V/153ivo://CDS.VizieR/V/153CDSLuo A.-L.Zhao Y.-H.Zhao G.et al.2019-11-22T16:13:43Z2018-09-06T14:54:36ZCDS support team

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

cds-question@unistra.frsurveysspectroscopyphotometryThe Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) is a Chinese national scientific research facility operated by the National Astronomical Observatories, Chinese Academy of Sciences. It is a special reflecting Schmidt telescope with 4000 fibers in a field of view of 20 deg22in the sky. Until July 2016, LAMOST has completed its pilot survey which was launched in October 2011 and ended in June 2012, and the first four years of regular survey which was initiated on September 2012. After this five-year-survey, we totally obtain 7,617,035 spectra, which consist of stars, galaxies, quasars and other unknown objects. Now, the fourth data release (DR4) has published online (http://dr4.lamost.org/), and released data products include 1. Spectra. - In general, there are 7,617,035 flux- and wavelength-calibrated, sky-subtracted spectra in DR4, including 6,943,865 stars, 117,254 galaxies, 36,575 quasars, and 519,341 unknown objects, and these spectra cover the wavelength range of 3690-9100 angstrom with a resolution of 1800 at the 5500 angstrom. 2. Spectroscopic Parameters Catalogs. - In this data release, six spectroscopic parameters catalogs are also published, they are the LAMOST general catalog, the A, F, G and K type star catalog, the A type star catalog, the M dwarf catalog, the observed plate information catalog, and the input catalog respectively. For the first four catalogs, they all include 36 columns of basic spectroscopic information, for example, right ascension, declination, signal to noise ratio, magnitude, classification and redshift. Also, the A type star catalog publish line indices of six spectral lines and four balmer line widths at 20% below the local continua, the A, F, G and K type star catalog provides effective temperature, surface gravity, and metallicity, and the M dwarf catalog releases the equivalent width of Halpha line, ten line indices, one metallicity sensitive parameter and a flag that indicates whether or not exist magnetic activity. For the observed plate information catalog, it mainly contains nine basic plate information for all published plates. At last, the input catalog includes 24 basic fields mentioned above, and three new fields which are not included in the above catalogs.2018RAA..in.prep..Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/V/153CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/146 : LAMOST DR1 catalogs (Luo+, 2015)V/149 : LAMOST DR2 catalogs (Luo+, 2016)http://dr4.lamost.org : LAMOST DR4 Home Pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=V/153https://vizier.iucaa.in/viz-bin/VizieR-2?-source=V/153http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=V/153https://vizier.cds.unistra.fr/viz-bin/votable?-source=V/153https://vizier.iucaa.in/viz-bin/votable?-source=V/153http://vizieridia.saao.ac.za/viz-bin/votable?-source=V/153GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table V/153/stellar4 (A, F, G and K type stars catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/V/153/stellar4?https://vizier.iucaa.in/viz-bin/conesearch/V/153/stellar4?http://vizieridia.saao.ac.za/viz-bin/conesearch/V/153/stellar4?GETtext/xml+votable180.050000true332.202274-2.0567670.005555555555555556Cone search capability for table V/153/astars4 (A type stars catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/V/153/astars4?https://vizier.iucaa.in/viz-bin/conesearch/V/153/astars4?http://vizieridia.saao.ac.za/viz-bin/conesearch/V/153/astars4?GETtext/xml+votable180.050000true332.342782-1.9191920.005555555555555556Cone search capability for table V/153/mstars4 (M type