J/A+A/446/515ivo://CDS.VizieR/J/A+A/446/515doi:10.26093/cds/vizier.34460515CDSPhan-Bao N.Bessell M.S.2017-06-27T06:38:59Z2006-06-04T07:23:41ZCDS support team

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

cds-question@unistra.frm-starsinfrared-photometrystellar-distanceWe present updated results of spectroscopic follow-up observations of a sample of 45 M dwarf candidates identified by Phan-Bao et al. (2003, Cat. <J/A+A/401/959>) based on the DENIS photometry and proper motion measurements. Forty one of these are nearby late-M dwarfs (d<30pc) with spectral types ranging from M5.0 to M8.5 computed from the spectral indices. One contaminant is probably an F-G main sequence star reddened by intervening dust and three stars that were not observed have previous classifications as M dwarfs in the literature. In this paper, we identify three M7.5, five M8.0, one M8.5 dwarf and confirm two new M8.0 dwarf members of the 25pc volume.2006A&A...446..515Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/446/515CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/denis : The DENIS database (Epchtein+, 1999)I/98 : NLTT Catalogue (Luyten, 1979)I/87 : LHS Catalogue, 2nd Edition (Luyten 1979)J/A+A/380/590 : 30 DENIS late-M dwarfs between 15 and 30pc (Phan-Bao+, 2001)J/A+A/401/959 : 35 DENIS late-M dwarfs between 10 + 30pc (Phan-Bao+, 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/446/515https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/446/515http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/446/515https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/446/515https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/446/515http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/446/515GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/446/515/table12 (Spectral indices, distances and spectral types)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/446/515/table12?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/446/515/table12?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/446/515/table12?GETtext/xml+votable180.050000true0.5254171.260.0055555555555555566/16770 17303 17567 17677 18574 18979 18999 19457 21041 21354 23212 24657 24691 24774 25156 25170 25325 25419 25523 25893 26861 26972 30505 31137 31300 32830 32875 33636 34289 34743 34961 35008 35203 35259 36793 40273 43851 43862 44303 44778 44897 45994https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/446/515?format=asciiInfrareddefaultJ/A+A/446/515/table12Spectral indices, distances and spectral typesDistI-JDistance derived from the I-J colour (5)pcpos.distancefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameThe abbreviated DENIS name (except VB 10)meta.id;meta.maincharn_Name[cd] Note on Name (1)meta.notecharR-IR-I colour index computed from spectramagphot.color;em.opt.R;em.opt.IfloatIMAGAbsolute I band magnitude (2)magphys.magAbs;em.opt.Ifloatr_IMAG[b] Reference for IMAG (3)meta.bibcharJMAGAbsolute J band magnitude (2)magphys.magAbs;em.IR.Jfloatr_JMAG[b] Reference for JMAG (3)meta.bibcharKMAGAbsolute K band magnitude (2)magphys.magAbs;em.IR.Kfloatr_KMAG[b] Reference for KMAG (3)meta.bibcharDistIEstimated distance from Mipcpos.distancefloatDistJEstimated distance from Mjpcpos.distancefloatDistKEstimated distance from Mkpcpos.distancefloatDistAdopted distancepcpos.distancefloatr_Dist[a] Reference for VB 10 Dist (4)meta.bibcharSpTypeVOaSpectral type derived from the VOa index (6)src.spTypecharu_SpTypeVOa[:] Unreliable valuemeta.code.errorcharSpTypeTiO5Spectral type derived from the TiO5 index (6)src.spTypecharu_SpTypeTiO5[:] Unreliable valuemeta.code.errorcharSpTypePC3Spectral type derived from the PC3 index (7)src.spTypecharSpTypeAdopted spectral typesrc.spTypecharEWHaHalpha equivalent width (in Angstroem)0.1nmspect.line.eqWidth;em.line.Halphafloatn_EWHa[*] * when EWHa is an upper limitmeta.notecharONameThe NLTT/LHS namemeta.idcharHalphaThe Halpha index (1)spect.index;em.line.Halphafloatu_Halpha[:] Unreliable valuemeta.code.error;spect.line.intensity;em.line.HalphacharPC3The PC3 spectral index (2)spect.indexfloatCrH1The CrH1 spectral index (2)spect.indexfloatCrH2The CrH2 spectral index (2)spect.indexfloatFeH1The FeH1 spectral index (2)spect.indexfloatFeH2The FeH2 spectral index (2)spect.indexfloatCaH1The CaH1 spectral index (1)spect.indexfloatu_CaH1[:] Unreliable valuemeta.code.errorcharCaH2The CaH2 spectral index (1)spect.indexfloatu_CaH2[:] Unreliable valuemeta.code.errorcharCaH3The CaH3 spectral index (1)spect.indexfloatTiO5The TiO5 spectral index (1)spect.indexfloatu_TiO5[:] Unreliable valuemeta.code.errorcharVOaThe VOa spectral index (3)spect.indexfloatu_VOa[:] Unreliable valuemeta.code.errorchar_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.main