J/A+A/624/A60ivo://CDS.VizieR/J/A+A/624/A60doi:10.26093/cds/vizier.36240060CDSLaverick M.Lobel A.Royer P.Merle T.Martayan C.van Hoof P. A. M.,Van der Swaelmen M.David M.Hensberge H.Thienpont E.2019-05-06T14:42:26Z2019-04-10T06:27:31ZCDS support team

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

cds-question@unistra.fratomic-physicsline-intensitiesspectroscopyFundamental atomic transition parameters, such as oscillator strengths and rest wavelengths, play a key role in modelling and understanding the chemical composition of stars in the universe. Despite the significant work under way to produce these parameters for many astrophysically important ions, uncertainties in these parameters remain large and can limit the accuracy of chemical abundance determinations. The Belgian repository of fundamental atomic data and stellar spectra (BRASS) aims to provide a large systematic and homogeneous quality assessment of the atomic data available for quantitative spectroscopy. BRASS shall compare synthetic spectra against extremely high-quality observed spectra, at a resolution of ~85000 and signal-noise ratios of ~1000, for approximately 20 bright BAFGK spectral-type stars, in order to critically evaluate the atomic data available for over a thousand potentially useful spectral lines. A large-scale homogeneous selection of atomic lines is performed by synthesising theoretical spectra of literature atomic lines for FGK-type stars including the Sun, resulting in a selection of 1091 theoretically deep and unblended lines in the wavelength range 4200-6800{AA}, which may be suitable for quality assessment. Astrophysical log(gf) values are determined for the 1091 transitions using two commonly employed methods. The agreement of these log(gf) values are used to select well-behaved lines for quality assessment. We found 845 atomic lines to be suitable for quality assessment, of which 408 were found to be robust against systematic differences between analysis methods. Around 53% of the quality-assessed lines were found to have at least one literature log(gf) value in agreement with our derived values, though the remaining values can disagree by as much as 0.5dex. Only ~38% of FeI lines were found to have sufficiently accurate log(gf) values, increasing to ~70-75% for the remaining Fe-group lines.2019A&A...624A..60Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/624/A60CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/624/A60https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/624/A60http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/624/A60https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/624/A60https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/624/A60http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/624/A60GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/624/A60/stars (List of studied stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/624/A60/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/624/A60/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/624/A60/stars?GETtext/xml+votable180.050000true53.2326667-9.458250.0055555555555555566/10375 20145 23190 26575 31751 36697https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/624/A60?format=asciidefaultJ/A+A/624/A60/starsList of studied starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharRAJ2000? Right ascension (J2000)pos.eq.ra;meta.mainnullableDEJ2000? Declination (J2000)pos.eq.dec;meta.mainnullableJ/A+A/624/A60/tablee1Equivalent widths per star per log(gf) valuerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLine[1/1091] Internal line designation (1)0.1nmmeta.idintepseriMeasMeasured EW of eps Eri0.1nmspect.line.eqWidthfloatepseriCorr? Theoretical EW correction of eps Eri to account for Voigt wings(2)0.1nmarith.factor;spect.line.eqWidthfloatnullableepseriGridTheoretical EW corresponding to grid log(gf) value for eps Eri0.1nmspect.line.eqWidthfloatepseriCogTheoretical EW corresponding to curve of growth log(gf) value for eps Eri0.1nmspect.line.eqWidthfloatepseriBrassTheoretical EW corresponding to BRASS log(gf) value for eps Eri0.1nmspect.line.eqWidthfloatepseriNIST? Theoretical EW corresponding to NIST log(gf) value for eps Eri (3)0.1nmspect.line.eqWidthfloatnullableepseriVALD? Theoretical EW corresponding to VALD log(gf) value for eps Eri (3)0.1nmspect.line.eqWidthfloatnullableepserispWEB? Theoretical EW corresponding to spectroweb log(gf) value for eps Eri (3)0.1nmspect.line.eqWidthfloatnullableepserisp3? Theoretical EW corresponding to spectrw3 log(gf) value for eps Eri (3)0.1nmspect.line.eqWidthfloatnullableepseriChianti? Theoretical EW corresponding to chianti log(gf) value for eps Eri (3)0.1nmspect.line.eqWidthfloatnullableepseriTipbase? Theoretical EW corresponding to tipbase log(gf) value for eps Eri (3)0.1nmspect.line.eqWidthfloatnullableepseriTopbase? Theoretical EW corresponding to topbase log(gf) value for eps Eri (3)0.1nmspect.line.eqWidthfloatnullable70ophMeasMeasured EW of 70 Oph0.1nmspect.line.eqWidthfloat70ophCorr? Theoretical EW correction of 70 Oph to account for Voigt wings(2)0.1nmarith.factor;spect.line.eqWidthfloatnullable70ophGridTheoretical EW corresponding to grid log(gf) value for 70 Oph0.1nmspect.line.eqWidthfloat70ophCogTheoretical EW corresponding to curve of growth log(gf) value for 70 Oph0.1nmspect.line.eqWidthfloat70ophBrassTheoretical EW corresponding to BRASS log(gf) value for 70 Oph0.1nmspect.line.eqWidthfloat70ophNIST? Theoretical EW corresponding to NIST log(gf) value for 70 Oph (3)0.1nmspect.line.eqWidthfloatnullable70ophVALD? Theoretical EW corresponding to VALD log(gf) value for 70 Oph (3)0.1nmspect.line.eqWidthfloatnullable70ophspWEB? Theoretical EW corresponding to spectroweb log(gf) value for 70 Oph (3)0.1nmspect.line.eqWidthfloatnullable70ophsp3? Theoretical EW corresponding to spectrw3 log(gf) value for 70 Oph (3)0.1nmspect.line.eqWidthfloatnullable70ophChianti? Theoretical EW corresponding to chianti log(gf) value for 70 Oph (3)0.1nmspect.line.eqWidthfloatnullable70ophTipbase? Theoretical EW corresponding to tipbase log(gf) value for 70 Oph (3)0.1nmspect.line.eqWidthfloatnullable70ophTopbase? Theoretical EW corresponding to topbase log(gf) value for 70 Oph (3)0.1nmspect.line.eqWidthfloatnullable70virmeasMeasured ew of 70 vir0.1nmspect.line.eqWidthfloat70virCorr? Theoretical EW correction of 70 Vir to account for Voigt wings(2)0.1nmarith.factor;spect.line.eqWidthfloatnullable70virGridTheoretical EW corresponding to grid log(gf) value for 70 Vir0.1nmspect.line.eqWidthfloat70virCogTheoretical EW corresponding to curve of growth log(gf) value for 70 Vir0.1nmspect.line.eqWidthfloat70virBrassTheoretical EW corresponding to BRASS log(gf) value for 70 Vir0.1nmspect.line.eqWidthfloat70virNIST? Theoretical EW corresponding to NIST log(gf) value for 70 Vir (3)0.1nmspect.line.eqWidthfloatnullable70virVALD? Theoretical EW corresponding to VALD log(gf) value