J/MNRAS/373/705ivo://CDS.VizieR/J/MNRAS/373/705doi:10.26093/cds/vizier.73730705CDSReyle C.Scholz R.D.Schultheis M.Robin A.C.Irwin M.2024-07-04T20:17:41Z2007-12-05T12:36:58ZCDS support team

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

cds-question@unistra.frdwarf-starsspectroscopyWe present spectra of 59 nearby star candidates, M dwarfs and white dwarfs, previously identified using high proper motion catalogues and the DENIS database. We review the existing spectral classification schemes and spectroscopic parallax calibrations in the near-infrared J band and derive spectral types and distances of the nearby candidates. Forty-two stars have spectroscopic distances smaller than 25pc, three of them being white dwarfs. Two targets lie within 10pc, one M8 star at 10.0pc (APMPM J0103-3738), and one M4 star at 8.3pc (L 225-57). One star, LHS 73, is found to be among the few subdwarfs lying within 20pc. Furthermore, together with LHS 72, it probably belongs to the closest pair of subdwarfs we know.2006MNRAS.373..705Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/373/705CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/421/643 : New nearby stars in the LEHPMS (Reyle+, 2004)J/A+A/390/491 : DENIS new nearby stars (Reyle+, 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/373/705https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/373/705http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/373/705https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/373/705https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/373/705http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/373/705GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/373/705/cand (Nearby star candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/373/705/cand?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/373/705/cand?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/373/705/cand?GETtext/xml+votable180.050000true8.30525-47.55494440.005555555555555556Cone search capability for table J/MNRAS/373/705/table5 (Spectroscopic indices, spectral type, absolute magnitude M_J_ and spectroscopic distance of the red dwarf candidates observed at NTT.)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/373/705/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/373/705/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/373/705/table5?GETtext/xml+votable180.050000true8.30525-47.55494440.0055555555555555566/16420 16422 16500 16619 16955 16966 25146 33199 33226 33234 33269 33571 33630 33713 33737 33746 33884 33898 34898 34908 34910 34920 34959 35113 35282 35327 35355 35412 35451 35453 35657 35659 35845 35892 36061 36260 36268 36406 36416 38755 45389 45444 45523 46031 46210 46256 46299 46324 46336 46373 46419 46504 46673 46698 47318 48128https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/373/705?format=asciiOpticaldefaultJ/MNRAS/373/705/candNearby star candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintr_NameSimbad column added by the CDSmeta.bibcharNameName of the starmeta.id;meta.maincharn_Name[abc] Note on distance estimation (1)meta.notecharSSimbad column added by the CDSmeta.ref.urlcharRAJ2000Right ascension (J2000, at Epoch)pos.eq.ra;meta.mainDEJ2000Declination sign (J2000, at Epoch)pos.eq.dec;meta.mainEpochEpoch of observation at ESO/NTTyrtime.epoch;obsfloatpmRAProper motion along RA directionarcsec/yrpos.pm;pos.eq.rafloatpmDEProper motion along Declinationarcsec/yrpos.pm;pos.eq.decfloatBjmagBj magnitude (2)magphot.mag;em.opt.BfloatRmagR magnitude (2)magphot.mag;em.opt.RfloatImagDENIS I magnitudemagphot.mag;em.opt.Ifloatn_Imag[J] J if Jmag in Imagmeta.notecharI-JDenis I-J colour indexmagphot.color;em.IR;em.IRfloatn_I-J[J] J if J-Ks in I-Jmeta.notechardphot? Photometric distancepcpos.distance;pos.heliocentricfloatnullabledphot2? Second photometric distance estimate (3)pcpos.distance;pos.heliocentricfloatnullableDENISDisplay the DENIS data (Cat. B/denis)meta.ref.urlcharSimbadSimbad column added by the CDScharJ/MNRAS/373/705/table5Spectroscopic indices, spectral type, absolute magnitude M_J_ and spectroscopic distance of the red dwarf candidates observed at NTT.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the starmeta.id;meta.maincharRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainTiO5Spectral index TiO5spect.indexfloatCaH1Spectral index CaH1spect.indexfloatCaH2Spectral index CaH2spect.indexfloatCaH3Spectral index CaH3spect.indexfloatPC3Spectral index PC3spect.indexfloatSpTypeMK spectral type (1)src.spTypecharJmagDENIS J magnitudemagphot.mag;em.IR.JfloatJMAGAbsolute J magnitudemagphys.magAbs;em.IR.JfloatDistSpectroscopic distancepcpos.distance;pos.heliocentricfloate_Dist? Error on spectroscopic distancepcstat.errorfloatnullableCommentCommentsmeta.noteDENISDisplay the DENIS data (Cat. B/denis)meta.ref.urlchar