J/AJ/156/126ivo://CDS.VizieR/J/AJ/156/126doi:10.26093/cds/vizier.51560126CDSJonsson H.Prieto C.A.Holtzman J.A.Feuillet D.K.Hawkins K.Cunha K.,Meszaros S.Hasselquist S.Fernandez-Trincado J.G.Garcia-Hernandez D.A.,Bizyaev D.Carrera R.Majewski S.R.Pinsonneault M.H.Shetrone M.,Smith V.Sobeck J.Souto D.Stringfellow G.S.Teske J.Zamora O.2019-03-25T13:48:15Z2019-03-14T13:14:12ZCDS support team

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

cds-question@unistra.frdwarf-starsgiant-starschemical-abundanceseffective-temperatureastronomical-modelsData from the SDSS-IV/Apache Point Observatory Galactic Evolution Experiment (APOGEE-2) have been released as part of SDSS Data Releases 13 (DR13) and 14 (DR14). These include high-resolution H-band spectra, radial velocities, and derived stellar parameters and abundances. DR13, released in 2016 August, contained APOGEE data for roughly 150000 stars, and DR14, released in 2017 August, added about 110000 more. Stellar parameters and abundances have been derived with an automated pipeline, the APOGEE Stellar Parameter and Chemical Abundance Pipeline (ASPCAP). We evaluate the performance of this pipeline by comparing the derived stellar parameters and abundances to those inferred from optical spectra and analysis for several hundred stars. For most elements - C, Na, Mg, Al, Si, S, Ca, Cr, Mn, Ni - the DR14 ASPCAP analyses have systematic differences with the comparisons samples of less than 0.05 dex (median), and random differences of less than 0.15 dex (standard deviation). These differences are a combination of the uncertainties in both the comparison samples as well as the ASPCAP analysis. Compared to the references, magnesium is the most accurate alpha-element derived by ASPCAP, and shows a very clear thin/thick disk separation, while nickel is the most accurate iron-peak element (besides iron itself).2018AJ....156..126Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/156/126CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)J/AJ/146/133 : Stellar parameters from SDSS-III APOGEE DR10 (Meszaros+, 2013)J/ApJ/794/125 : IN-SYNC. I. APOGEE stellar parameters (Cottaar+, 2014)J/AJ/151/144 : ASPCAP weights for the 15 APOGEE chemical elementsJ/ApJ/852/50 : Galactic halo with APOGEE. II. Abundances.https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/156/126https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/156/126http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/156/126https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/156/126https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/156/126http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/156/126GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/156/126/table3 (Stellar parameters and abundances from the BACCHUS analysis)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/156/126/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/156/126/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/156/126/table3?GETtext/xml+votable180.050000true0.083914456.21024970.0055555555555555565/1019 7120 6/1013 1388 1427 1432 1475 1696 1698 1718 1776 1959 1971 1979 2034 2035 2522 2545 2547 2980 2990 2991 2992 3059 3239 3634 4036 4073 4075 4090 4253 4320 4781 4782 5084 5105 5676 5679 6145 6151 6363 6364 6365 6378 6403 6721 8767 9209 9358 10293 10484 10663 10672 12405 13756 13800 14971 15121 15147 19089 21486 22142 22177 22182 22208 22212 22236 22243 22252 22253 22313 22315 22372 22375 24246 24438 25875 25880 27633 27635 27636 27643 27895 31393https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/156/126?format=asciidefaultJ/AJ/156/126/table1The line data used in the BACCHUS analysisrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintElElementphys.atmol.elementcharWave[4981.7305/8773.896] Wavelength ({AA})0.1nmem.wldoubleloggf[-9.715/0.57] Log of the oscillator strength times the statistical weight of the lower energy