for 70 Vir (3)0.1nmspect.line.eqWidthfloatnullable70virspWEB? Theoretical EW corresponding to spectroweb log(gf) value for 70 Vir (3)0.1nmspect.line.eqWidthfloatnullable70virsp3? Theoretical EW corresponding to spectrw3 log(gf) value for 70 Vir (3)0.1nmspect.line.eqWidthfloatnullable70virChianti? Theoretical EW corresponding to chianti log(gf) value for 70 Vir (3)0.1nmspect.line.eqWidthfloatnullable70virTipbase? Theoretical EW corresponding to tipbase log(gf) value for 70 Vir (3)0.1nmspect.line.eqWidthfloatnullable70virTopbase? Theoretical EW corresponding to topbase log(gf) value for 70 Vir (3)0.1nmspect.line.eqWidthfloatnullablesunMeasMeasured EW of sun0.1nmspect.line.eqWidthfloatsunCorr? Theoretical EW correction of sun to account for Voigt wings(2)0.1nmarith.factor;spect.line.eqWidthfloatnullablesunGridTheoretical EW corresponding to grid log(gf) value for Sun0.1nmspect.line.eqWidthfloatsunCogTheoretical EW corresponding to curve of growth log(gf) value for Sun0.1nmspect.line.eqWidthfloatsunBrassTheoretical EW corresponding to BRASS log(gf) value for Sun0.1nmspect.line.eqWidthfloatsunNIST? Theoretical EW corresponding to NIST log(gf) value for Sun (3)0.1nmspect.line.eqWidthfloatnullablesunVALD? Theoretical EW corresponding to VALD log(gf) value for Sun (3)0.1nmspect.line.eqWidthfloatnullablesunspWEB? Theoretical EW corresponding to spectroweb log(gf) value for Sun (3)0.1nmspect.line.eqWidthfloatnullablesunsp3? Theoretical EW corresponding to spectrw3 log(gf) value for Sun (3)0.1nmspect.line.eqWidthfloatnullablesunChianti? Theoretical EW corresponding to chianti log(gf) value for Sun (3)0.1nmspect.line.eqWidthfloatnullablesunTipbase? Theoretical EW corresponding to tipbase log(gf) value for Sun (3)0.1nmspect.line.eqWidthfloatnullablesunTopbase? Theoretical EW corresponding to topbase log(gf) value for Sun (3)0.1nmspect.line.eqWidthfloatnullable51pegMeasMeasured EW of 51 Peg0.1nmspect.line.eqWidthfloat51pegCorr? Theoretical EW correction of 51 Peg to account for Voigt wings(2)0.1nmarith.factor;spect.line.eqWidthfloatnullable51pegGridTheoretical EW corresponding to grid log(gf) value for 51 Peg0.1nmspect.line.eqWidthfloat51pegCogTheoretical EW corresponding to curve of growth log(gf) value for 51 Peg0.1nmspect.line.eqWidthfloat51pegBrassTheoretical EW corresponding to BRASS log(gf) value for 51 Peg0.1nmspect.line.eqWidthfloat51pegNIST? Theoretical EW corresponding to NIST log(gf) value for 51 Peg (3)0.1nmspect.line.eqWidthfloatnullable51pegVALD? Theoretical EW corresponding to VALD log(gf) value for 51 Peg (3)0.1nmspect.line.eqWidthfloatnullable51pegspWEB? Theoretical EW corresponding to spectroweb log(gf) value for 51 Peg (3)0.1nmspect.line.eqWidthfloatnullable51pegsp3? Theoretical EW corresponding to spectrw3 log(gf) value for 51 Peg (3)0.1nmspect.line.eqWidthfloatnullable51pegChianti? Theoretical EW corresponding to chianti log(gf) value for 51 Peg (3)0.1nmspect.line.eqWidthfloatnullable51pegTipbase? Theoretical EW corresponding to tipbase log(gf) value for 51 Peg (3)0.1nmspect.line.eqWidthfloatnullable51pegTopbase? Theoretical EW corresponding to topbase log(gf) value for 51 Peg (3)0.1nmspect.line.eqWidthfloatnullable10tauMeasMeasured EW of 10 Tau0.1nmspect.line.eqWidthfloat10tauCorr? Theoretical EW correction of 10 Tau to account for Voigt wings(2)0.1nmarith.factor;spect.line.eqWidthfloatnullable10tauGridTheoretical EW corresponding to grid log(gf) value for 10 Tau0.1nmspect.line.eqWidthfloat10tauCogTheoretical