stars catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/V/153/mstars4?https://vizier.iucaa.in/viz-bin/conesearch/V/153/mstars4?http://vizieridia.saao.ac.za/viz-bin/conesearch/V/153/mstars4?GETtext/xml+votable180.050000true331.812125-1.7637960.005555555555555556Cone search capability for table V/153/dr4 (LAMOST DR4 catalog (09/08/2018 version))https://vizier.cds.unistra.fr/viz-bin/conesearch/V/153/dr4?https://vizier.iucaa.in/viz-bin/conesearch/V/153/dr4?http://vizieridia.saao.ac.za/viz-bin/conesearch/V/153/dr4?GETtext/xml+votable180.050000true332.202274-2.0567670.005555555555555556Cone search capability for table V/153/dr4_plan (Observed plate information catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/V/153/dr4_plan?https://vizier.iucaa.in/viz-bin/conesearch/V/153/dr4_plan?http://vizieridia.saao.ac.za/viz-bin/conesearch/V/153/dr4_plan?GETtext/xml+votable180.050000true332.1686860.33804070.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=V/1532/1 4 6 16 18 19 20 22 24 26 33 35 40 85 93 94 95 109 3/0 1 9 12 13 14 20 21 23 28 29 32 34 35 37 38 39 40 41 42 44 48 50 68 71 84 85 93 94 101 103 108 109 110 112 113 128 129 136 137 138 144 145 146 150 151 153 157 164 168 171 174 209 233 277 295 297 299 300 311 315 317 318 319 345 347 348 350 351 361 362 363 367 371 406 413 415 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stars catalogTeffEffective temperatureKphys.temperature.effectivefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsID[101001/462816247] Observation IDmeta.idlongTargetTarget Designation (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharObsDateTarget Observation Datetime.epoch;obsnullableLMJD[55859/57542] Local Modified Julian Daydtime.epochintMJD[55858/57541] Modified Julian Daydtime.epochintPlanIdPlan Nameobs.fieldcharspId[1/16] Spectrograph IDmeta.id;instrintFiberId[1/250] Fiber IDmeta.idintRAJ2000Fiber pointing right Ascension (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Fiber pointing declination (J2000)degpos.eq.dec;meta.mainindexedsnruSignal Noise Ratio of u filterstat.snrfloatsnrgSignal Noise Ratio of g filterstat.snrfloatsnrrSignal Noise Ratio of r filterstat.snrfloatsnriSignal Noise Ratio of i filterstat.snrfloatsnrzSignal Noise Ratio of z filterstat.snrfloatobjTypeObject Typesrc.classcharClassStellar Classsrc.classcharSubClassStellar Sub-Classsrc.classcharzRedshiftsrc.redshiftdoublee_z[] rms uncertainty on zstat.error;src.redshiftdoublemagTypeTarget Magnitude Typemeta.notecharmag1? Magnitude in band 1 of magTypemagphot.magfloatnullablemag2? Magnitude in band 2 of magTypemagphot.magfloatnullablemag3? Magnitude in band 3 of magTypemagphot.magfloatnullablemag4? Magnitude in band 4 of magTypemagphot.magfloatnullablemag5? Magnitude in band 5 of magTypemagphot.magfloatnullablemag6? Magnitude in band 6 of magTypemagphot.magfloatnullablemag7? Magnitude in band 7 of magTypemagphot.magfloatnullabletsourceOrganization or person who submits input catalogmeta.curationcharFiberTypeFiber Type of target (Obj, Sky, F-std, Unused, PosErr, Dead)meta.notechartfromInput catalog submitted by an organization or a person determined by the tsourceobs.observerchartInfoTarget ID from SDSS, UCAC4, PANSTAR and other cataloguemeta.bibcharn_offset[0/1] Whether there is a fiber offset during observationmeta.noteintoffsetIf offset is true, it gives the offset distance from the target's coordinator in input catalogarcsecpos.angDistance;arith.difffloatRA1degRight ascension from input catalog (J2000)degpos.eq.raDE1degDeclination from input catalog (J2000)degpos.eq.dece_Teff? Uncertainty of Effective temperatureKstat.error;phys.temperature.effectivedoublenullableloggSurface gravitylog(cm.s**-2)phys.gravityfloate_logg? Uncertainty of Surface gravitylog(cm.s**-2)stat.errordoublenullable[Fe/H]Metallicityphys.abund.Zfloate_[Fe/H]? Uncertainty