J/MNRAS/466/1290ivo://CDS.VizieR/J/MNRAS/466/1290doi:10.26093/cds/vizier.74661290CDSNemec J.M.Balona L.A.Murphy S.J.Kinemuchi K.Jeon Y.-B.2024-08-17T20:17:36Z2019-11-12T15:15:06ZCDS support team

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

cds-question@unistra.frvariable-starsradial-velocityphotometrymorgan-keenan-classificationA spectroscopic and photometric analysis has been carried out for 32 candidate SX Phe variable blue straggler stars in the Kepler field. Radial velocities (RVs), space motions (U, V, W), projected rotation velocities (vsini), spectral types and atmospheric characteristics (T_eff_, logg, [Fe/H], {xi}_t_, {zeta}_RT_, etc.) are presented for 30 of the 32 stars. Although several stars are metal-weak with extreme halo orbits, the mean [Fe/H] of the sample is near-solar, thus the stars are more metal-rich than expected for a typical sample of Pop. II stars and more like halo metal-rich A-type stars. Two-thirds of the stars are fast rotators with vsini>50km/s^, including four stars with vsini>200km/s. Three of the stars have (negative) RVs>250km/s^, five have retrograde space motions and 21 have total speeds (relative to the Local Standard of Rest) >400km/s. All but one of the 30 stars have positions in a Toomre diagram consistent with the kinematics of bona fide halo stars (the exception being a thick-disc star). Observed Romer time delays, pulsation frequency modulations and light curves suggest that at least one-third of the stars are in binary (or triple) systems with orbital periods ranging from 2.3d to more than four years.2017MNRAS.466.1290Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/466/1290CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/466/1290https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/466/1290http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/466/1290https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/466/1290https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/466/1290http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/466/1290GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/466/1290/table2 (Locations and kinematics for the 34 SX Phe candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/466/1290/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/466/1290/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/466/1290/table2?GETtext/xml+votable180.050000true291.22372336.887290.005555555555555556Cone search capability for table J/MNRAS/466/1290/table3 (Spectral types, luminosity classes, mean projected rotational velocities, and mean radial-tangential macroturbulent velocities)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/466/1290/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/466/1290/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/466/1290/table3?GETtext/xml+votable180.050000true291.319416737.28967780.0055555555555555566/14567 14578 14581 14583 14591 14733-14734 14751 14754 14757 14759-14760 14762 14765 14770 14776 14782 14792 14794 14824 14827 14923 14933 14939 14972 15041 15043 15106 15150 15154 151593.322582951404819e-19 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/466/1290?format=asciiOpticaldefaultJ/MNRAS/466/1290/table1Summary of CFHT and APO spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNoteNote (1)meta.notecharNameKIC/HD namemeta.id;meta.maincharSpSpectrum number (CFHT or APO)meta.idcharObsUTC mid-exposure datestime.epochnullableBJDMid-exposure barycentric Julian Daydtime.epochdoubleExpTimeExposure timestime.duration;obs.exposureintS/NSignal-to-noise ratiostat.snrintAMAirmass at the mid-time of the observationobs.airMassfloatBRVBarycentric radial velocity (2)km/sphys.veloc;pos.barycenterfloate_BRVrms uncertainty on BRVkm/sstat.errorfloatl_vsiniLimit flag on vsinimeta.code.error;phys.veloc.rotatcharvsini? Projected equatorial velocity (2)km/sphys.velocfloatnullablee_vsini? rms uncertainty on vsinikm/sstat.error;phys.veloc.rotatfloatnullableFlagNotemeta.code.errorcharJ/MNRAS/466/1290/table2Locations and kinematics for the 34 SX Phe candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKICKIC star numbermeta.id;meta.mainintCFHT? CFHT star numbermeta.idintnullablen_CFHTUncertainty flag on CFHTmeta.notecharGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latE(B-V)KIC? KIC reddeningmagphot.color.excessfloatnullableE(B-V)New reddeningmagphot.color.excessfloatdKIC? KIC distancepcpos.distanceintnullabledNew distancepcpos.distanceintzKIC? KIC height above the Galactic planepcpos.cartesian.z;pos.galacticintnullablezNew height above the Galactic planepcpos.cartesian.z;pos.galacticint<RV>? Mean radial velocitykm/sspect.dopplerVeloc;stat.meanfloatnullablee_<RV>? rms uncertainty on <RV>km/sstat.errorfloatnullableo_<RV>? Number of measured spectrameta.numberintnullablen_<RV>[*] * for binary systems, systemic radial velocity in <RV>meta.notecharUvel? Space motion, U, relative to the LSRkm/sphys.veloc;pos.cartesian.xintnullableVvel? Space motion, V, relative to the LSRkm/sphys.veloc;pos.cartesian.yintnullableWvel? Space motion, W, relative to the LSRkm/sphys.veloc;pos.cartesian.zintnullableTvel? Total space motion, relative to the LSRkm/sphys.velocintnullable_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)degpos.