J/AJ/147/85ivo://CDS.VizieR/J/AJ/147/85doi:10.26093/cds/vizier.51470085CDSRiedel A.R.Finch C.T.Henry T.J.Subasavage J.P.Jao W.-C.Malo L.,Rodriguez D.R.White R.J.Gies D.R.Dieterich S.B.Winters J.G.,Davison C.L.Nelan E.P.Blunt S.C.Cruz K.L.Rice E.L.Ianna P.A.2024-06-05T17:19:01Z2015-03-09T07:18:58ZCDS support team

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

cds-question@unistra.frstellar-associationsdwarf-starsm-starsinfrared-photometryvisible-astronomyphotometrystellar-spectral-typestrigonometric-parallaxproper-motionsradial-velocitystellar-distanceastrometrygalaxy-kinematicsline-intensitiesstellar-agesWe present basic observational data and association membership analysis for 45 young and active low-mass stellar systems from the ongoing Research Consortium On Nearby Stars photometry and astrometry program at the Cerro Tololo Inter-American Observatory. Most of these systems have saturated X-ray emission (log(L_X_/L_bol_)>-3.5) based on X-ray fluxes from the ROSAT All-Sky Survey, and many are significantly more luminous than main-sequence stars of comparable color. We present parallaxes and proper motions, Johnson-Kron-Cousins VRI photometry, and multiplicity observations from the CTIOPI program on the CTIO 0.9m telescope. To this we add low-resolution optical spectroscopy and line measurements from the CTIO 1.5m telescope, and interferometric binary measurements from the Hubble Space Telescope Fine Guidance Sensors. We also incorporate data from published sources: JHK_S_ photometry from the Two Micron All Sky Survey point source catalog, X-ray data from the ROSAT All-Sky Survey, and radial velocities from literature sources. Within the sample of 45 systems, we identify 21 candidate low-mass pre-main-sequence members of nearby associations, including members of {beta} Pictoris, TW Hydrae, Argus, AB Doradus, two ambiguous {approx}30Myr old systems, and one object that may be a member of the Ursa Major moving group. Of the 21 candidate young systems, 14 are newly identified as a result of this work, and six of those are within 25pc of the Sun.2014AJ....147...85Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/147/85CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)IX/29 : ROSAT All-Sky Survey Faint Source Catalog (Voges+ 2000)IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999)III/198 : Palomar/MSU nearby star spectroscopic survey (Hawley+ 1997)I/238 : Yale Trigonometric Parallaxes, Fourth Edition (van Altena+ 1995)J/AJ/147/94 : Solar neighborhood. XXXII. L and M dwarfs (Dieterich+, 2014)J/ApJ/762/88 : Young stellar kinematic group candidate members (Malo+, 2013)J/AJ/144/64 : Solar neighborhood. XXVIII. Substellar companionsJ/AJ/143/134 : Candidate members of B Pic /AB Dor groups (McCarthy+, 2012)J/AJ/143/80 : Low-mass member candidates of B Pic & AB Dor (Schlieder+, 2012)J/ApJ/758/56 : Young M dwarfs within 25pc. II. Kinematics (Shkolnik+, 2012)J/AJ/142/92 : New proper motion stars with pm>=0.18''/yr (Boyd+, 2011)J/A+A/531/A92 : Deep all-sky census of the Hyades (Roeser+, 2011)J/AJ/142/10 : New proper motion stars 0.40''/yr>pm>=0.18''/yr (Boyd+, 2011)J/AJ/141/21 : CCD distance estimates of SCR targets (Winters+, 2011)J/AJ/140/119 : BPic and AB Dor moving groups members (Schlieder+, 2010)J/A+A/499/129 : Old MS stars in young moving groups (Lopez-Santiago+, 2009)J/ApJ/699/649 : Young M dwarfs within 25pc. I. (Shkolnik+, 2009)J/AJ/134/252 : New nearby white dwarf systems (Subasavage+, 2007)J/AJ/133/2898 : New proper-motion stars (-90<DE < -47) (Finch+, 2007)J/AJ/132/866 : New M dwarfs in solar neighborhood (Riaz+, 2006)J/A+A/460/695 : Search for Associations Containing Young stars (Torres+, 2006)J/AJ/130/1658 : New high proper motion stars (-47<DE< -00) (Subasavage+, 2005)J/AJ/129/413 : New high proper motion stars (-90<DE< -47) (Subasavage+, 2005)J/other/ARA+A/42.685 : Young stars near the Sun (Zuckerman+, 2004)J/AJ/123/3356 : PMSU nearby star spectroscopic survey. III. (Gizis+, 2002)http://www.astro.gsu.edu/~thenry/CTIOPI/index.htm : CTIOPIhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/147/85https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/147/85http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/147/85https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/147/85https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/147/85http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/147/85GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/147/85/stars (Photometry (table2) , and astrometry (table3) of the nearby M-stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/147/85/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/147/85/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/147/85/stars?GETtext/xml+votable180.050000true2.215791720.81886110.005555555555555556Cone search capability for table J/AJ/147/85/table4 (Data used to calculate UVWXYZ)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/147/85/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/147/85/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/147/85/table4?GETtext/xml+votable180.050000true2.2157833320.818850.0055555555555555566/1122 4158 10303 16455 16543 16993 17534 17813 18440 19777 19886 20507 20602 20618 21050 22739 23388 23443 23564 24580 24763 24797 29458 30011 31019 32015 33449 34266 34920 35154 35640 37041 37442 38797 43372 44001 44696 45960 47487 48263 48318 48648 48801 490568.650015785639275e-20 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/147/85?format=asciiOpticalInfrareddefaultJ/AJ/147/85/starsPhotometry (table2) , and astrometry (table3) of the nearby M-starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintf_Name[P] 'P' for previously CTIOPI published star (G1)meta.codecharm_NameComponent identificationmeta.code.multipcharONameOther namemeta.idcharVmag[10.36/19.95]? Johnson V band magnitude (1)magphot.mag;em.opt.Vfloatnullablee_Vmag? Error in Vmag (2)magstat.error;phot.magfloatnullableRmag[9.08/17.99]? Kron-Cousins R band magnitude (1)magphot.mag;em.opt.RfloatnullableSimbadNameSimbad column added by the CDSmeta.idcharnullableNmeta.notecharMmeta.ref.urlcharNameName of the star systemmeta.id;meta.maincharprimaryplxA[11.66/190.93]? Absolute trigonometric parallaxmaspos.parallax.trigfloatnullablee_plxA? Error in plxAmasstat.errorfloatnullablepm[11.2/769.1]? Proper motionmas/yrpos.pmfloatnullablee_pm? Error in pmmas/yrstat.errorfloatnullablee_Rmag? Error in Rmag (2)magstat.error;phot.magfloatnullableImag[7.4/15.92]? Kron-Cousins I band magnitude (1)magphot.mag;em.opt.Ifloatnullablee_Imag? Error in Imag (2)magstat.error;phot.magfloatnullableNp[2/5]? Number of photometric observationsmeta.numberintnullableFlt[VRI] Parallax filter (V, R, or I)pos.parallax;instr.filtercharsigmaThe {sigma} scatter total value in magnitude (3)magstat.stdevfloatNn[7/31] Number of rel. nightsmeta.numberintNf[31/181] Number of framesmeta.numberintJmag[5.81/13]? 