J/AJ/115/2397ivo://CDS.VizieR/J/AJ/115/2397doi:10.26093/cds/vizier.51152397CDSEggen O.J.2023-04-06T16:50:28Z1999-10-30T18:54:02ZCDS support team

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

cds-question@unistra.frphotometrymetallicityradial-velocityvisible-astronomytrigonometric-parallaxSeveral samples of nearby stars with the most accurate astrometric and photometric parameters are searched for clues to their evolutionary history. The main samples are (1) the main-sequence stars with b-y between 0.29 and 0.59mag (F3 to K1) in the Yale parallax catalog, (2) a group of high-velocity subgiants studied spectroscopically by Ryan & Lambert (1995AJ....109.2068R), and (3) high-velocity main-sequence stars in the extensive investigation by Norris, Bessel, & Pickles (1985ApJS...58..463N). The major conclusions are as follows: (1) The oldest stars (halo), t>=10-12Gyr, have V-velocities (in the direction of Galactic rotation and referred to the Sun) in the range from about -50 to -800km/s and have a heavy-element abundance [Fe/H] of less than about -0.8dex. The age range of these objects depends on our knowledge of globular cluster ages, but if age is correlated with V-velocity, the youngest may be M22 and M28 (V~-50km/s) and the oldest NGC 3201 (V~-500km/s) and assorted field stars. (2) The old disk population covers the large age range from about 2Gyr (Hyades, NGC 752) to 10 or 12Gyr (Arcturus group, 47 Tuc), but the lag (V) velocity is restricted to less than about 120km/s and [Fe/H]>=-0.8 or -0.9dex. The [Fe/H]~-0.8dex division between halo and old disk, near t~10-12Gyr, is marked by a change in the character of the CN index (Cm) and of the blanketing parameter K of the DDO photometry. (3) The young disk population, t<2Gyr, is confined exclusively to a well-defined area of the (U, V) velocity plane. The age separating young and old disk stars is also that separating giant evolution of the Hyades (near main-sequence luminosity) and M67 (degenerate helium cores and a large luminosity rise) kinds. The two disk populations are also separated by such indexes as the g-index of Geveva photometry. There appears to be no obvious need to invoke exogeneous influences to understand the motion and heavy-element abundance distributions of the best-observed stars near the Sun. Individual stars of special interest include the parallax star HD 55575, which may be an equal-component binary, and the high-velocity star HD 220127, with a well-determined space velocity near 1000km/s.1998AJ....115.2397Ehttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/115/2397CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/238 : Yale Trigonometric Parallaxes, Fourth Edition (van Altena+ 1995)II/80 : A catalogue of homogeneous photometry of bright stars in the DDOJ/AJ/107/2184 : FK giants and supergiants photometry (Eggen 1994)J/AJ/107/594 : Evolved GK stars near the Sun. II. (Eggen 1994)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/115/2397https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/115/2397http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/115/2397https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/115/2397https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/115/2397http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/115/2397GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/115/2397/table17 (Stars from a large sample of dwarfs that lie in an otherwise vacant region of the (P[Fe/H], V-velocity)-plane)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/115/2397/table17?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/115/2397/table17?