J/other/RAA/21.2ivo://CDS.VizieR/J/other/RAA/21.292doi:10.26093/cds/vizier/dx/cbkcjcCDSWang S.Zhang H.-T.Bai Z.-R.Yuan H.-L.Xiang M.-S.Zhang B.Hou W.,Zuo F.Du B.Li T.-D.Yang F.Cui K.-M.Wang Y.-L.Li J.Kovalev M.,Li C.-Q.Tian H.Zong W.-K.Han H.-G.Liu C.Luo A.-L.Shi J.-R.,Fu J.-N.Bi S.-L.Han Z.-W.Liu J.-F.2026-02-10T20:07:57Z2022-04-20T07:30:46ZCDS support team

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

cds-question@unistra.frsurveysspectroscopic-binary-starsstellar-masseseffective-temperatureradial-velocityvisible-astronomyFrom Oct. 2019 to Apr. 2020, LAMOST performed a time-domain (TD) spectroscopic survey of four K2 plates with both low- and medium-resolution observations. The low-resolution spectroscopic survey acquired 282 exposures (~46.6h) over 25 nights, yielding a total of about 767000 spectra, and the medium-resolution survey took 177 exposures (~49.1h) over 27 nights, collecting about 478000 spectra. More than 70%/50% of low-resolution/medium-resolution spectra have signal-to-noise ratio higher than 10. We determine stellar parameters (e.g., Teff, logg, [Fe/H]) and radial velocity (RV) with different methods, including LASP, DD-Payne and SLAM. In general, these parameter estimations from different methods show good agreement, and the stellar parameter values are consistent with those of APOGEE. We use the Gaia DR2 RV values to calculate a median RV zero point (RVZP) for each spectrograph exposure by exposure, and the RVZP-corrected RVs agree well with the APOGEE data. The stellar evolutionary and spectroscopic masses are estimated based on the stellar parameters, multi-band magnitudes, distances and extinction values. Finally, we construct a binary catalog including about 2700 candidates by analyzing their light curves, fitting the RV data, calculating the binarity parameters from medium-resolution spectra and cross-matching the spatially resolved binary catalog from Gaia EDR3. The LAMOST TD survey is expected to represent a breakthrough in various scientific topics, such as binary systems, stellar activity, stellar pulsation, etc.2021RAA....21..292Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/RAA/21.292CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/RAA/21.292https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/RAA/21.292http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/RAA/21.292https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/RAA/21.292https://vizier.iucaa.in/viz-bin/votable?-source=J/other/RAA/21.292http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/RAA/21.292GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/RAA/21.292/table2 (Mass estimations of the stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RAA/21.292/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/other/RAA/21.292/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RAA/21.292/table2?GETtext/xml+votable180.050000true55.017166723.86666670.005555555555555556Cone search capability for table J/other/RAA/21.292/table3 (Binary candidates of the four K2 plates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RAA/21.292/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/other/RAA/21.292/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RAA/21.292/table3?GETtext/xml+votable180.050000true55.051791723.63419440.005555555555555556Cone search capability for table J/other/RAA/21.292/tablea1 (Stellar parameters and RV from LASP estimation with LRS Data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RAA/21.292/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/other/RAA/21.292/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RAA/21.292/tablea1?GETtext/xml+votable180.050000true55.017223.866680.005555555555555556Cone search capability for table J/other/RAA/21.292/tablea2 (Stellar parameters and RV from LASP estimation with MRS Data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RAA/21.292/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/other/RAA/21.292/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RAA/21.292/tablea2?GETtext/xml+votable180.050000true55.017223.866680.005555555555555556Cone