of Metallicitystat.error;phys.abund.FedoublenullableHRV? Heliocentric Radial Velocitykm/sspect.dopplerVeloc;pos.heliocentricfloatnullablee_HRV? Uncertainty of Heliocentric Radial Velocitykm/sstat.errordoublenullableV/153/astars4A type stars catalogPlanIdPlan Nameobs.fieldcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsID[101006/462816238] Observation IDmeta.idlongTargetTarget Designation (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharObsDateTarget Observation Datetime.epoch;obsnullableLMJD[55859/57542] Local Modified Julian Daydtime.epochintMJD[55858/57541] Modified Julian Daydtime.epochintspId[1/16] Spectrograph IDmeta.id;instrintFiberId[1/250] Fiber IDmeta.idintRAJ2000Fiber pointing right Ascension (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Fiber pointing declination (J2000)degpos.eq.dec;meta.mainindexedsnru? Signal Noise Ratio of u filterstat.snrfloatnullablesnrg? Signal Noise Ratio of g filterstat.snrfloatnullablesnrr? Signal Noise Ratio of r filterstat.snrfloatnullablesnri? Signal Noise Ratio of i filterstat.snrfloatnullablesnrz? Signal Noise Ratio of z filterstat.snrfloatnullableobjTypeObject Typesrc.classcharClassStellar Classsrc.classcharSubClassStellar Sub-Classsrc.classcharz? Redshiftsrc.redshiftdoublenullablee_z[]? rms uncertainty on zstat.error;src.redshiftdoublenullablemagTypeTarget Magnitude Typemeta.notecharmag1? Magnitude in band 1 of magTypemagphot.magfloatnullablemag2? Magnitude in band 2 of magTypemagphot.magfloatnullablemag3? Magnitude in band 3 of magTypemagphot.magfloatnullablemag4? Magnitude in band 4 of magTypemagphot.magfloatnullablemag5? Magnitude in band 5 of magTypemagphot.magfloatnullablemag6? Magnitude in band 6 of magTypemagphot.magfloatnullablemag7? Magnitude in band 7 of magTypemagphot.magfloatnullabletsourceOrganization or person who submits input catalogmeta.curationcharFiberTypeFiber Type of target (Obj, Sky, F-std, Unused, PosErr, Dead)meta.notechartfromInput catalog submitted by an organization or a person determined by the tsourceobs.observerchartInfoTarget ID from SDSS, UCAC4, PANSTAR and other cataloguemeta.bibcharn_offset[0/1] Whether there is a fiber offset during observationmeta.noteintoffsetIf offset is true, it gives the offset distance from the target's coordinator in input catalogarcsecpos.angDistance;arith.difffloatRA1degRight ascension from input catalog (J2000)pos.eq.raDE1degDeclination from input catalog (J2000)pos.eq.decKP12? Ca II K line index with band widths of 12{AA}0.1nmspect.indexdoublenullableKP18? Ca II K line index with band widths of 18{AA}0.1nmspect.indexdoublenullableKP6? Ca II K line index with band widths of 6{AA}0.1nmspect.indexdoublenullableHdelta12? Hdelta Line Index with band widths of 12{AA}0.1nmspect.indexdoublenullableHdelta24? Hdelta Line Index with band widths of 24{AA}0.1nmspect.indexdoublenullableHdelta48? Hdelta Line Index with band widths of 48{AA}0.1nmspect.indexdoublenullableHdelta62? Hdelta Line Index with band widths of 62{AA}0.1nmspect.indexdoublenullableHgamma12? Hgamma Line Index with band widths of 12{AA}0.1nmspect.index;em.line.HgammadoublenullableHgamma24? Hgamma Line Index with band widths of 24{AA}0.1nmspect.index;em.line.HgammadoublenullableHgamma48? Hgamma Line Index with band widths of 48{AA}0.1nmspect.index;em.line.HgammadoublenullableHgamma54? Hgamma Line Index with band widths of 54{AA}0.1nmspect.index;em.line.HgammadoublenullableHbeta12? Hbeta Line Index with band widths of 12{AA}0.1nmspect.index;em.line.HbetadoublenullableHbeta24? Hbeta Line Index with band widths of 24{AA}0.1nmspect.index;em.line.HbetadoublenullableHbeta48? Hbeta Line Index with band widths of 48{AA}0.1nmspect.index;em.line.HbetadoublenullableHbeta60? Hbeta Line Index with band widths of 60{AA}0.1nmspect.index;em.line.HbetadoublenullableHalpha12? Halpha