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)degpos.eq.decnullableindexedJ/MNRAS/466/1290/table3Spectral types, luminosity classes, mean projected rotational velocities, and mean radial-tangential macroturbulent velocitiesKICKIC star numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCFHT? CFHT star numbermeta.idintnullablen_CFHTUncertainty flag on CFHTmeta.notecharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainSpTypeKSpectral type based on the K-linesrc.spTypecharSpTypeHSpectral type based on hydrogen linessrc.spTypecharSpTypeMSpectral type based on metal linessrc.spTypecharLumLuminosity classsrc.class.luminositycharl_<vsini>FTLimit flag on <vsini>FTmeta.code.error;phys.veloc.rotatchar<vsini>FTWeighted average of the vsini values given in Table 1km/sphys.veloc.rotatfloate_<vsini>FTrms uncertainty on <vsini>FTkm/sstat.error;phys.veloc.rotatfloato_<vsini>FTNumber of spectra measuredmeta.numberintl_<vsini>GOFLimit flag on <vsini>GOFmeta.code.error;phys.veloc.rotatchar<vsini>GOF? Mean vsini values derived using the goodness-of-fit methodkm/sphys.veloc.rotatintnullablee_<vsini>GOF? rms uncertainty on <vsini>GOFkm/sstat.error;phys.veloc.rotatintnullable<zetaRT>? Average radial-tangential macroturbulent velocity, {zeta}_RT_. derived using the goodness-of-fit methodkm/sphys.veloc.transverseintnullablee_<zetaRT>? rms uncertainty on <zetaRT>km/sstat.errorintnullableo_<zetaRT>? number of lines that were measuredmeta.numberintnullableJ/MNRAS/466/1290/table4Atmospheric characteristics for 32 of the 34 candidate SX Phe stars in the Kepler fieldCFHT? CFHT star numbermeta.idintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKICKIC star numbermeta.id;meta.mainintn_CFHTUncertainty flag on CFHTmeta.notecharloggKIC? KIC surface gravity (SME estimate)log(cm.s**-2)phys.gravityfloatnullableloggH14H14 surface gravity (VWA/MOOG estimates based on the EW/COG method) (1)log(cm.s**-2)phys.gravityfloatloggThis paper surface gravitylog(cm.s**-2)meta.bibfloate_logg? rms uncertainty on logglog(cm.s**-2)stat.errorfloatnullablen_logg[)] Flag for assumed or uncertainty value of loggmeta.notecharTeffKIC? KIC Effective temperature (SME estimate)Kphys.temperature.effectiveintnullableTeffH14? H14 Effective temperature (VWA/MOOG estimates based on the EW/COG method) (1)Kphys.temperature.effectiveintnullableTeffThis paper Effective temperatureKphys.temperature.effectiveinte_Teffrms uncertainty on TeffKstat.error;phys.temperature.effectiveintxitThis paper microturbulent velocitykm/smeta.bib;phys.velocfloate_xitrms uncertainty on xitkm/sstat.errorfloatn_xit[)] Flag for assumed or uncertainty value of xitmeta.notechar[Fe/H]KIC? KIC metal abundance (SME estimate)phys.abund.Zfloatnullable[Fe/H]H14? H14 metal abundance (VWA/MOOG estimates based on the EW/COG method) (1)phys.abund.Zfloatnullable[Fe/H]This paper metal abundancemeta.bibfloate_[Fe/H]? rms uncertainty on [Fe/H]stat.error;phys.abund.Fefloatnullablen_[Fe/H][)] Uncertainty flag on [Fe/H]meta.notecharJ/MNRAS/466/1290/table5Mean magnitudes and colours for the Kepler-field SX Phe candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKICKIC star numbermeta.id;meta.mainintCFHT? CFHT star numbermeta.idintnullablen_CFHTUncertainty flag on CFHTmeta.notecharKpmag? Kepler magnitudemagphot.mag;em.optfloatnullablen_Vmag[n] n if new observation (1)meta.notecharVmag? E12 V magnitude (2)magphot.mag;em.opt.Vfloatnullablen_B-V[n] n if new observation (1)meta.notecharB-V? E12 B-V colour index (2)magphot.color;em.opt.B;em.opt.Vfloatnullablen_U-B[n] n if new observation (1)meta.notecharU-B? E12 U-B colour index (2)magphot.color;em.opt.U;em.opt.Bfloatnullablen_(B-V)0K[n] n if new observation (1)meta.notechar(B-V)0K? KIC dereddened B-V colour indexmagphot.color;em.opt.B;em.opt.Vfloatnullablen_(B-V)0n[n] n if new observation (1)meta.notechar(B-V)0n? New dereddened B-V colour indexmagphot.color;em.opt.B;em.opt.Vfloatnullablen_(U-B)0K[n] n if new observation (1)meta.notechar(U-B)0K? KIC dereddened U-B colour indexmagphot.color;em.opt.B;em.opt.Vfloatnullablen_(U-B)0n[n] n if new observation (1)meta.notechar(U-B)0n? New dereddened U-B colour indexmagphot.color;em.opt.B;em.opt.Vfloatnullableg-rKIC? KIC g-r colour indexmagphot.color;em.opt.B;em.opt.Rfloatnullableg-rKIS? Kepler-INT Survey g-r colour indexmagphot.color;em.opt.B;em.opt.Rfloatnullabler-i? KIC r-i colour indexmagphot.color;em.opt.R;em.opt.IfloatnullableH-K? KIC H-K colour indexmagphot.color;em.IR.H;em.IR.KfloatnullableJ-K? KIC J-K colour indexmagphot.color;em.IR.J;em.IR.KfloatnullablekicDisplay the KIC (Cat. V/133) datameta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar