J/A+A/598/A92ivo://CDS.VizieR/J/A+A/598/A92doi:10.26093/cds/vizier.35980092CDSLodieu N.Espinoza Contreras M.Zapatero Osorio M.R.Solano E.,Aberasturi M.Martin E.L.2019-06-03T13:23:42Z2017-02-07T08:02:51ZCDS support team

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

cds-question@unistra.frsurveyslate-type-starsvisible-astronomysloan-photometryinfrared-photometryproper-motionsspectroscopyWe developed an efficient method to search for late-type subdwarfs. We carried out a search cross-matching SDSS, 2MASS, and UKIDSS with VO tools. We considered different photometric and proper motion criteria for our selection. We identified 100 late-type subdwarf candidates. We obtained our own low-resolution optical spectra for 71 of our candidates and retrieved Sloan spectra for 30 of them (9 in common to the 71). We classified 92 candidates based on optical spectra. Our new discoveries include 49 subdwarfs, 25 extreme subdwarfs, six ultrasubdwarfs, one subdwarf/extreme subdwarf, and two dwarfs/subdwarfs. In addition, we discovered three early-L subdwarfs. We double the numbers of cool subdwarfs and derived a surface density of late-type subdwarfs.2017A&A...598A..92Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/598/A92CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/493/L27 : Parallaxes of 10 ultracool subdwarfs (Schilbach+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/598/A92https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/598/A92http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/598/A92https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/598/A92https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/598/A92http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/598/A92GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/598/A92/table1 (ID, coordinates, photometry, and proper motions)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/598/A92/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/598/A92/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/598/A92/table1?GETtext/xml+votable180.050000true23.718625-1.07719440.0055555555555555566/544 4099 4142 4157 4245 4352 4465 4521 4661 4786 5017 5027 5093 5095 5222 5326 5691 6169 6230 6241 6423 6476 7181 7186 7536 8194 8405 8895 9607 9905 10389 10429 10447 10569 10770 11095 17661 17907 19778 25854 25916 25936 25947 25965 26042 26194 26216 26250 26325 26412 26438 26497 26539 26940 26992 27019 27038 27084 27110 27116 27199 27231 27253 27294 27334 27393 27410 27420 27441 27460 27470 27491 27517-27518 27579 27587-27588 27607 27721 27779 27818 27828 27886 27921 28139 28156 28172 28409 30037 31338 31356 31386 31393 31426 31434 31456 31460 315998.305533028865447e-20 6.090060298487514e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/598/A92?format=asciiOpticalInfrareddefaultJ/A+A/598/A92/table1ID, coordinates, photometry, and proper motionsSimbadNameSimbad column added by the CDSmeta.idcharHrReduced proper motionmagphys.magAbsfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDID numbermeta.id;meta.mainintRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainumagSDSS u magnitudemagphot.mag;em.opt.Ufloate_umagError on the SDSS u magnitudemagstat.error;phot.mag;em.opt.UfloatgmagSDSS g magnitudemagphot.mag;em.opt.Bfloate_gmagError on the SDSS g magnitudemagstat.error;phot.mag;em.opt.BfloatrmagSDSS r magnitudemagphot.mag;em.opt.Rfloate_rmagError on the SDSS r magnitudemagstat.error;phot.mag;em.opt.RfloatimagSDSS i magnitudemagphot.mag;em.opt.Ifloate_imagError on the SDSS i magnitudemagstat.error;phot.mag;em.opt.IfloatzmagSDSS z magnitudemagphot.mag;em.opt.Ifloate_zmagError on the SDSS z magnitudemagstat.error;phot.mag;em.opt.IfloatYmag? UKIDSS Y magnitudemagphot.mag;em.IR.Jfloatnullablee_Ymag? Error on the UKIDSS Y magnitudemagstat.error;phot.mag;em.opt.BfloatnullableJmag2MASS or UKIDSS J magnitudemagphot.mag;em.IR.Jfloate_JmagError on the 2MASS or UKIDSS J magnitudemagstat.error;phot.mag;em.IR.JfloatHmag? 2MASS or UKIDSS H magnitudemagphot.mag;em.IR.Hfloatnullablee_Hmag? Error on the 2MASS or UKIDSS H magnitudemagstat.error;phot.mag;em.IR.HfloatnullableKmag2MASS or UKIDSS K magnitudemagphot.mag;em.IR.Kfloate_KmagError on the 2MASS or UKIDSS K magnitudemagstat.error;phot.mag;em.IR.KfloatpmTotal proper motionarcsec/yrpos.pmfloatJ/A+A/598/A92/table2ID, proper motion, and reduced proper motionsIDID numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintpmVOProper motion from the VOarcsec/yrpos.pmfloatHrVOReduced proper motion from the VOmagphys.magAbsfloatpmRAProper motion in RA from imagesarcsec/yrpos.pm;pos.eq.rafloate_pmRAError on proper motion in RA from imagesarcsec/yrstat.error;pos.pm;pos.eq.rafloatpmDEProper motion in dec from imagesarcsec/yrpos.pm;pos.eq.decfloate_pmDEError on proper motion in DE from imagesarcsec/yrstat.error;pos.pm;pos.eq.decfloatpmRevised total proper motionarcsec/yrpos.pmfloate_pmError on revised total proper motionarcsec/yrstat.errorfloatHrRevised reduced proper motiondegphys.magAbsfloate_HrError on revised Hrdegstat.errorfloatb_HrMinimum value of Hrdegphys.magAbs;stat.minfloatB_HrMaximum value on Hrdegphys.magAbs;stat.maxfloatJ/A+A/598/A92/table4ID,TiO5,CaH1,CaH2,CaH3,SpT,d,Vh,U,V,WrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintspShow the spectrummeta.ref.urlcharIDID numbermeta.id;meta.mainintTiO5TiO5 indexmeta.code;spect.indexfloatCaH1CaH1 indexmeta.code;spect.indexfloatCaH2CaH2 indexmeta.code;spect.indexfloatCaH3CaH3 indexmeta.code;spect.indexfloatSpTypeLSpectral type based on Lepine's schemesrc.spTypecharSpTypeAdopted spectral typesrc.spTypecharTelTelescopemeta.id;instr.telcharDist? Distancepcpos.distance;pos.heliocentricfloatnullablee_Dist? Error on the distancepcstat.errorfloatnullableHV? Heliocentric velocitykm/sspect.dopplerVeloc;pos.heliocentricintnullablee_HV? Error on the heliocentric velocitykm/sstat.errorintnullableUvel? Space motion: U componentkm/sphys.veloc;pos.cartesian.xfloatnullablee_Uvel? Space motion: error on U componentkm/sstat.errorfloatnullableVvel? Space motion: V componentkm/sphys.veloc;pos.cartesian.yfloatnullablee_Vvel? Space motion: error on V componentkm/sstat.errorfloatnullableWvel? Space motion: W componentkm/sphys.veloc;pos.cartesian.zfloatnullablee_Wvel? Space motion: error on W componentkm/sstat.errorfloatnullable