J/AJ/163/26ivo://CDS.VizieR/J/AJ/163/26doi:10.26093/cds/vizier.51630026CDSLuhman K.L.Esplin T.L.2026-07-28T11:04:25Z2025-05-05T13:59:27ZCDS support team

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

cds-question@unistra.frstar-forming-regionsmolecular-cloudsinfrared-astronomyspectroscopyvisible-astronomystellar-spectral-typesline-intensitiesyoung-stellar-objectsWe present spectroscopy of 285 previously identified candidate members of populations in the Sco-Cen complex, primarily Ophiuchus, Upper Sco, SAACand Lupus. The spectra are used to measure spectral types and diagnostics of youth. We find that 269 candidates exhibit signatures of youth in our spectra or previous data, which is consistent with their membership in Sco-Cen. We have constructed compilations of candidate members of Ophiuchus, Upper Sco, and Lupus that have spectral classifications and evidence of youth, which contain a total of 2274 objects. In addition, we have used spectra from previous studies to classify three sources in Ophiuchus that have been proposed to be protostellar brown dwarfs: ISO Oph 70, 200, and 203. We measure spectral types of early M from those data, which are earlier than expected for young brown dwarfs based on evolutionary models (>~M6.5) and instead are indicative of stellar masses (~0.6M_{sun}_).2022AJ....163...26Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/163/26CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/117 : MK Classifications of Close Visual Binaries (Corbally, 1984)III/135 : Henry Draper Catalogue and Extension (Cannon+ 1918-1924; ADC 1989)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)II/319 : UKIDSS-DR9 LAS, GCS and DXS Surveys (Lawrence+ 2012)II/359 : The VISTA Hemisphere Survey (VHS) catalog DR4.1 (McMahon+, 2013)I/350 : Gaia EDR3 (Gaia Collaboration, 2020)II/367 : The VISTA Hemisphere Survey (VHS) catalog DR5 (McMahon+, 2020)I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)J/AJ/113/1733 : Orion Nebula Cluster population (Hillenbrand 1997)J/A+AS/123/329 : New weak-line T Tauri stars in Lupus (Krautter+ 1997)J/A+A/325/647 : High-resolution spectra south of Taurus (Neuhaeuser+ 1997)J/A+A/337/403 : Low-mass stars evolutionary models (Baraffe+ 1998)J/A+A/333/619 : Upper Sco OB association Lithium survey (Preibisch+ 1998)J/AJ/117/354 : OB associations from Hipparcos (de Zeeuw+, 1999)J/AJ/120/479 : Low-mass stars in the Upper Sco association (Ardila+, 2000)J/A+A/372/173 : ISOCAM obs. of the rho Ophiuchi cloud (Bontemps+, 2001)J/A+A/378/116 : Classif. and vsini of Vega-type and PMS stars (Mora+, 2001)J/AJ/121/1040 : PMS members of upper Scorpius OB assoc. (Preibisch+, 2001)J/AJ/124/404 : Upper Sco OB assoc. Lithium survey. II. (Preibisch, 2002)J/AJ/126/2421 : 2MASS-Selected sample of ultracool dwarfs (Cruz+, 2003)J/A+A/402/963 : Stephenson H{alpha} stars (Maheswar+, 2003)J/AJ/126/2971 : UBVRI photometry of 131 Herbig Ae/Be (Vieira+, 2003)J/other/ARA+A/42.685 : Young stars near the Sun (Zuckerman+, 2004)J/AJ/130/1733 : Optical spectroscopy of {rho} Oph stars (Wilking+, 2005)J/ApJ/651/L49 : Upper Sco OB association IRAC obs. (Carpenter+, 2006)J/MNRAS/373/95 : ZYJHK survey of Upper Sco association (Lodieu+, 2006)J/AJ/132/866 : New M dwarfs in solar neighborhood (Riaz+, 2006)J/AJ/131/3016 : Low-mass objects in Upper Scorpius (Slesnick+, 2006)J/A+A/460/695 : Associations Containing Young stars (Torres+, 2006)J/ApJS/179/249 : Low-luminosity embedded protostar population (Dunham+, 2008)J/AJ/136/1290 : Ultracool dwarfs from the 2MASS (Reid+, 2008)J/ApJ/688/377 : Low-mass objects in Upper Scorpius. II. (Slesnick+, 2008)J/ApJ/703/1511 : Wide binaries in Taurus and Upper Sco (Kraus+, 2009)J/A+A/515/A75 : Low-mass pop. in {rho} Oph cloud (Alves de Oliveira+, 2010)J/ApJ/712/925 : Transition circumstellar disks in Ophiuchus (Cieza+, 2010)J/ApJS/190/100 : NIR proper motion survey using 2MASS (Kirkpatrick+, 2010)J/AJ/142/140 : Opt. spectroscopy of {rho} Oph stars. II. (Erickson+, 2011)J/A+A/527/A24 : Spectra of low-mass stars in Upper Sco (Lodieu+, 2011)J/MNRAS/416/3108 : Membership of Sco OB2 moving group (Rizzuto+, 2011)J/ApJ/744/134 : SONYC