J/AJ/101/625ivo://CDS.VizieR/J/AJ/101/625doi:10.26093/cds/vizier.51010625CDSLatham D.W.Mazeh T.Davis R.J.Stefanik R.P.Abt H.A.2023-04-06T16:49:24Z2018-05-15T07:18:40ZCDS support team

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

cds-question@unistra.frmilky-way-galaxynorth-galactic-polemultiple-starsradial-velocityWe present precise radial velocities from a survey of 247 stars centered on Selected Area 57 at the North Galactic Pole, complete for late-type stars with V magnitude brighter than 12.0. The radial velocities have a typical precision of 0.2-0.3km/s. New spectral types and distances estimates are presented for 120 of the stars in the sample. We have considered all pairs of stars with angular separations between 1 and 600arcsec, and find 11 candidate pairs with velocity differences less than 1.5km/s. We estimate that 4 or 5 of the 11 candidate pairs are actually bound binaries, but none with separations larger than 0.1pc. The constraints imposed by these results on the actual distribution of wide binaries in the Galaxy should now be reanalyzed. The unusual precision of our velocities led to the discovery of a new cluster associated with the multiple system ADS 8811 ABC.1991AJ....101..625Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/101/625CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/101/625https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/101/625http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/101/625https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/101/625https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/101/625http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/101/625GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/101/625/table1 (Mean radial velocities)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/101/625/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/101/625/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/101/625/table1?GETtext/xml+votable180.050000true199.05099730.8953270.005555555555555556Cone search capability for table J/AJ/101/625/table2 (Stroemgren photometry and distances for a few stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/101/625/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/101/625/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/101/625/table2?GETtext/xml+votable180.050000true198.43535529.7999310.005555555555555556Cone search capability for table J/AJ/101/625/table4 (Stars in the W11450 groups)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/101/625/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/101/625/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/101/625/table4?GETtext/xml+votable180.050000true197.34530430.9058310.0055555555555555565/2595 2598 2601 6/10373-10375 10377 10379 10386 10398 10401 10413 10416-10418https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/101/625?format=asciidefaultJ/AJ/101/625/table1Mean radial velocitiesSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarWeistrop star numbermeta.id;meta.mainintm_Star[NS] Multiplicity index on Starmeta.code.multipcharRAB1950Right ascension (B1950)pos.eq.ra;meta.mainDEB1950Declination (B1950)pos.eq.dec;meta.mainT[MSR] code for the template used to derive the velocity (1)meta.codecharo_RVNumber of radial velocity observationsmeta.numberintRV? Mean radial velocity (or center-of-mass velocity {gamma} of a binary with a solved orbit, as noted)km/sspect.dopplerVeloc;stat.meanfloatnullablee_RV? rms uncertainty on RVkm/sstat.errorfloatnullableVmagV magnitudemagphot.mag;em.opt.Vfloatn_Vmag[HK] Band if not Vmag in Vmag columnmeta.notecharDist? Distancepcpos.distance;pos.heliocentricintnullableBinCode for the status of our spectroscopic orbit solutions (2)meta.codecharSpTypeNew spectral type (wl for weak lined)src.spTypecharQual[abc1 ] Quality code (3)meta.code.qualcharNote[*] * indicates a note in notes.dat filemeta.notechar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.decnullableindexedJ/AJ/101/625/table2Stroemgren photometry and distances for a few starsSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarWeistrop star numbermeta.id;meta.mainintRAB1950Right ascension (B1950)pos.eq.ra;meta.mainDEB1950Declination (B1950)pos.eq.dec;meta.mainVmagV magnitudemagphot.mag;em.opt.VfloatVmagSStroemgren V magnitudemagphot.mag;em.opt.Bfloatb-yStroemgren b-y colour indexmagphot.color;em.opt.B;em.opt.Vfloatm1Stroemgren m1 indexmagphot.colorfloatc1Stroemgren c1 indexmagphot.colorfloatbetaStroemgren beta indexmagphot.color;em.opt.B;em.line.HbetafloatE(b-y)? b-y colour excessmagphot.color.excessfloatnullableDistK? Knude distancepcpos.distance;pos.heliocentricintnullableDistA? Abt distancepcpos.distance;pos.heliocentricintnullableDistY? Yoss distancepcpos.distance;pos.heliocentricintnullableSpTypeKPNO spectral typesrc.spTypechar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.decnullableindexedJ/AJ/101/625/table3Wide binaries in SA57 and the probability that they are boundDistDistancepcpos.distance;pos.heliocentricintthetaAngular separationarcsecpos.angDistancefloatDRVRadial-velocity differencekm/sspect.dopplerVeloc;arith.difffloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNamesWeistrop numbers of the two stars in the candidate pairmeta.id;meta.mainchar<RV>Mean radial velocitykm/sspect.dopplerVeloc;stat.meanfloate_DRVrms uncertainty on DRVkm/sstat.errorfloatSepSeparationpcpos.distance;phys.sizefloatMassMasssolMassphys.massfloatPboundProbability that the binary is boundstat.fit.goodnessfloatSimbadNameSimbad column added by the CDSmeta.idcharJ/AJ/101/625/table4Stars in the W11450 groupsn_Vmag[HK] Band if not Vmag in Vmag columnmeta.notecharDist? Distancepcpos.distance;pos.heliocentricintnullableBinCode for the status of our spectroscopic orbit solutions (2)meta.codecharSpTypeNew spectral type (wl for weak lined)src.spTypecharQual[abc1 ] Quality code (3)meta.code.qualcharSimbadNameSimbad column added by the CDSmeta.idchar_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.decnullableindexedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarWeistrop star numbermeta.id;meta.mainintm_Star[NS] Multiplicity index on Starmeta.code.multipcharRAB1950Right ascension (B1950)pos.eq.ra;meta.mainDEB1950Declination (B1950)pos.eq.dec;meta.mainT[MSR] code for the template used to derive the velocity (1)meta.codecharo_RVNumber of radial velocity observationsmeta.numberintRV? Mean radial velocity (or center-of-mass velocity {gamma} of a binary with a solved orbit, as noted)km/sphys.veloc;pos.heliocentricfloatnullablee_RV? rms uncertainty on RVkm/sstat.errorfloatnullableVmagV magnitudemagphot.mag;em.opt.VfloatJ/AJ/101/625/notesNotesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameWeistrop binary name (WNNNNNN)meta.id;meta.maincharNoteText of the notemeta.notechar