J/AJ/126/3007ivo://CDS.VizieR/J/AJ/126/3007doi:10.26093/cds/vizier.51263007CDSReid I.N.Cruz K.L.Allen P.Mungall F.Kilkenny D.Liebert J.,Hawley S.L.Fraser O.J.Covey K.R.Lowrance P.2023-04-06T16:50:59Z2004-11-15T19:01:57ZCDS support team

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

cds-question@unistra.frlate-type-starsinfrared-photometrystellar-distanceWe present low-resolution optical spectroscopy and BVRI photometry of 453 candidate nearby stars drawn from the NLTT (<I/98>) proper-motion catalog. The stars were selected based on optical/near-infrared colors, derived by combining the NLTT photographic data with photometry from the 2MASS Second Incremental Data Release (<II/241>). Based on the derived photometric and spectroscopic parallaxes, we identify 111 stars as lying within 20pc of the Sun, including nine stars with formal distance estimates of less than 10pc. A further 53 stars have distance estimates within 1{sigma} of our 20pc limit. Almost all of those stars are additions to the nearby-star census. In total, our NLTT-based survey has so far identified 496 stars likely to be within 20pc, of which 195 are additions to nearby-star catalogs. Most of the newly identified nearby stars have spectral types between M4 and M8.2003AJ....126.3007Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/126/3007CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/70 : Nearby Stars, Preliminary 3rd Version (Gliese+ 1991)I/98 : NLTT Catalogue (Luyten, 1979)II/241 : 2MASS Catalog Intermediate Data Release (IPAC/UMass, 2000)J/AJ/123/2806 : Nearby stars in the NLTT catalogue (Reid+, 2002)J/AJ/123/2822 : Photometry of southern NLTT stars (Reid+, 2002)J/AJ/123/2828 : Spectroscopy of northern NLTT stars (Cruz+, 2002)J/AJ/126/2421 : 2MASS-Selected sample of ultracool dwarfs (Cruz+, 2003)J/AJ/126/2449 : Nearby ultracool dwarfs in galactic plane (Reid+, 2003)J/ApJ/582/1011 : Revised NLTT Catalog (Salim+, 2003)J/AJ/128/463 : A preliminary 20pc census from the NLTT cat. (Reid+, 2004)J/AJ/130/1680 : LSPM-North proper-motion catalog nearby stars (Lepine+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/126/3007https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/126/3007http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/126/3007https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/126/3007https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/126/3007http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/126/3007GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/126/3007/table1 (Ultracool NLTT1 dwarfs in Paper V (J/AJ/126/2124))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/126/3007/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/126/3007/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/126/3007/table1?GETtext/xml+votable180.050000true34.740833-6.2969440.005555555555555556Cone search capability for table J/AJ/126/3007/table2 (Astrometry and photometry of spectroscopic targets)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/126/3007/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/126/3007/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/126/3007/table2?GETtext/xml+votable180.050000true1.374167-25.5166670.005555555555555556Cone search capability for table J/AJ/126/3007/table4 (Photometry of NLTT dwarfs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/126/3007/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/126/3007/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/126/3007/table4?GETtext/xml+votable180.050000true1.554167-2.5361110.0055555555555555566/305 372 489 526 552 930 966 971 1009 1020 1025 1157 1185 1198 1676 1872 2071 2156 2293 2296 2456 2512 2572 2649 2701 2783 2796 2809 2844 3509 3579 3863 3969 4048 4299 4304 4396 4455 4468 4518 4520 4739 4768 4809 4867 4927 4936 4948 5160 5264 5428 5435 5439 5540 5670 5758 5797 6032 6102 6126 6236 6343 6453 6480 6505 6660 6690 6692 6750 6880 7080 7170 7201 7277 7537 7542 7606 7926 7964 8028 8088 8109 8446 8492 8593 8609 8657 8723 8920 8958 9091 9185 9202 9428 9433 9534 9622 9656 9802 9807 9867 9929 9951 10022 10298 10490 10495 10500 10616 10644 10676 10731 10770 10783 10847 10850 10873 10984 11105 11127 11157 11191 11212 11378 11435 11482 11527 11558 11632 11756 11816 11967 12020 12022 12140 12168 12208 12504 12679 12705 12728 12731 12879 13062 13376 13396 13654 13659 13732 13773 14082 14850 14910 14931 14981 14989 15066 15249 15253 15355 16290 16430 16484 16492 16506 16510 16597 16600 16666 16669 16673 16755 16788 16870 16892 16901 17019 17022 17063 17082 17087 17120 17155 17202 17222 17235 17264 17278 17283 17285 17288 17294 17300 17328 17335 17360 17396 17412 17420 17431 17509 17542-17543 17594 17677 17684 17808 17978 17985 18012 18017 18059-18061 18064-18065 18411 18468 18563 18574 18586 18595 18604 18617 18662 18700 18743 18979 18994 18999 19090 19323 19778 19808 19895 20386 20425 20661 20663 20713 