J/AJ/125/1598ivo://CDS.VizieR/J/AJ/125/1598doi:10.26093/cds/vizier.51251598CDSLepine S.Rich R.M.Shara M.M.2023-04-06T16:50:54Z2005-07-19T13:39:09ZCDS support team

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

cds-question@unistra.frproper-motionsphotometryradial-velocityspectroscopyWe define an enhanced spectral classification scheme for M dwarf stars and use it to derive spectral classification of 104 northern stars with proper motions larger than 0.5"/yr that we discovered in a survey of high proper motion stars at low Galactic latitudes. The final tally is as follows: 54 M dwarfs, 25 sdK and sdM subdwarfs, 14 esdK and esdM extreme subdwarfs, and 11 DA and DC white dwarfs. Among the most interesting cases, we find one star to be the coolest subdwarf ever reported (LSR 2036+5059, with spectral type sdM7.5), a new M9.0 dwarf only about 6 pc distant (LSR 1835+3259), and a new M6.5 dwarf only 7 pc from the Sun (LSR 2124+4003). Spectroscopic distances suggests that 27 of the M dwarfs, three of the white dwarfs, and one of the subdwarfs (LSR 2036+5059) are within 25 pc of the Sun, making them excellent candidates for inclusion in the solar neighborhood census. Estimated sky-projected velocities suggest that most of our subdwarfs and extreme subdwarfs have halo kinematics. We find that several white dwarfs and nonmetal-poor M dwarfs also have kinematics consistent with the halo, and we briefly discuss their possible origin.2003AJ....125.1598Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/125/1598CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/124/1190 : Northern high proper motion stars in DSS (Lepine+, 2002)I/87 : LHS Catalogue, 2nd Edition (Luyten 1979)I/279 : Revised Luyten Half-Second Catalogue (Bakos+ 2002)I/98 : NLTT Catalogue (Luyten, 1979)III/198 : Palomar/MSU nearby star spectroscopic survey (Hawley+ 1997https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/125/1598https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/125/1598http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/125/1598https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/125/1598https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/125/1598http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/125/1598GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/125/1598/table1 (Newly classified high proper motion stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/125/1598/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/125/1598/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/125/1598/table1?GETtext/xml+votable180.050000true2.882583659.14441220.0055555555555555566/888 1116 1298 1304 1332 1353 1357 1386 1552 1628 1782 1855 1962 1998 2435 2558 2994 3005 3135 3141 3166 3429 3499 3585 3646 3709 3752 3779 4037 4655 6381 6659 6784 12520 13273 13793 13952 13960 13965 14056 14074 14099 14152 14248 14430 14482 14651 14772 14783 14858 15116 15494 15535 15552 15628 15660 16065 16158 16277 22229 22251 22326 22966 23620 23753 23929 23944 24338 24353 24486 29663 29685 29943 29948 30159 30184 30193 30330 30351 30378 30448 30545 30566 30694 31061 31837 31915 31940-31941 31956 31973 31993 32000 32080 32224 32229 322447.952274030004205e-20 1.0188844282367877e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/125/1598?format=asciidefaultJ/AJ/125/1598/table1Newly classified high proper motion starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharprimarypmProper motionarcsec/yrpos.pmfloatPApmProper-motion position angledegpos.posAngfloatBmag? The photographic blue magnitudemagphot.mag;em.opt.BfloatnullableRmagThe photographic red magnitudemagphot.mag;em.opt.RfloatKsmag? The K_s_ band magnitudemagphot.mag;em.IR.KfloatnullableObsDat of observationmeta.id;obsnullableOCodeObservatory code (1)meta.code;instr.obstycharSpTypeSpectral type (2)src.spTypecharHRV? Estimated heliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricintnullablee_HRV? Uncertainty in HRVkm/sstat.errorintnullableSimbadNameSimbad column added by the CDSmeta.idchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/AJ/125/1598/table3Measured spectral indices of observed M dwarfs, subdwarfs, and extreme subdwarfsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharCaH1CaH1 spectral index, Reid et al. (<III/98>)spect.indexfloatCaH2CaH2 spectral index, Reid et al. (<III/98>)spect.indexfloatCaH3CaH3 spectral index, Reid et al. (<III/98>)spect.indexfloatTiO5TiO5 spectral index, Reid et al. (<III/98>)spect.indexfloatVO1Hawley et al. 2002 VO1 spectral indexspect.indexfloatTiO6The TiO6 spectral index (1)spect.indexfloatVO2The VO2 spectral index (1)spect.indexfloatTiO7TiO7 spectral index, Hawley et al. (<J/AJ/123/3409>)spect.indexfloatC-MThe Color-M spectral index (1)spect.indexfloatSpTypeSpectral typesrc.spTypecharJ/AJ/125/1598/table5Estimated distances and kinematicsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharSpTypeSpectral type (1)src.spTypecharDistSpectroscopic distance estimatepcpos.distance;pos.heliocentricinte_DistUncertainty in Distpcstat.errorintf_Dist[m] Dist based on spectral type in parenthesesmeta.codecharUvelVelocity toward the Galactic center relative to the LSR (2)km/sphys.veloc;pos.cartesian.xinte_UvelUncertainty in Uvelkm/sstat.errorintf_Uvel[m] Uvel based on spectral type in parenthesesmeta.codecharVvelVelocity in the direction of Galactic rotation relative to the LSR (2)km/sphys.veloc;pos.cartesian.yinte_VvelUncertainty in Vvelkm/sstat.errorintf_Vvel[m] Vvel based on spectral type in parenthesesmeta.codecharWvelVelocity toward the north Galactic pole relative to the LSR (2)km/sphys.veloc;pos.cartesian.zinte_WvelUncertainty in Wvelkm/sstat.errorintf_Wvel[m] Wvel based on spectral type in parenthesesmeta.codechar