Line Index with band widths of 12{AA}0.1nmspect.index;em.line.HalphadoublenullableHalpha24? Halpha Line Index with band widths of 24{AA}0.1nmspect.index;em.line.HalphadoublenullableHalpha48? Halpha Line Index with band widths of 48{AA}0.1nmspect.index;em.line.HalphadoublenullableHalpha70? Halpha Line Index with band widths of 70{AA}0.1nmspect.index;em.line.HalphadoublenullablePa13? Paschen line index from local continuum at 8467.5 with band widths of 13.0{AA}0.1nmspect.indexdoublenullablePa142? Paschen line index from local continuum at 8598.0 with band widths of 42.0{AA}0.1nmspect.indexdoublenullablePa242? Paschen line index from local continuum at 8751.0 with band widths of 42.0{AA}0.1nmspect.indexdoublenullableHaD0.2? Width at 20% below the local continuum of Halpha line0.1nmspect.line.widthdoublenullableHbD0.2? Width at 20% below the local continuum of beta line0.1nmspect.line.widthdoublenullableHgD0.2? Width at 20% below the local continuum of Hgamma line0.1nmspect.line.widthdoublenullableHdD0.2? Width at 20% below the local continuum of Hdelta line0.1nmspect.line.widthdoublenullableV/153/mstars4M type stars catalogObsID[101050/462815158] Observation IDmeta.idlongPlanIdPlan Nameobs.fieldcharMA? Magnetic activitymeta.codedoublenullableNA? Line index of Na Line0.1nmspect.indexdoublenullableDE1degDeclination from input catalog (J2000)pos.eq.decrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTargetTarget Designation (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharObsDateTarget Observation Datetime.epoch;obsnullableLMJD[55859/57542] Local Modified Julian Daydtime.epochintMJD[55858/57541] Modified Julian Daydtime.epochintspId[1/16] Spectrograph IDmeta.id;instrintFiberId[1/250] Fiber IDmeta.idintRAJ2000Fiber pointing right Ascension (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Fiber pointing declination (J2000)degpos.eq.dec;meta.mainindexedsnru? Signal Noise Ratio of u filterstat.snrfloatnullablesnrg? Signal Noise Ratio of g filterstat.snrfloatnullablesnrr? Signal Noise Ratio of r filterstat.snrfloatnullablesnri? Signal Noise Ratio of i filterstat.snrfloatnullablesnrz? Signal Noise Ratio of z filterstat.snrfloatnullableobjTypeObject Typesrc.classcharClassStellar Classsrc.classcharSubClassStellar Sub-Classsrc.classcharz? Redshiftsrc.redshiftdoublenullablee_z[]? rms uncertainty on zstat.error;src.redshiftdoublenullablemagTypeTarget Magnitude Typemeta.notecharmag1? Magnitude in band 1 of magTypemagphot.magfloatnullablemag2? Magnitude in band 2 of magTypemagphot.magfloatnullablemag3? Magnitude in band 3 of magTypemagphot.magfloatnullablemag4? Magnitude in band 4 of magTypemagphot.magfloatnullablemag5? Magnitude in band 5 of magTypemagphot.magfloatnullablemag6? Magnitude in band 6 of magTypemagphot.magfloatnullablemag7? Magnitude in band 7 of magTypemagphot.magfloatnullabletsourceOrganization or person who submits input catalogmeta.curationcharFiberTypeFiber Type of target (Obj, Sky, F-std, Unused, PosErr, Dead)meta.notechartfromInput catalog submitted by an organization or a person determined by the tsourceobs.observerchartInfoTarget ID from SDSS, UCAC4, PANSTAR and other cataloguemeta.bibcharn_offset[0/1] Whether there is a fiber offset during observationmeta.noteintoffsetIf offset is true, it gives the offset distance from the target's coordinator in input catalogarcsecpos.angDistance;arith.difffloatRA1degRight ascension from input catalog (J2000)pos.eq.raEWHa? Halpha equivalent width0.1nmspect.line.eqWidth;em.line.Halphadoublenullablee_EWHa? rms uncertainty on EWHa0.1nmstat.errordoublenullableTiO5? Spectral index of TiO5spect.indexdoublenullableCaH2? Spectral index of CaH2spect.indexdoublenullableCaH3? Spectral index of CaH3spect.indexdoublenullableTiO1? Spectral index of TiO1spect.indexdoublenullableTiO2? Spectral