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/115/2397/table17?GETtext/xml+votable180.050000true14.403210.58670.0055555555555555566/30 119 256 359 610 891 977 1267 1614 1964 2419 2861 3165 3593 4603 5306 6235 6291 6366 7394 7678 8191 8253 8299 14385 14534 16235 18349 18628 20354 22302 22357 22909 23442 23470 23701 24229 24325 24442 24446 29006 32219https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/115/2397?format=asciiOpticaldefaultJ/AJ/115/2397/table1Parallax starsn_RVUncertainty flag on RVmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameHD or BD namemeta.id;meta.maincharprimaryGCTPYale Trigonometric Parallaxes (Cat. <I/238>) namemeta.idcharb-yAdopted b-y colour indexmagphot.color;em.opt.B;em.opt.Vfloatm1Adopted m_1_ metallicity indexmagphot.colorfloatP[Fe/H]? P[Fe/H] index (1)phys.abund.Fefloatnullableu_P[Fe/H]Uncertainty flag on P[Fe/H]meta.code.errorcharVMAG? Absolute V magnitude (1)magphys.magAbs;em.optfloatnullablen_VMAG[)] Uncertainty flag on VMAGmeta.notecharplxp? Photometric parallaxmaspos.parallax.photintnullableplxt? Trigonometric parallax from GCTP (Cat. <I/238>)maspos.parallax.trigintnullablen_plxt[)] Uncertainty flag on plxtmeta.notecharpmRA? Proper motion in right ascensionmas/yrpos.pm;pos.eq.raintnullablepmDE? Proper motion in declinationmas/yrpos.pm;pos.eq.decintnullableRV? Radial velocitykm/sphys.veloc;pos.heliocentricfloatnullableUvel? U velocity (+ away from the Galactic center)km/sphys.velocintnullableVvel? V velocity (+ in direction of Galactic rotation)km/sphys.velocintnullableWvel? W velocity (+ toward the north Galactic pole)km/sphys.velocintnullableSpTypeSpectral type from the YPCsrc.spTypecharHR? HR number (Cat. <V/50>)meta.idcharJ/AJ/115/2397/note1Individual notes to table1.datrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameHD numbermeta.id;meta.maincharprimaryNoteText of the notemeta.notecharJ/AJ/115/2397/table2Members of the HR 1614 Supercluster and GroupNote[*] *: individual note (2)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMember[SG] S: supercluster, G: groupmeta.code.membercharNameStar namemeta.id;meta.maincharprimaryV0Dereddened V magnitudemagphot.mag;em.opt.Vfloat(b-y)0Dereddened b-y colour indexmagphot.color;em.opt.B;em.opt.Vfloat(m1)0Dereddened m_1_ indexmagphot.color.reddFreefloat(C1)0Dereddened C_1_ indexmagphot.color.reddFreefloatP[Fe/H]P[Fe/H] index (1)Sunphys.abund.Fefloatn_P[Fe/H][)] Uncertainty flag on P[Fe/H]meta.notecharVMAGpPhotometric absolute V magnitudemagphot.mag;em.opt.VfloatVMAGCCluster absolute V magnitudemagphys.magAbs;em.optfloatDVMAGPhotometric minus Cluster absolute V magnitude (1)magphot.mag.distModfloat(42-45)? (42-45) colour indexmagphot.colorfloatnullableCm? C_m_ colour indexmagphot.colorfloatnullableJ/AJ/115/2397/table3Main-sequence members of the Arcturus grouprecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharprimaryV0Dereddened V magnitudemagphot.mag;em.opt.Vfloat(b-y)0Dereddened b-y colour indexmagphot.color;em.opt.B;em.opt.Vfloat(m1)0Dereddened m_1_ metallicity indexmagphot.color.reddFreefloat(C1)0Dereddened C_1_ indexmagphot.color.reddFreefloatP[Fe/H]P[Fe/H] index (1)Sunphys.abund.FefloatVMAGpPhotometric absolute V magnitudemagphot.mag;em.opt.VfloatVMAGCCluster absolute V magnitudemagphys.magAbs;em.optfloatDVMAGPhotometric minus Cluster absolute V magnitude (1)magphot.mag.distModfloatpmRAProper motion in right ascensionmas/yrpos.pm;pos.eq.raintpmDEProper motion in declinationmas/yrpos.pm;pos.eq.decintRVRadial velocitykm/sphys.veloc;pos.heliocentricfloatMODDistance modulusmagphot.mag.distModfloatRGalactic radial distance from the Sunpcpos.distancefloatUvelU velocitykm/sphys.velocintVvelV velocitykm/sphys.velocfloatWvelW velocitykm/sphys.velocint(42-45)? (42-45) colour indexmagphot.colorfloatnullableCm? C_m_ colour indexmagphot.colorfloatnullableJ/AJ/115/2397/table4Equal-components binariesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameHD numbermeta.id;meta.maincharprimaryOtherNameOther namemeta.idcharrhoPeriod of the binary star orbityrtime.periodfloataSemi-major axis of the orbitarcsecphys.angSize.smajAxis;src.orbitalfloatn_a[)] Uncertainty flag on ameta.notecharMassTotal masssolMassphys.massfloatMODDistance modulusmagphot.mag.distModfloatlogMMasslog(solMass)phys.massfloatVMAGAbsolute V magnitudemagphys.magAbs;em.optfloatP[Fe/H]P[Fe/H] indexSunphys.abund.FefloatRefReferences (1)meta.refintJ/AJ/115/2397/table5Comparison