2MASS J band magnitude (cat. II/246)magphot.mag;em.IR.Jfloatnullablee_Jmag? Error in Jmag (from cat. II/246)magstat.error;phot.magfloatnullableHmag[5.2/12.39]? 2MASS H band magnitude (cat. II/246)magphot.mag;em.IR.Hfloatnullablee_Hmag? Error in Hmag (from cat. II/246)magstat.error;phot.magfloatnullableKmag[4.9/11.95]? 2MASS Ks band magnitude (cat. II/246)magphot.mag;em.IR.Kfloatnullablee_Kmag? Error in K mag (from cat. II/246)magstat.error;phot.magfloatnullableSpTSpectral type (4)src.spTypecharf_SpT[J] Joint spectral types from unresolved multiplesmeta.codecharr_SpT? Reference for SpT; in refs.dat filemeta.ref;pos.frameintnullableDist[2.77/47.39]? Photometric distance (5)pcpos.distance;pos.heliocentricfloatnullablee_Dist[0.43/7.47]? Error in Distpcstat.errorfloatnullableNrel[12/12]? Number of relationsmeta.numberintnullableNoteNote (G2)meta.notecharRAJ2000Hour of Right Ascension (J2000) (6)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000) (6)pos.eq.dec;meta.mainFilt[VRI] Parallax filter (V, R, or I)pos.parallax;instr.filtercharNs[3/11]? Number of seasons observed (counts of observing semesters where a dataset was taken)meta.numberintnullablen_Ns[cs] Coverage (c=continuous, more than one night of data in all seasons; s=scattered)meta.notecharNu[41/181]? Total number of images used in reductionmeta.numberintnullableDate0[1999.62/2010.66]? Starting date of observation (first data point)yrtime.start;obsfloatnullableDate1[2003.86/2013.39]? Ending date of observation (last data point)yrtime.end;obsfloatnullableNy[2.04/13.32]? Number of years (from the first to last data point)yrtime.intervalfloatnullableNr[5/14]? Number of reference stars used to reduce the parallaxmeta.idintnullableplxR[10.5/189.43]? Relative trigonometric parallaxmaspos.parallax.trigfloatnullablee_plxR? Error in plxRmasstat.errorfloatnullableDelta[0.4/2.72]? Correction on relative parallax (7)mastime.intervalfloatnullablee_Delta? Error in Corrmasstat.error;pos.eq.decfloatnullablepmPA? Proper motion position angledegpos.pm;pos.posAngfloatnullablee_pmPA? Error in pmPAdegstat.errorfloatnullableVtan[1.6/68.4]? Tangential velocitykm/sphys.veloc.transversefloatnullableRef? Reference for previously published example; in refs.dat filemeta.ref;pos.frameintnullablenoteNote(s) (G2)meta.notecharOCatData from original or other catalogs where the star has already been identified (search in r=10arcsec)meta.ref.urlintnullable2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlcharJ/AJ/147/85/table4Data used to calculate UVWXYZrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the star systemmeta.id;meta.maincharprimarym_NameComponent identificationmeta.code.multipcharRAJ2000Hour of Right Ascension (J2000) (1)pos.eq.ra;meta.maine_RAJ2000Error in Right Ascension (J2000) (1)masstat.error;pos.eq.raintDEJ2000Degree of Declination (J2000) (1)pos.eq.dec;meta.maine_DEJ2000Error in Declination (J2000) (1)masstat.error;pos.eq.decintplxAbsolute trigonometric parallax {pi} (2)maspos.parallax.trigfloate_plxError in plxmasstat.error;pos.parallaxfloatr_plxReference for parallax; in refs.dat filemeta.ref;pos.framecharpmRAProper motion in Right Ascension ({mu}R.A.cos decl.)mas/yrpos.pm;pos.eq.rafloate_pmRAError in pmRAmas/yrstat.error;pos.pm;pos.eq.rafloat_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountpos.eq.raindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountpos.eq.decindexedpmDEProper motion in Declination ({mu}decl.)mas/yrpos.pm;pos.eq.decfloate_pmDEError in pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatr_pmDEReference for proper motion (pmRA and pmDE); in refs.dat filemeta.ref;pos.pm;pos.eq.decintHRV? Heliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloatnullablee_HRV? Error in HRVkm/sstat.errorfloatnullabler_HRV? Reference for HRV; in refs.dat filemeta.ref;pos.frameintnullableJ/AJ/147/85/table5Deblended magnitudes for isochronesNameName of the star systemmeta.id;meta.maincharprimaryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintm_NameComponent identificationmeta.code.multipcharVmagDeblended Johnson V band magnitudemagphot.mag;em.opt.VfloatImagDeblended Kron-Cousins I band magnitudemagphot.mag;em.opt.IfloatJmagDeblended 2MASS J band magnitudemagphot.mag;em.IR.JfloatKmagDeblended 2MASS Ks band magnitudemagphot.mag;em.IR.KfloatVMagDeblended absolute Johnson V band magnitudemagphys.magAbsfloatV-KDeblended (V-K) color indexmagphot.color;em.opt.V;em.IR.KfloatBandBand of known {Delta}mag used to deblend the photometry (K, R, V, or i') (1)instr.bandpasscharSBIndicates if the system was identified only as a spectroscopic binarymeta.codecharJ/AJ/147/85/table6Photometric and spectroscopic propertiesl_log(LX/Lbol)[<] Upper limit flag on log(LX/Lbol)meta.code.errorcharlog(LX/Lbol)[-5.55/-2.2]? Log of X-ray to bolometric luminosity ratio (1)phys.luminosity;arith.ratiofloatnullablef_logLX[<] Upper limit flag on logLXmeta.codecharlogLX[26.14/29.86]? X-ray luminosity (1)erg/sphys.luminosity;em.X-rayfloatnullableFltFilter (V, R, or I)meta.id;instr.filtercharNaI[1.08/1.35]? NaI indexmeta.code;spect.indexfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the star systemmeta.id;meta.maincharprimarym_NameComponent identificationmeta.code.multipcharVMagAbsolute Johnson V band magnitudemagphys.magAbsfloatV-KThe (V-K_s_) color indexmagphot.color;em.opt.V;em.IR.KfloatDmagPhotometric variability in Fltmagphot.mag;arith.difffloatEWHa? H{alpha} equivalent width; in {AA}0.1nmspect.line.eqWidthfloatnullableEWKI[0.5/5.6]? KI equivalent width; in {AA}0.1nmspect.line.eqWidthfloatnullableJ/AJ/147/85/table7Young star resultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the star systemmeta.id;meta.maincharprimarym_NameComponent identificationmeta.code.multipcharKAssoBest-matching association (nearby young association or Ursa Major moving group) from kinematic methodmeta.id.parentKStat[0.06/3.87]? Goodness-of-fit statistic {gamma} to determine how significant is the kinematic match (1)stat.fit.goodnessfloatnullableRV[-38.2/24.8]? Radial velocitykm/sphys.veloc;pos.heliocentricfloatnullablef_RV[a] RV is actually a best-fit RV from the kinematic fittingmeta.codecharBAssoBANYAN best-matching nearby young association (2)meta.id.parentBProb[51.9/99.9] Probability for the star to be a match for the BANYAN association%statfloatIRangeIsochrone rangemeta.id.parentGMatchMatch using gravity-sensitive lines (Old, Young)meta.notecharf_GMatch[N/A] Not analysedmeta.codecharl_Age[<>] Limit flag on Agemeta.code.error;time.agecharAge[1/7.5]? H{alpha} ageGyrtime.agefloatnullablef_Age[N/A] Not analysedmeta.codecharu_NYA[?] Uncertainty flag on NYAmeta.code.errorcharNYAName of the Nearby Young Association (Unknown=Unknown association) (3)meta.id.parentcharRefReferences; in refs.dat filemeta.refcharn_RefName of the association find in referencemeta.notecharJ/AJ/147/85/table8Nearby young associations (NYA)sVvelVelocity dispersion on Vvel {sigma}_V_ (3)km/sphys.veloc.dispersionfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the nearby association (1)meta.id;meta.mainf_NameReference for the data (2)meta.codecharUvelU space velocity componentkm/sphys.veloc;pos.cartesian.xfloatsUvelVelocity dispersion on Uvel {sigma}_U_ (3)km/sphys.veloc.dispersionfloatVvelV space velocity componentkm/sphys.veloc;pos.cartesian.yfloatWvelW space velocity componentkm/sphys.veloc;pos.cartesian.zfloatsWvelVelocity dispersion on Wvel {sigma}_W_ (3)km/sphys.veloc.dispersionfloatXpos? Minimum X space positionpcpos.distance;pos.cartesian.x;stat.minintnullableXPos? Maximum X space positionpcpos.distance;pos.cartesian.x;stat.maxintnullableYpos? Minimum Y space positionpcpos.distance;pos.cartesian.y;stat.minfloatnullableYPos? Maximum Y space positionpcpos.distance;pos.cartesian.y;stat.maxfloatnullableZpos? Minimum Z space positionpcpos.distance;pos.cartesian.z;stat.minfloatnullableZPos? Maximum Z space positionpcpos.distance;pos.cartesian.z;stat.maxfloatnullableAgeAgeMyrtime.ageintn_Age[ab] Origin of Age (4)meta.notecharJ/AJ/147/85/table9UVWXYZ kinematicsNameName of the star systemmeta.id;meta.maincharprimaryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintm_NameComponent identificationmeta.code.multipcharUvel? U space velocity component (1)km/sphys.veloc;pos.cartesian.xfloatnullablee_Uvel? Error in Uvelkm/sstat.errorfloatnullableVvel? V space velocity component (1)km/sphys.veloc;pos.cartesian.yfloatnullablee_Vvel? Error in Vvelkm/sstat.errorfloatnullableWvel? W space velocity component (1)km/sphys.veloc;pos.cartesian.zfloatnullablee_Wvel? Error in Wvelkm/sstat.errorfloatnullableXposX space position (1)pcpos.distance;pos.cartesian.xfloate_XposError in Xpospcstat.error;pos.cartesian.xfloatYposY space position (1)pcpos.distance;pos.cartesian.yfloate_YposError in Ypospcstat.error;pos.cartesian.yfloatZposZ space position (1)pcpos.distance;pos.cartesian.zfloate_ZposError in Zpospcstat.errorfloatJ/AJ/147/85/table10Multiple star parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the star systemmeta.id;meta.maincharm_NamePrimary component identificationmeta.code.multipcharSNameName of the star systemmeta.id.assoccharm_SNameSecondary component identificationmeta.code.multipcharSep? Separationarcsecpos.angDistancedoublenullablePA? Position angledegpos.posAngfloatnullablef_PA[b] Indicates ambiguous sign on X-axis of solutionmeta.codecharr_PA? Reference for Sep and PA; in refs.dat filemeta.ref;pos.frameintnullableF1[ac] Sep and PA estimated (1)meta.codecharDmag? Delta magnitude {Delta}magmagphot.mag;arith.difffloatnullablePhotPhotometric systemmeta.id;photcharFltName of filter in the systemmeta.id;instr.filtercharr_Flt? Reference for magnitude; in refs.dat filemeta.ref;pos.frameintnullableF2[ac] Joined of estimated magnitude (1)meta.codecharl_Per[~<>] Limit or approximation flag on Permeta.code.errorcharPer? Periodmeta.notefloatnullablef_PerUnit of the period (y=year, d=day)meta.codecharr_Per? Reference for period; in refs.dat filemeta.ref;pos.frameintnullableObsResolving observation (2)meta.codecharJ/AJ/147/85/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference identifierpos.frameintBibCodeBibliographic codemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notecharJ/AJ/147/85/notesNotesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the star systemmeta.id;meta.maincharm_NameComponent identificationmeta.code.multipcharNoteNotes about the starmeta.note