index of TiO2spect.indexdoublenullableTiO3? Spectral index of TiO3spect.indexdoublenullableTiO4? Spectral index of TiO4spect.indexdoublenullableCaH1? Spectral index of CaH1spect.indexdoublenullableCaOH? Spectral index of CaOHspect.indexdoublenullablee_TiO5? rms uncertainty on TiO5stat.errordoublenullablee_CaH2? rms uncertainty on CaH2stat.errordoublenullablee_CaH3? rms uncertainty on CaH3stat.errordoublenullablee_TiO1? rms uncertainty on TiO1stat.errordoublenullablee_TiO2? rms uncertainty on TiO2stat.errordoublenullablee_TiO3? rms uncertainty on TiO3stat.errordoublenullablee_TiO4? rms uncertainty on TiO4stat.errordoublenullablee_CaH1? rms uncertainty on CAH1stat.errordoublenullablee_CaOH? rms uncertainty on CaOHstat.errordoublenullablezeta? Metallicity sensitive parameterphys.abund.Zdoublenullablee_zeta? rms uncertainty on zetastat.errordoublenullableV/153/dr4LAMOST DR4 catalog (09/08/2018 version)PlanIdPlan Nameobs.fieldcharspShow the spectrummeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsID[101001/462816250] Observation IDmeta.idlongTargetTarget Designation (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharindexedObs.DateTarget Observation Datetime.epoch;obsnullableLMJD[55859/57542] Local Modified Julian Daytime.epochintMJD[55858/57541] Modified Julian Daytime.epochintspId[1/16] Spectrograph IDmeta.id;instrintFiberId[1/250] Fiber IDmeta.idintRAJ2000Fiber pointing right ascension (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Fiber pointing declination (J2000)degpos.eq.dec;meta.mainindexedsnru? Signal Noise Ratio of u filterstat.snrfloatnullablesnrg? Signal Noise Ratio of g filterstat.snrfloatnullablesnrr? Signal Noise Ratio of r filterstat.snrfloatnullablesnri? Signal Noise Ratio of i filterstat.snrfloatnullablesnrz? Signal Noise Ratio of z filterstat.snrfloatnullableobjTypeObject Typesrc.classcharClassSpectra Typesrc.classcharSubClassStellar Sub-Classsrc.classcharz? Redshiftsrc.redshiftdoublenullablee_z[]? rms uncertainty on zstat.error;src.redshiftdoublenullablemagTypeTarget Magnitude Typemeta.notecharmag1? Magnitude in Band 1 of magTypephot.magfloatnullablemag2? Magnitude in Band 2 of magTypephot.magfloatnullablemag3? Magnitude in Band 3 of magTypephot.magfloatnullablemag4? Magnitude in Band 4 of magTypephot.magfloatnullablemag5? Magnitude in Band 5 of magTypephot.magfloatnullablemag6? Magnitude in Band 6 of magTypephot.magfloatnullablemag7? Magnitude in Band 7 of magTypephot.magfloatnullabletsourceOrganization or person who submits input catalogmeta.curationcharFiberTypeFiber Type of target (Obj, Sky, F-std, Unused, PosErr, Dead)meta.notechartfromInput catalog submitted by an organization or a person determined by the tsourceobs.observerchartInfoTarget ID from SDSS, UCAC4, PANSTAR and other cataloguemeta.bibcharn_offset[0/1] Whether there is a fiber offset during observationmeta.noteintoffset[0/99] If offset is true, it gives the offset distance from the target's coordinator in input catalogarcsecpos.angDistance;arith.difffloatRA1degRigth ascension from input catalog (J2000)pos.eq.raDE1degDeclination from input catalog (J2000)pos.eq.decAssocDataAssociated Data web pagemeta.ref.urlcharFileNameFITS files namemeta.idcharV/153/dr4_planObserved plate information catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPlateIdPlate IDmeta.id;instr.plateintObsDateTarget Observation Datetime.epoch;obsnullablePlanIdPlan Nameobs.fieldcharRA1Right Ascension of center star (J2000)degpos.eq.ra;meta.mainDE1Declination of center star (J2000)degpos.eq.dec;meta.mainmag1Magnitude of the first exposuremagphot.magfloatSeeingSeeing of the first exposureinstr.obsty.seeing;obs.exposurefloatExpTimeThe total exposure time of n time exposuresstime.duration;obs.exposurecharMJMModified Julian Minute at the start time of each platemintime.epochint