with P[Fe/H] from Edvardsson et al., 1993, Cat. <J/A+A/275/101>recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameHD numbermeta.id;meta.maincharprimaryP[Fe/H]P[Fe/H] indexSunphys.abund.Fefloat[Fe/H]! [Fe/H] (1)Sunphys.abund.FefloatJ/AJ/115/2397/table6NBP (Norris et al., 1985ApJS...58..463N) dwarfsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharprimaryNBPNBP (Norris et al., 1985ApJS...58..463N) numbermeta.idintE(b-y)? (b-y) colour excessmagphot.color.excessfloatnullable(b-y)0? Deredenned (b-y) colour indexmagphot.color;em.opt.B;em.opt.Vfloatnullablem0? m_0_ indexmagphot.color.reddFreefloatnullableP[Fe/H]? P[Fe/H] indexSunphys.abund.FefloatnullableVMAG? Absolute V magnitudemagphys.magAbs;em.optfloatnullableMOD? Distance modulusmagphot.mag.distModfloatnullablepmRA? Proper motion in right ascensionmas/yrpos.pm;pos.eq.raintnullablepmDE? Proper motion in declinationmas/yrpos.pm;pos.eq.decintnullableRV? Radial velocitykm/sphys.veloc;pos.heliocentricfloatnullableUvel? U velocitykm/sphys.velocintnullableVvel? V velocitykm/sphys.velocintnullableWvel? W velocitykm/sphys.velocintnullableSpTypeSpectral typesrc.spTypecharNote[abc] Notes (1)meta.notecharJ/AJ/115/2397/table8Geneva photometry of stars with P[Fe/H]>0recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameHD numbermeta.id;meta.maincharprimaryB2-V1B2-V1 colour indexmagphot.colorfloatgmagg magnitudemagphot.mag;em.opt.RfloatPopPopulation (Young, Old)meta.notecharm2m_2_ metallicity indexmagspect.indexfloatJ/AJ/115/2397/table10Ryan & Lambert (1995AJ....109.2068R) samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSampleSample (NBP, MFF)meta.idcharNameStar namemeta.id;meta.maincharprimaryR-IR-I colour indexmagphot.color;em.opt.R;em.opt.Ifloat(45-48)(45-48) colour indexmagphot.colorfloat(42-45)(42-45) colour indexmagphot.colorfloat(41-42)(41-42) colour indexmagphot.colorfloat(38-42)(38-42) colour indexmagphot.colorfloatE(b-y)(b-y) colour excessmagphot.color.excessfloat(Cm)0Deredenned C_m_ indexmagspect.indexfloatD(45-48)0Deredenned {Delta}(45-48) colour indexmagphot.color;arith.difffloatVamgAbsolute V magnitudemagphys.magAbs;em.optfloatpmRA? Proper motion in right ascensionmas/yrpos.pm;pos.eq.raintnullablepmDE? Proper motion in declinationmas/yrpos.pm;pos.eq.decintnullableRVRadial velocitykm/sphys.veloc;pos.heliocentricfloat(R-I)0Deredenned R-I colour indexmagphot.color;em.opt.R;em.opt.Ifloat(45-48)0Deredenned (45-48) colour indexmagphot.colorfloat(38-42)0Deredenned (38-42) colour indexmagphot.colorfloatP[Fe/H]m1? P[Fe/H] from m_1_ indexSunphys.abund.FefloatnullableP[Fe/H]38? P[Fe/H] from (38-42) indexSunphys.abund.Fefloatnullable[Fe/H]MetallicitySunphys.abund.FefloatMODDistance modulusmagphot.mag.distModfloatUvel? U velocitykm/sphys.velocfloatnullableVvel? V velocitykm/sphys.velocfloatnullableWvel? W velocitykm/sphys.velocfloatnullableSpTypeSpectral typesrc.spTypecharJ/AJ/115/2397/table11NBP (Norris et al., 1985ApJS...58..463N) sample of subgiantsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharprimaryR-IR-I colour indexmagphot.color;em.opt.R;em.opt.Ifloat(45-48)(45-48) colour indexmagphot.colorfloat(42-45)(42-45) colour indexmagphot.colorfloat(41-42)(41-42) colour indexmagphot.colorfloat(38-42)(38-42) colour indexmagphot.colorfloatE(b-y)(b-y) colour excessmagphot.color.excessfloat(Cm)0Deredenned C_m_ indexmagspect.indexfloatD(45-48)0Deredenned {Delta}(45-48) colour indexmagphot.color;arith.difffloat[C1]? [C_1_] indexmagphot.colorfloatnullableVMAGDDODDO absolute V magnitudemagphys.magAbs;em.optfloatVMAG[C1]? [C_1_] absolute V magnitudemagphys.magAbs;em.optfloatnullableNBPNBP ((Norris et al., 1985ApJS...58..463N) numbermeta.idint(R-I)0? Deredenned R-I colour indexmagphot.color;em.opt.R;em.opt.Ifloatnullable(45-48)0? Deredenned (45-48) colour indexmagphot.colorfloatnullable(38-42)0? Deredenned (38-42) colour indexmagphot.colorfloatnullableP[Fe/H]m1? P[Fe/H] from m_1_ indexSunphys.abund.Fefloatnullablen_P[Fe/H]m1[)] Uncertainty flag on P[Fe/H]m1meta.notecharP[Fe/H]DDO? DDO