search capability for table J/other/RAA/21.292/tablea3 (Stellar parameters and RV from DD-Payne estimation with LRS Data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RAA/21.292/tablea3?https://vizier.iucaa.in/viz-bin/conesearch/J/other/RAA/21.292/tablea3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RAA/21.292/tablea3?GETtext/xml+votable180.050000true55.017223.866680.005555555555555556Cone search capability for table J/other/RAA/21.292/tablea4 (Stellar parameters and RV from SLAM estimation with MRS Data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/RAA/21.292/tablea4?https://vizier.iucaa.in/viz-bin/conesearch/J/other/RAA/21.292/tablea4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/RAA/21.292/tablea4?GETtext/xml+votable180.050000true55.017223.866680.0055555555555555565/113 115-116 118-119 124 1063 1069 1074 1080 6001-6003 6006 6008-6009 6867 6870 6873 6875-6876 6878 6/367 378-379 451 457 459 468 470-471 484-485 487 500 4246-4247 4249 4251 4273 4275 4281 4284-4285 4287 4290 4302 4324 4326 4328-4330 4332 23965 23967 23989 24001-24003 24018 24044 24048-24050 27465 27467 27486 27489 27491 27497 27508 27510 27516https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/RAA/21.292?format=asciiOpticaldefaultJ/other/RAA/21.292/table2Mass estimations of the starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMgrid? Mass estimation from the MIST gridssolMassphys.massfloatnullablee_Mgrid? Error on Mgrid (lower value)solMassstat.errorfloatnullableE_Mgrid? Error on Mgrid (upper value)solMassstat.error;stat.maxfloatnullableMiso? Mass estimation using the "isochrones" codesolMassphys.massfloatnullablee_Miso? Miso errorsolMassstat.errorfloatnullableDistDistance from Gaia DR2kpcpos.distanceinte_DistError on Dist (lower value)kpcstat.errorintE_DistError on Dist (upper value)kpcstat.error;stat.maxintE(B-V)? Reddening from PS1 dust map, calculated as 0.84xBayesian19magphot.color.excessfloatnullableMbolc? Weighted average value of bolometric magnitudemagphys.magAbs.bolfloatnullablee_Mbolc? Weighted average value of bolometric magnitude errormagstat.errorfloatnullableMspec? Spectroscopic mass estimationsolMassphys.massfloatnullablee_Mspec? Spectroscopic mass estimation errorsolMassstat.errorfloatnullable_RARight ascension (derived from Name) for Eq=J2000degpos.eq.ra;meta.main_DEDeclination (derived from Name) for Eq=J2000degpos.eq.dec;meta.mainNameName (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharJ/other/RAA/21.292/table3Binary candidates of the four K2 platesE_v0? The Joker center of mass velocity error (upper value)km/sstat.error;stat.maxfloatnullablef(M)? The Joker mass functionsolMassphys.massfloatnullableSurveySurveymeta.notecharPlc? Period from light curvedtime.periodfloatnullablePbin? binary>=0.9meta.notefloatnullableClassClass (MSMS, WDMS or MS??)src.classcharSep? Separation between componentsAUpos.angDistanceintnullable_RARight ascension (derived from Name) for Eq=J2000degpos.eq.ra;meta.main_DEDeclination (derived from Name) for Eq=J2000degpos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharPrv? The Joker period from RVdtime.perioddoublenullablee_Prv? The Joker period from RV error (upper value)dstat.errorfloatnullableE_Prv? The Joker period from RV error (upper value)dstat.error;stat.maxfloatnullablee? The Joker eccentricitysrc.orbital.eccentricityfloatnullablee_e? The Joker eccentricity error (lower value)stat.errorfloatnullableE_e? The Joker eccentricity error (upper value)stat.error;stat.maxfloatnullablew? The Joker argument of pericenterradsrc.orbital.periastronfloatnullablee_w? The Joker argument of pericenter error (lower value)radstat.errorfloatnullableE_w? The Joker argument of pericenter error (upper value)radstat.error;stat.maxfloatnullableM0? The Joker mean anomaly at reference timesrc.orbital.meanAnomalyfloatnullablee_M0? The Joker mean anomaly error (lower value)stat.errorfloatnullableE_M0? The Joker mean anomaly error (upper value)stat.error;stat.maxfloatnullableK? The Joker RV semi-amplitudekm/ssrc.var.amplitudefloatnullablee_K? The Joker RV semi-amplitude error (lower value)km/sstat.errorfloatnullableE_K? The Joker RV semi-amplitude error (upper value)km/sstat.error;stat.maxfloatnullablev0? The Joker center of mass velocitykm/sphys.veloc;phys.massfloatnullablee_v0? The Joker center of mass velocity error (lower value)km/sstat.errorfloatnullablee_f(M)? The Joker mass function error (lower value)solMassstat.errorfloatnullableE_f(M)? The Joker mass function error (upper value)solMassstat.error;stat.maxfloatnullableM2min? The Joker minimum mass of the secondarysolMassphys.massfloatnullablee_M2min? The Joker minimum mass of the secondary error (lower value)solMassstat.errorfloatnullableE_M2min? The Joker minimum mass of the secondary error (upper value)solMassstat.error;stat.maxfloatnullableTypeType (EA, EB, EW or RSCVN)src.classcharJ/other/RAA/21.292/tablea1Stellar parameters and RV from LASP estimation with LRS DataSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharFieldField nameobs.fieldcharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainTeffEffective temperatureKphys.temperature.effectiveinte_TeffEffective temperature errorKstat.error;phys.temperature.effectiveintloggSurface gravitylog(cm.s**-2)phys.gravityfloate_loggSurface gravity errorlog(cm.s**-2)stat.errorfloat[Fe/H]Metallicityphys.abund.Zfloate_[Fe/H]Metallicity errorstat.error;phys.abund.FefloatRVRadial velocitykm/sphys.veloc;pos.heliocentricfloate_RVRadial velocity errorkm/sstat.errorfloatRVcorCorrected radial velocitykm/sphys.veloc;pos.heliocentricfloate_RVcorCorrected radial velocity errorkm/sstat.errorfloatJ/other/RAA/21.292/tablea2Stellar parameters and RV from LASP estimation with MRS DataSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharFieldField nameobs.fieldcharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainTeffEffective temperatureKphys.temperature.effectiveinte_TeffEffective temperature errorKstat.error;phys.temperature.effectiveintloggSurface gravitylog(cm.s**-2)phys.gravityfloate_loggSurface gravity errorlog(cm.s**-2)stat.errorfloat[Fe/H]Metallicityphys.abund.Zfloate_[Fe/H]Metallicity errorstat.error;phys.abund.FefloatRVRadial velocitykm/sphys.veloc;pos.heliocentricfloate_RVRadial velocity errorkm/sstat.errorfloatRVcorCorrected radial velocitykm/sphys.veloc;pos.heliocentricfloate_RVcorCorrected radial velocity errorkm/sstat.errorfloatJ/other/RAA/21.292/tablea3Stellar parameters and RV from DD-Payne estimation with LRS DataSimbadSimbad column added by the CDSmeta.ref.urlchare_TeffEffective temperature errorKstat.error;phys.temperature.effectiveintloggSurface gravitylog(cm.s**-2)phys.gravityfloate_loggSurface gravity errorlog(cm.s**-2)stat.errorfloat[Fe/H]Metallicityphys.abund.Zfloate_[Fe/H]Metallicity errorstat.error;phys.abund.FefloatRVRadial velocitykm/sphys.veloc;pos.heliocentricfloate_RVRadial velocity errorkm/sstat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharFieldField nameobs.fieldcharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainTeffEffective temperatureKphys.temperature.effectiveintRVcorCorrected radial velocitykm/sphys.veloc;pos.heliocentricfloate_RVcorCorrected radial velocity errorkm/sstat.errorfloatJ/other/RAA/21.292/tablea4Stellar parameters and RV from SLAM estimation with MRS DataSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharFieldField nameobs.fieldcharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainTeffEffective temperatureKphys.temperature.effectiveinte_TeffEffective temperature errorKstat.error;phys.temperature.effectiveintloggSurface gravitylog(cm.s**-2)phys.gravityfloate_loggSurface gravity errorlog(cm.s**-2)stat.errorfloat[Fe/H]Metallicityphys.abund.Zfloate_[Fe/H]Metallicity errorstat.error;phys.abund.FefloatRVRadial velocitykm/sphys.veloc;pos.heliocentricfloate_RVRadial velocity errorkm/sstat.errorfloatRVcorCorrected radial velocitykm/sphys.veloc;pos.heliocentricfloate_RVcorCorrected radial velocity errorkm/sstat.errorfloat