new brown dwarfs in {rho} Oph (Muzic+, 2012)J/ApJ/746/154 : Improved kinematic plx for Sco-Cen members (Pecaut+, 2012)J/ApJ/749/79 : Transition disks. II. Southern MoC (Romero+, 2012)J/A+A/551/A107 : X-shooter sp. of 24 young stellar objects (Manara+, 2013)J/A+A/561/A2 : 36 accreting YSOs emission lines (Alcala+, 2014)J/A+A/562/A127 : NIR integral field sp. of 15 M-L dwarfs (Bonnefoy+, 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/ApJ/810/158 : M,L,T dwarfs fundamental param. and SEDs (Filippazzo+, 2015)J/A+A/579/A66 : Accretion in {rho}-Ophiucus (Manara+, 2015)J/MNRAS/448/2737 : New PMS K/M Stars in Upper Scorpius (Rizzuto+, 2015)J/ApJS/225/10 : Kinematic analysis of M7-L8 dwarfs (Faherty+, 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/153/46 : Spectroscopy of candidate members in Taurus (Luhman+, 2017)J/AJ/156/75 : Circumstellar disks in the Upper Sco assoc. (Esplin+, 2018)J/ApJ/868/32 : A large moving group within the LCC assoc. (Goldman+, 2018)J/AJ/156/76 : New young stars & brown dwarfs in Upper Sco (Luhman+, 2018)J/A+A/626/A80 : Rho Oph cand. members from Gaia DR2 (Canovas+, 2019)J/A+A/623/A112 : The Sco OB2 population from Gaia DR2 data (Damiani+, 2019)J/AJ/160/44 : Upper Scorpius spectroscopy and photometry (Luhman+, 2020)J/A+A/643/A148 : Lupus DANCe. Census & 6D with Gaia-DR2 (Galli+, 2020)J/AJ/160/186 : Gaia survey of stars assoc. with Lupus Clouds (Luhman, 2020)J/AJ/160/44 : Upper Scorpius spectroscopy and photometry (Luhman+, 2020)J/A+A/642/A86 : Circumstellar disks in Lupus complex (Teixeira+, 2020)J/A+A/652/A2 : rho Oph region revisited with Gaia EDR3 (Grasser+, 2021)J/ApJ/917/23 : SPYGLASS. I. Mapping young stellar structures (Kerr+, 2021)J/MNRAS/503/2265 : VISTA and Subaru/HSC obs. of Upper Scorpius (Lodieu+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/163/26https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/163/26http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/163/26https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/163/26https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/163/26http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/163/26GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/163/26/table2 (Spectroscopic data for candidate members of Sco-Cen)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/163/26/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/163/26/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/163/26/table2?GETtext/xml+votable180.050000true229.6835894-37.71472610.005555555555555556Cone search capability for table J/AJ/163/26/table3 (Candidate members of Ophiuchus and Upper Sco with spectral classifications at l=343{deg}-360{deg} and b=10{deg}-30{deg})https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/163/26/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/163/26/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/163/26/table3?GETtext/xml+votable180.050000true233.0430428-21.96682310.005555555555555556Cone search capability for table J/AJ/163/26/table4 (Candidate members of Lupus clouds 1-4 with spectral classifications)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/163/26/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/163/26/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/163/26/table4?GETtext/xml+votable180.050000true234.7492225-32.96590580.0055555555555555564/2684 2686 2769 2772 5/10733 10750 11075 11085 11092 11094 11096-11097 11100 6/29320 29352 30723 30732 42582-42583 42595-42596 42598-42599 42609 42611-42612 42614 42617 42683 42704-42705 42714 42725 42727 42736-42737 42744 42754 42784 42851 42854 42857 42862-42863 42901 42903 42906-42909 42911 42913 42918 42924 42929-42931 42938-42939 42941-42943 42962 42967-42968 42970-42972 42992 42994-42995 42998 43004 43006 44289 44293 44323 44325 44337-44338 44348-44350 44372-44374 44380-44382 44392 44396-44398 44404 44408-44410 44421 44433 44481 44485https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/163/26?format=asciiOpticalInfrareddefaultJ/AJ/163/26/table2Spectroscopic data for candidate members of Sco-CenrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaia? Gaia