20790 20993 20996 21209 21220 21223 21354 21413 21427 21491 21590 21790 22394 22473 22541 22565 22615 22651 22755 22760 22824 22954 23054 24215 24232 24236 24670 24683-24684 24686 24701 24774 24810 24833 24838 24841 24932 24962 24970 24974 24993-24994 25003 25010 25021 25196 25199 25206 25211 25280 25287 25302 25397 25456 25543 25557 25623 25743 25850 25893 26138 26290 26587 26599 26723 26768 26775 26785 26820 26858 26916 26961 27514 27602 27909 27952 27964 28053 28103 28133 28195 28204 28327 28329 28343 28350 28360 28370 28387 28506 28511 29392 29767 29910 30000 30017 30849 31738 32129 32201 32263 32312 32362 32596 32618 32679 32730 32742 32761 34295 34302 34535 34647-34648 34682 34686 34749 35247 35594 35630 35640 35657 35663 35714 35716 35982 36145 36312 36406 36541 36544 36549 36798 36807 36842 38899 40178 40313 40319 40327 40368 40370 40378 40380 40391 40393 40412 40435 40515 40553 40748 40756 40765 40786-40787 42747 42885 42895 43862 43957 43991 44178 44209 44213 44221 44225 44251 44318 44352 44723 44730 44752 44756 44759 44761 44765 44842 44846 46567 46671 46678 46683 46833 46882 46914-46915 46922 46926 46999 47050 47057 47061 47084 47946 48093 48191 48304 48336 48351 48359 48393 48398 48444 48490 48654 48684 48716 48744 48800 48879 48977 49029 491478.650015785639275e-20 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/126/3007?format=asciiInfrareddefaultJ/AJ/126/3007/table1Ultracool NLTT1 dwarfs in Paper V (J/AJ/126/2124)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar Namemeta.id;meta.maincharRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainrmagNLTT red magnitudemagphot.mag;em.opt.RfloatJmag2MASS J magnitudemagphot.mag;em.IR.JfloatHmag2MASS H magnitudemagphot.mag;em.IR.HfloatKsmag2MASS Ks magnitudemagphot.mag;em.IR.KfloatDistHeliocentric Distancepcpos.distancefloate_Distrms uncertainty on Distpcstat.errorfloatJMAGAbsolute J magnitudemagphys.magAbs;em.optfloatSpTypeSpectral typesrc.spTypecharn_NameNote, detailed in notes.dat filemeta.noteintJ/AJ/126/3007/table2Astrometry and photometry of spectroscopic targetsDistHeliocentric Distancepcpos.distancefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameThe NLTT object namemeta.id;meta.maincharprimaryf_NameFlag on Name (1)meta.code.errorcharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainrmagThe NLTT r band magnitudemagphot.mag;em.opt.RfloatJmagThe 2MASS J band magnitudemagphot.mag;em.IR.JfloatHmagThe 2MASS H band magnitudemagphot.mag;em.IR.HfloatKsmagThe 2MASS Ks band magnitudemagphot.mag;em.IR.KfloatJMAGThe absolute 2MASS J band magnitudemagphys.magAbs;em.optfloate_DistError in Distpcstat.errorfloatComCommentsmeta.notecharn_NameAdditional notes, in notes.dat filemeta.notecharJ/AJ/126/3007/notesNotesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNoteNote numbermeta.noteintTextText of the notemeta.notecharJ/AJ/126/3007/table3Narrowband indices for NLTT dwarfsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameThe NLTT object namemeta.id;meta.maincharTiO5The TiO 5 spectral index (1)spect.indexfloatCaOH? The CaOH spectral index (2)spect.indexfloatnullableCaH1? The CaH 1 spectral index (3)spect.indexfloatnullableCaH2The CaH 2 spectral index (4)spect.indexfloatCaH3The CaH 3 spectral index (5)spect.indexfloatTiO-aThe TiO-a spectral index (6)spect.indexfloatVO-aThe VO-a spectral index (7)spect.indexfloatHaThe H{alpha} spectral index (8)spect.index;em.line.HalphafloatSpTypeSpectral typesrc.spTypecharJ/AJ/126/3007/table4Photometry of NLTT dwarfsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameThe NLTT object namemeta.id;meta.maincharn_Name? Note on Name, in notes.dat filemeta.noteintnullableRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainVmagThe V band magnitudemagphot.mag;em.opt.Vfloatu_VmagUncertainty flag in Vmagmeta.code.errorcharB-V? The (B-V) colormagphot.color;em.opt.B;em.opt.Vfloatnullableu_B-VUncertainty flag in B-Vmeta.code.errorcharV-RThe (V-R) colormagphot.color;em.opt.V;em.opt.Rfloatu_V-RUncertainty flag in V-Rmeta.code.errorcharV-IThe (V-I) colormagphot.color;em.opt.V;em.opt.Ifloatu_V-IUncertainty flag in V-Imeta.code.errorcharNobsNumber of observationsmeta.numberinte_Vmag? Formal residual about the mean in Vmagmagstat.errorfloatnullablee_B-V? Formal residual about the mean in B-Vmagstat.errorfloatnullablee_V-R? Formal residual about the mean in V-Rmagstat.errorfloatnullablee_V-I? Formal residual about the mean in V-Imagstat.errorfloatnullableJmagThe 2MASS J band magnitudemagphot.mag;em.IR.Jfloatu_JmagUncertainty flag in Jmagmeta.code.errorcharHmagThe 2MASS H band magnitudemagphot.mag;em.IR.Hfloatu_HmagUncertainty flag in Hmagmeta.code.errorcharKsmagThe 2MASS Ks band magnitudemagphot.mag;em.IR.Kfloatu_KsmagUncertainty flag in Ksmagmeta.code.errorcharJMAGDerived absolute 2MASS J band magnitudemagphys.magAbs;em.optfloate_JMAGError in JMAGmagstat.errorfloatDistHeliocentric Distancepcpos.distancefloat