levelstat.weight;phys.atmol.oscStrength;phys.atmol.levelfloatElow[0/14.677] Lower excitation energy leveleVphys.energy;phys.atmol.excitationfloatJ/AJ/156/126/table2Line-to-line abundances from the BACCHUS analysisrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2MASS2MASS position based star name (2MASSJHHMMSSss+DDMMSSs)meta.id;meta.maincharElElementphys.atmol.elementcharLine[4981.7/8773.9] Line ({AA})0.1nmem.wlfloatA(El)[0/9.36] BACCHUS absolute abundancephys.abundfloatJ/AJ/156/126/table3Stellar parameters and abundances from the BACCHUS analysisSimbadNameSimbad column added by the CDSmeta.idchar_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2MASS2MASS position based star name (2MASSJHHMMSSss+DDMMSSs)meta.id;meta.maincharprimarymoreindicates line-to-line abundances in Table 2 for this starmeta.ref.urlcharTeff[3993/6642] Stellar effective temperatureKphys.temperature.effectiveinte_Teff[2/179] Uncertainty in TeffKstat.error;phys.temperature.effectiveintlogg[1.15/4.63] Surface gravitylog(cm.s**-2)phys.gravityfloate_logg[0/0.84] Uncertainty in logglog(cm.s**-2)stat.errorfloat[Fe/H][-1.79/0.51] Log abundance, [Fe/H]phys.abund.Fefloate_[Fe/H][0.06/0.14] Uncertainty in [Fe/H]stat.error;phys.abund.FefloatVturb[0/1.9] Microturbulent velocitykm/sphys.velocfloate_Vturb[0.03/0.13] Uncertainty in Vturbkm/sstat.errorfloat[O/Fe][-0.2/0.71]? Log abundance, [O/Fe] (1)phys.abunddoublenullablee_[O/Fe][0.01/9.73]? Uncertainty in [O/Fe] (1)stat.error;phys.abunddoublenullable[Na/Fe][-0.25/0.47]? Log abundance, [Na/Fe] (1)phys.abunddoublenullablee_[Na/Fe][0.01/0.19]? Uncertainty in [Na/Fe] (1)stat.error;phys.abunddoublenullable[Mg/Fe][-0.19/0.46]? Log abundance, [Mg/Fe] (1)phys.abunddoublenullablee_[Mg/Fe][0/0.11]? Uncertainty in [Mg/Fe] (1)stat.error;phys.abunddoublenullable[Al/Fe][-0.19/0.47]? Log abundance, [Al/Fe] (1)phys.abunddoublenullablee_[Al/Fe][0.01/0.08]? Uncertainty in [Al/Fe] (1)stat.error;phys.abunddoublenullable[Si/Fe][-0.16/0.42]? Log abundance, [Si/Fe] (1)phys.abunddoublenullablee_[Si/Fe][0.01/0.05]? Uncertainty in [Si/Fe] (1)stat.error;phys.abunddoublenullable[S/Fe][-0.27/0.6]? Log abundance, [S/Fe] (1)phys.abunddoublenullablee_[S/Fe][0/0.07]? Uncertainty in [S/Fe] (1)stat.error;phys.abunddoublenullable[K/Fe][-0.17/0.72]? Log abundance, [K/Fe] (1)phys.abunddoublenullablee_[K/Fe][0.02/0.6]? Uncertainty in [K/Fe] (1)stat.error;phys.abunddoublenullable[Ca/Fe][-0.1/0.48]? Log abundance, [Ca/Fe] (1)phys.abundfloatnullablee_[Ca/Fe][0.01/0.14]? Uncertainty in [Ca/Fe] (1)stat.error;phys.abundfloatnullable[Ti/Fe][-0.22/0.4]? Log abundance, [Ti/Fe] (1)phys.abunddoublenullablee_[Ti/Fe][0.02/0.11]? Uncertainty in [Ti/Fe] (1)stat.error;phys.abunddoublenullable[V/Fe][-0.31/0.37]? Log abundance, [V/Fe] (1)phys.abunddoublenullablee_[V/Fe][0.01/0.09]? Uncertainty in [V/Fe] (1)stat.error;phys.abunddoublenullable[Cr/Fe][-0.23/0.31]? Log abundance, [Cr/Fe] (1)phys.abundfloatnullablee_[Cr/Fe][0.01/0.12]? Uncertainty in [Cr/Fe] (1)stat.error;phys.abundfloatnullable[Mn/Fe][-0.43/0.27]? Log abundance, [Mn/Fe] (1)phys.abundfloatnullablee_[Mn/Fe][0/0.18]? Uncertainty in [Mn/Fe] (1)stat.error;phys.abundfloatnullable[Co/Fe][-0.22/0.3]? Log abundance, [Co/Fe] (1)phys.abunddoublenullablee_[Co/Fe][0.01/0.12]? Uncertainty in [Co/Fe] (1)stat.error;phys.abunddoublenullable[Ni/Fe][-0.19/0.22]? Log abundance, [Ni/Fe] (1)phys.abunddoublenullablee_[Ni/Fe][0.01/0.07]? Uncertainty in [Ni/Fe] (1)stat.error;phys.abunddoublenullable[Cu/Fe][-0.33/0.35]? Log abundance, [Cu/Fe] (1)phys.abundfloatnullablee_[Cu/Fe][0/0.3]? Uncertainty in [Cu/Fe] (1)stat.error;phys.abundfloatnullable[Rb/Fe][-0.46/0.28]? Log abundance, [Rb/Fe] (1)phys.abunddoublenullablee_[Rb/Fe][0/0.17]? Uncertainty in [Rb/Fe] (1)stat.error;phys.abunddoublenullable[Y/Fe][-0.6/0.35]? Log abundance, [Y/Fe] (1)phys.abunddoublenullablee_[Y/Fe][0.01/0.21]? Uncertainty in [Y/Fe] (1)stat.error;phys.abunddoublenullable_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main