EDR3 source namemeta.id;meta.mainnullableUGCSUKIDSS Galactic Clusters Survey source namemeta.id.crosschar2MASS2MASS Point Source Catalog source namemeta.id.crosscharNameOther source namemeta.idcharRAdeg[229.68/249.12] Right ascension (ICRS)degpos.eq.raDEdeg[-42.72/-18] Declination (ICRS)degpos.eq.decRef-PosReference for right ascension and declination; note that various Epoch are used (1)pos.eq;meta.bibcharSpTSpectral type from this work (2)src.spTypecharf_EWLi? Flag for EWLimeta.codecharEWLi[200/900]? Equivalent width of Li (3)0.1pmspect.line.eqWidthintnullableEWNa[1700/4300]? Equivalent width of Na (3)0.1pmspect.line.eqWidthintnullableInstInstrument used for spectral classificationmeta.id;instrcharDate1Date of spectroscopytime.epochnullableDate2Second date of spectroscopy if anytime.epochnullableSimbadNameSimbad column added by the CDSmeta.idcharnullableYoungIs the candidate young based on spectroscopy or other diagnostics?meta.codecharKin? Kinematic population (G1)meta.codecharPos? Position in Sco-Cen (G2)meta.codecharFileName1Name of the IR spectrum FITS file in subdirectory "fig2"; column added by CDSmeta.id;meta.fitscharFITSIRDownload the optical spectrum FITS filemeta.ref.urlcharSpIRInteractive infrared spectrum plotmeta.ref.urlcharFileName2Name of the optical spectrum FITS file in subdirectory "fig1"; column added by CDSmeta.id;meta.fitscharFITSOptDownload the optical spectrum FITS filemeta.ref.urlcharSpOptInteractive optical spectrum plotmeta.ref.urlcharL20Display data from Luhman+ 2020, J/AJ/160/44meta.ref.urlintnullable_RAPositions from SIMBAD or from Gaia (converted in J2000 at Ep=2000) or from UGCS names (right ascension part)degpos.eq.ra;meta.main_DEPositions from SIMBAD or from Gaia (converted in J2000 at Ep=2000) or from UGCS names (declination part)degpos.eq.dec;meta.mainJ/AJ/163/26/table3Candidate members of Ophiuchus and Upper Sco with spectral classifications at l=343{deg}-360{deg} and b=10{deg}-30{deg}2MASS2MASS Point Source Catalog source namemeta.id.crosscharNameOther source namemeta.idcharRAdeg[233/252.4] Right ascension (ICRS)degpos.eq.raDEdeg[-31.8/-16.2] Declination (ICRS)degpos.eq.decRef-PosReference for right ascension and declination; note that various Epoch are used (1)pos.eq;meta.bibcharSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaia? Gaia EDR3 source namemeta.id;meta.mainnullableUGCSUKIDSS Galactic Clusters Survey source namemeta.id.crosscharSpTypeSpectral typesrc.spTypecharr_SpTypeSpectral type reference (see refs.dat file)src.spType;meta.bibcharSpTAdopted spectral typesrc.spTypecharKinKinematic population (G1)meta.codecharPosPosition in Sco-Cen (G2)meta.codecharE18Display data from Esplin+ 2018, J/AJ/156/75meta.ref.urlintnullableL20Display data from Luhman+ 2020, J/AJ/160/44meta.ref.urlintnullable_RAPositions from SIMBAD or from Gaia (converted in J2000 at Ep=2000) or from UGCS names (right ascension part)degpos.eq.ra;meta.main_DEPositions from SIMBAD or from Gaia (converted in J2000 at Ep=2000) or from UGCS names (declination part)degpos.eq.dec;meta.mainJ/AJ/163/26/table4Candidate members of Lupus clouds 1-4 with spectral classificationsSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaia? Gaia EDR3 source namemeta.id;meta.mainnullable2MASS2MASS Point Source Catalog source namemeta.id.crosscharNameOther source namemeta.idcharRAdeg[234.7/243.5] Right ascension (ICRS) (1)degpos.eq.raDEdeg[-42.72/-32.96] Declination (ICRS) (1)degpos.eq.decSpTypeSpectral typesrc.spTypecharn_SpTypeSpectral type reference (2)meta.notecharSpTAdopted spectral typesrc.spTypecharKinKinematic population (G1)src.samplecharL20Display data from Luhman 2020, J/AJ/160/186meta.ref.urlintnullable_RAPositions from SIMBAD or from Gaia (converted in J2000 at Ep=2000) (right ascension part)degpos.eq.ra;meta.main_DEPositions from SIMBAD or from Gaia (converted in J2000 at Ep=2000) (declination part)degpos.eq.dec;meta.mainJ/AJ/163/26/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference codemeta.noteintAuthFirst author's name(s)meta.bib.authorcharBibCodeADS/Simbad Bibcode of the reference if anymeta.bib.bibcodecharCommCommentmeta.notechar