ/160/186/table2 (On-cloud candidate members of Lupus that lack Gaia kinematics)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/160/186/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/160/186/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/160/186/table2?GETtext/xml+votable180.050000true235.75905389-34.152270.0055555555555555565/10649 10652 6/42571-42572 42575 42586 42593 42595 42604-42605 42613-42615 42617-42620 42688 42704-42705 42707-42710 42713-42714 42717 42723 42725 42727-42728 42731 42733 42736-42738 42756-42757 42760 42764 42766 42770 42784 42787 42790 42794 42797-42799 42881 42885-42886 42888 42892 42912 429218.157980699529898e-21 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/160/186?format=asciiOpticalInfrareddefaultJ/AJ/160/186/table1Candidate members of Lupus at l=335-345deg and b=5-19deg that have Gaia kinematicsSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintExc4.5? Excess present in [4.5]?phot.color.excesscharExc8.0? Excess present in [8.0]?phot.color.excesscharExc24? Excess present in [24]?phot.color.excesscharDiskType? Disk Typesrc.classcharOnCloudNear Lupus clouds 1-4? (5)meta.codechar2MASS? 2MASS Point Source Catalog source namemeta.id.crosscharGaiaGaia DR2 source namemeta.id;meta.mainWISEA? AllWISE Source Catalog source namemeta.id.crosscharOName? Other source namemeta.idcharRAJ2000[231/250] Right Ascension, Gaia DR2 (J2000)degpos.eq.ra;meta.mainDEJ2000[-44/-30] Declination, (J2000)degpos.eq.dec;meta.mainSpType? Spectral typesrc.spTypecharr_SpType? Spectral type reference (1)meta.ref;pos.framecharpmRA[-21/-6]? Proper motion in right ascension, Gaia DR2mas/yrpos.pm;pos.eq.rafloatnullablee_pmRA[0.05/3.8]? Error in pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatnullablepmDE[-29/-19]? Proper motion in declination, Gaia DR2mas/yrpos.pm;pos.eq.decfloatnullablee_pmDE[0.03/2.5]? Error in pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatnullableplx[5.15/7.89]? Parallax from Gaia DR2maspos.parallax.trigfloatnullablee_plx[0.03/2.5]? Error in plxmasstat.error;pos.parallaxfloatnullableRVel[-4.3/16]? Radial velocitykm/sphys.veloc;pos.heliocentricfloatnullablee_RVel[0.27/3.9]? Error in RVelkm/sstat.error;spect.dopplerVelocfloatnullabler_RVel[1/7]? Radial velocity reference (2)meta.ref;pos.frameintnullableU[-10.2/9.5]? U component of space velocitykm/sphys.veloc;pos.cartesian.xfloatnullablee_U[0.26/3.8]? Error in Ukm/sstat.error;pos.cartesian.xfloatnullableV[-23.1/-14.1]? V component of space velocitykm/sphys.veloc;pos.cartesian.yfloatnullablee_V[0.15/2]? Error in Vkm/sstat.error;pos.cartesian.yfloatnullableW[-10.1/-3.7]? W component of space velocitykm/sphys.veloc;pos.cartesian.zfloatnullablee_W[0.1/1.2]? Error in Wkm/sstat.error;pos.cartesian.zfloatnullableGmag[7.33/20.5] G magnitude from Gaia DR2magphot.mag;em.optfloate_Gmag[0.001/0.03] Error in Gmagmagstat.error;phot.magfloatGBPmag[7.42/21.53]? GBP magnitude from Gaia DR2magphot.mag;em.opt.Bfloatnullablee_GBPmag[0.002/0.24]? Error in GBPmagmagstat.error;phot.magfloatnullableGRPmag[7.17/18.64]? GRP magnitude from Gaia DR2magphot.mag;em.opt.Rfloatnullablee_GRPmag[0.001/0.08]? Error in GRPmagmagstat.error;phot.magfloatnullableRUWE[0.85/11] Renormalized unit weight errorstat.errorfloatJmag[5.91/15.3]? J magnitudemagphot.mag;em.IR.Jfloatnullablee_Jmag[0.01/0.07]? Error in Jmagmagstat.error;phot.magfloatnullableHmag[5.22/14.1]? H magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag[0.02/0.16]? Error in Hmagmagstat.error;phot.magfloatnullableKsmag[4.39/13.9]? Ks magnitudemagphot.mag;em.IR.Kfloatnullablee_Ksmag[0.01/0.09]? Error in