P[Fe/H]Sunphys.abund.Fefloatnullablen_P[Fe/H]DDO[)] Uncertainty flag on P[Fe/H]DDOmeta.notecharMOD? Distance modulusmagphot.mag.distModfloatnullablepmRA? Proper motion in right ascensionmas/yrpos.pm;pos.eq.raintnullablepmDE? Proper motion in declinationmas/yrpos.pm;pos.eq.decintnullableRV? Radial velocitykm/sphys.veloc;pos.heliocentricfloatnullableUvel? U velocitykm/sphys.velocintnullablen_Uvel[)] Uncertainty flag on Uvelmeta.notecharVvel? V velocitykm/sphys.velocintnullablen_Vvel[)] Uncertainty flag on Vvelmeta.notecharWvel? W velocitykm/sphys.velocintnullablen_Wvel[)] Uncertainty flag on Wvelmeta.notecharSpTypeSpectral typesrc.spTypecharNote[abcd*] Note (1)meta.notecharJ/AJ/115/2397/table12Luminosity of evolved stars in Halo groupsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGroup[KR] K: Kapteyn's star group R: Ross 451 groupmeta.notecharNameStar namemeta.id;meta.maincharprimaryE(b-y)(b-y) colour excessmagphot.color.excessfloat(R-I)0? Deredenned R-I colour indexmagphot.color;em.opt.R;em.opt.IfloatnullableD(45-48)0? Deredenned {Delta}(45-48) calculated from [C_1_] indexmagphot.color;arith.difffloatnullablen_D(45-48)0[)d] Note on D(45-48)0 (1)meta.notecharCm0? Deredenned C_m_ indexmagspect.indexfloatnullablen_Cm0[d] Note on Cm0 (1)meta.notecharVMAGpPhotometric absolute V magnitudemagphot.mag;em.opt.Vfloatn_VMAGp[)] Uncertainty flag on VMAGpmeta.notecharVMAGCCluster absolute V magnitudemagphys.magAbs;em.optfloatDVMAG? Photometric minus Cluster absolute V magnitudemagphot.mag;arith.difffloatnullablen_DVMAG[)e] Note on DVMAG (2)meta.notecharVMAGA? ATT (Cat. <J/AJ/107/1577>) absolute V magnitudemagphys.magAbs;em.optfloatnullableNote[abcfghij] Individual note (3)meta.notecharJ/AJ/115/2397/table14DDO photometry of cluster starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintOrigin[OH] O: Old disk, H: halometa.codecharClusterCluster namemeta.id;meta.maincharE(B-V)Cluster B-V colour excessmagphot.color.excessfloatStarStar number in the clustermeta.id.part;meta.maincharCm0Deredenned C_m_ index of the starmagspect.indexfloat(42-48)(42-48) colour index of the starmagphot.colorfloatJ/AJ/115/2397/table15Values of (C_m_)_0_ and P[Fe/H] for red giants in the NBP (Norris et al., 1985ApJS...58..463N) samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNBPNBP (Norris et al., 1985ApJS...58..463N) star numbermeta.id;meta.mainint(42-48)0Deredenned (42-48) colour indexmagphot.colorfloatP[Fe/H]P[Fe/H] indexSunphys.abund.FefloatCm0Deredenned C_m_ indexmagspect.indexfloatNote[)] Uncertainty flag for all the star datameta.codecharJ/AJ/115/2397/table17Stars from a large sample of dwarfs that lie in an otherwise vacant region of the (P[Fe/H], V-velocity)-planerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharprimaryRAB1950Right ascension (B1950.0)pos.eq.ra;meta.mainDEB1950Declination (B1950.0)pos.eq.dec;meta.mainVmagV magnitudemagphot.mag;em.opt.VfloatB-VB-V colour indexmagphot.color;em.opt.B;em.opt.VfloatE(B-V)B-V colour excessmagphot.color.excessfloatP[Fe/H]P[Fe/H] indexSunphys.abund.FefloatVvelV velocitykm/sphys.velocintRef[1/2] References (1)meta.refintJ/AJ/115/2397/table18Stars from table6 with Stroemgren and H{beta} photometry and improved proper motionS[OK] OK: star removed from the zone of avoidancemeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharprimaryE(b-y)b-y colour excessmagphot.color.excessfloatn_E(b-y)[)] Uncertainty flag on E(b-y)meta.notechar(b-y)0Deredenned b-y colour indexmagphot.color;em.opt.B;em.opt.Vfloatn_(b-y)0[)] Uncertainty flag on (b-y)0meta.notecharM10Deredenned M_1_ indexmagphot.magfloatn_M10[)] Uncertainty flag on M10meta.notecharP[Fe/H]P[Fe/H] indexSunphys.abund.FefloatVMAGAbsolute V magnitudemagphys.magAbs;em.optfloatModulusDistance modulusmagphot.mag.distModfloatpmRAProper motion in right ascensionmas/yrpos.pm;pos.eq.raintpmDEProper motion in declinationmas/yrpos.pm;pos.eq.decintRVRadial velocitykm/sphys.veloc;pos.heliocentricfloatUvelU velocitykm/sphys.velocintVvelV velocitykm/sphys.velocintWvelW velocitykm/sphys.velocint