J/A+A/573/A67ivo://CDS.VizieR/J/A+A/573/A67doi:10.26093/cds/vizier.35730067CDSPaletou F.Boehm T.Watson V.Trouilhet J.-F.2018-01-05T08:56:38Z2015-03-11T14:23:32ZCDS support team

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

cds-question@unistra.frspectroscopyeffective-temperaturemetallicityThe general context of this study is the inversion of stellar fundamental parameters from high-resolution Echelle spectra. We aim at developing a fast and reliable tool for the post-processing of spectra produced by ESPaDOnS and Narval spectropolarimeters. Our inversion tool relies on principal component analysis. It allows reducing dimensionality and defining a specific metric for the search of nearest neighbours between an observed spectrum and a set of observed spectra taken from the Elodie stellar library. Effective temperature, surface gravity, total metallicity, and projected rotational velocity are derived. Various tests presented in this study that were based solely on information coming from a spectral band centred on the Mgi b-triplet and had spectra from FGK stars are very promising.2015A&A...573A..67Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/573/A67CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/159/141 : Spectroscopic properties of cool stars. I. (Valenti+, 2005)III/251 : ELODIE library V3.1 (Prugniel+ 2007)J/PASP/126/469 : PolarBase catalogue of stellar spectra (Petit+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/573/A67https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/573/A67http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/573/A67https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/573/A67https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/573/A67http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/573/A67GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/573/A67/table5 (Values and uncertainties of the inverted stellar parameters T_eff_, logg, and [Fe/H] for objects of Valenti & Fischer 2005 (J/ApJS/159/141) in common with PolarBase using our Elodie-based PCA method)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/573/A67/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/573/A67/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/573/A67/table5?GETtext/xml+votable180.050000true39.02039446.88687420.0055555555555555566/137 309 377 400 475 679 684 719 742 819 934 1136 1341 1827 2072 2366 2491 2622 2658 3020 3095 3639 3780 4735 5009 5074 5088 5266 5304 5498 6066 6087 6217 6325 6523 7299 8286 8614 8790 8792 8843 9125 10375 10926 11856 12592 12634 12644 12899 13749 13778 14278 14290 14548 14650 14662 15044 15154 15170 15174 16069 17266 17425 17502 17606 17730 17929 17944 17989 18035 18139 18373 18614 18637 18711 18726 18821 18966 19153 19509 19796 19900 19912 20005 20015 20127 20145 20237 20328 20332 20402 21386 22036 22252 22300 22654 22708 22969 23057 23076 23096-23097 23230 23369 23575 24027-24028 24151 25939 26809 26975 27254 27712 28122 28180 28494 28605 28664 29900 30419 30878 30965 31130 31821 31920 32158 32192 32575 32617 32645 32757 36693 36697 36723 39576 40892 40932 42887 44317 48105https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/573/A67?format=asciiOpticaldefaultJ/A+A/573/A67/table5Values and uncertainties of the inverted stellar parameters T_eff_, logg, and [Fe/H] for objects of Valenti & Fischer 2005 (J/ApJS/159/141) in common with PolarBase using our Elodie-based PCA methodrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharTeffEffective temperatureKphys.temperature.effectiveinte_Teffrms uncertainty on TeffKstat.error;phys.temperature.effectiveintloggSurface gravitylog(cm.s**-2)phys.gravityfloate_loggrms uncertainty on logglog(cm.s**-2)stat.errorfloat[Fe/H][-0.82/0.34] Metallicitylog(Sun)phys.abund.Zfloate_[Fe/H]rms uncertainty on [Fe/H]log(Sun)stat.error;phys.abund.FefloatPBDisplay PolarBase details (Petit et al., 2014, Cat. J/PASP/126/469meta.ref.urlcharSPOCSSimbad column added by the CDSmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main