Ksmagmagstat.error;phot.magfloatnullabler_JHK? JHKs reference (3)meta.ref;pos.framecharW1mag[4.28/12.87]? WISE W1 magnitudemagphot.mag;em.IR.3-4umfloatnullablee_W1mag[0.02/0.27]? Error in W1magmagstat.error;phot.magfloatnullablef_W1mag? Flag on W1mag (4)meta.codecharW2mag[6.44/12.65]? WISE W2 magnitudemagphot.mag;em.IR.4-8umfloatnullablee_W2mag[0.02/0.06]? Error in W2magmagstat.error;phot.magfloatnullablef_W2mag? Flag on W2mag (4)meta.codecharW3mag[1.28/11.76]? WISE W3 magnitudemagphot.flux.density;em.IR.8-15umfloatnullablee_W3mag[0.01/0.28]? Error in W3magmagstat.error;phot.magfloatnullablef_W3mag? Flag on W3mag (4)meta.codecharW4mag[-0.79/8.31]? WISE W4 magnitudemagphot.flux.density;em.IR.15-30umfloatnullablee_W4mag[0.01/0.28]? Error in W4magmagstat.error;phot.magfloatnullablef_W4mag? Flag on W4mag (4)meta.codecharExcW2? Excess present in W2?phot.color.excesscharExcW3? Excess present in W3?phot.color.excesscharExcW4? Excess present in W4?phot.color.excesscharJ/AJ/160/186/table2On-cloud candidate members of Lupus that lack Gaia kinematicsSimbadNameSimbad column added by the CDSmeta.idcharnullableRAJ2000[235/243] Right Ascension (J2000) (1)degpos.eq.ra;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaia? Gaia DR2 source namemeta.id;meta.mainnullableDiskType? Disk Typesrc.classchar2MASS? 2MASS Point Source Catalog source namemeta.id.crosscharWISEA? AllWISE Source Catalog source namemeta.id.crosscharOName? Other source namemeta.idcharDEJ2000[-43/-34] Declination (J2000) (1)degpos.eq.dec;meta.mainSpType? Spectral typesrc.spTypecharr_SpType? Spectral type reference (2)meta.ref;pos.framecharGmag[11.78/19.05]? G magnitude from Gaia DR2magphot.mag;em.optfloatnullablee_Gmag[0.001/0.009]? Error in Gmagmagstat.error;phot.magfloatnullableGBPmag[12.58/21.01]? GBP magnitude from Gaia DR2magphot.mag;em.opt.Bfloatnullablee_GBPmag[0.003/0.17]? Error in GBPmagmagstat.error;phot.magfloatnullableGRPmag[10.77/17.45]? GRP magnitude from Gaia DR2magphot.mag;em.opt.Rfloatnullablee_GRPmag[0.001/0.08]? Error in GRPmagmagstat.error;phot.magfloatnullableRUWE[4.59/67.74]? renormalized unit weight errorstat.errorfloatnullableJmag[9.22/17.54]? J magnitudemagphot.mag;em.IR.Jfloatnullablee_Jmag[0.02/0.14]? Error in Jmagmagstat.error;phot.magfloatnullableHmag[8.1/16.16]? H magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag[0.02/0.1]? Error in Hmagmagstat.error;phot.magfloatnullableKsmag[7.43/17.31]? Ks magnitudemagphot.mag;em.IR.Kfloatnullablee_Ksmag[0.01/0.11]? Error in Ksmagmagstat.error;phot.magfloatnullabler_JHK? JHKs reference (3)meta.ref;pos.framecharW1mag[6.21/15.04]? WISE W1 magnitudemagphot.mag;em.IR.3-4umfloatnullablee_W1mag[0.02/0.07]? Error in W1magmagstat.error;phot.magfloatnullablef_W1mag? Flag on W1mag (4)meta.codecharW2mag[8.22/13.84]? WISE W2 magnitudemagphot.mag;em.IR.4-8umfloatnullablee_W2mag[0.02/0.04]? Error in W2magmagstat.error;phot.magfloatnullablef_W2mag? Flag on W2mag (4)meta.codecharW3mag[4.06/11.38]? WISE W3 magnitudemagphot.flux.density;em.IR.8-15umfloatnullablee_W3mag[0.01/0.25]? Error in W3magmagstat.error;phot.magfloatnullablef_W3mag? Flag on W3mag (4)meta.codecharW4mag[1.94/8.37]? WISE W4 magnitudemagphot.flux.density;em.IR.15-30umfloatnullablee_W4mag[0.01/0.3]? Error in W4magmagstat.error;phot.magfloatnullablef_W4mag? Flag on W4mag (4)meta.codecharExcW2? Excess present in W2?phot.color.excesscharExcW3? Excess present in W3?phot.color.excesscharExcW4? Excess present in W4?phot.color.excesscharExc4.5? Excess present in [4.5]?phot.color.excesscharExc8.0? Excess present in [8.0]?phot.color.excesscharExc24? Excess present in [24]?phot.color.excesschar