EW corresponding to curve of growth log(gf) value for 10 Tau0.1nmspect.line.eqWidthfloat10tauBrassTheoretical EW corresponding to BRASS log(gf) value for 10 Tau0.1nmspect.line.eqWidthfloat10tauNIST? Theoretical EW corresponding to NIST log(gf) value for 10 Tau (3)0.1nmspect.line.eqWidthfloatnullable10tauVALD? Theoretical EW corresponding to VALD log(gf) value for 10 Tau (3)0.1nmspect.line.eqWidthfloatnullable10tauspWEB? Theoretical EW corresponding to spectroweb log(gf) value for 10 Tau (3)0.1nmspect.line.eqWidthfloatnullable10tausp3? Theoretical EW corresponding to spectrw3 log(gf) value for 10 Tau (3)0.1nmspect.line.eqWidthfloatnullable10tauChianti? Theoretical EW corresponding to chianti log(gf) value for 10 Tau (3)0.1nmspect.line.eqWidthfloatnullable10tauTipbase? Theoretical EW corresponding to tipbase log(gf) value for 10 Tau (3)0.1nmspect.line.eqWidthfloatnullable10tauTopbase? Theoretical EW corresponding to topbase log(gf) value for 10 Tau (3)0.1nmspect.line.eqWidthfloatnullablebetcomMeasMeasured EW of beta Com0.1nmspect.line.eqWidthdoublebetcomCorr? Theoretical EW correction of beta Com to account for Voigt wings(2)0.1nmarith.factor;spect.line.eqWidthfloatnullablebetcomGridTheoretical EW corresponding to grid log(gf) value for beta Com0.1nmspect.line.eqWidthfloatbetcomCogTheoretical EW corresponding to curve of growth log(gf) value for beta Com0.1nmspect.line.eqWidthfloatbetcomBrassTheoretical EW corresponding to BRASS log(gf) value for beta Com0.1nmspect.line.eqWidthfloatbetcomNIST? Theoretical EW corresponding to NIST log(gf) value for beta Com (3)0.1nmspect.line.eqWidthfloatnullablebetcomVALD? Theoretical EW corresponding to VALD log(gf) value for beta Com (3)0.1nmspect.line.eqWidthfloatnullablebetcomspWEB? Theoretical EW corresponding to spectroweb log(gf) value for beta Com (3)0.1nmspect.line.eqWidthfloatnullablebetcomsp3? Theoretical EW corresponding to spectrw3 log(gf) value for beta Com (3)0.1nmspect.line.eqWidthfloatnullablebetcomChianti? Theoretical EW corresponding to chianti log(gf) value for beta Com (3)0.1nmspect.line.eqWidthfloatnullablebetcomTipbase? Theoretical EW corresponding to tipbase log(gf) value for beta Com (3)0.1nmspect.line.eqWidthfloatnullablebetcomTopbase? Theoretical EW corresponding to topbase log(gf) value for beta Com (3)0.1nmspect.line.eqWidthfloatnullableJ/A+A/624/A60/tablef1Quality assessment resultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLine[1/1091] Internal line designation (1)meta.idintElemElement of transitionphys.atmol.element;phys.atmol.transitioncharIonIonisation stage of elementphys.atmol.ionStageintInputWaveInput BRASS wavelength0.1nmem.wl;phys.atmol.transitiondoubledwaveGridWavelength determined via grid method0.1nmem.wl;phys.atmol.transitionfloate_dwaveGridGrid method wavelength uncertainty0.1nmstat.errorfloatElowLower energy level of transitioneVphys.energy;stat.minfloatloggfCogCurve of growth method log(gf) valuephys.atmol.oscStrengthfloate_loggfCogCurve of growth method log(gf) errorstat.errorfloatloggfGridGrid method log(gf) valuephys.atmol.oscStrengthfloate_loggfGridGrid method log(gf) errorstat.errorfloatQualQuality assessment flag (2)meta.code.qualintAIRobust-to-systematics flag (3)meta.codeintPaper1log(gf) value of paper1phys.atmol.oscStrengthfloatr_Paper1Reference of paper1 log(gf) valuemeta.ref;pos.frameintNISTlog(gf) value of nist (4)phys.atmol.oscStrengthcharr_NISTReference of nist log(gf) value (4)meta.ref;pos.framecharspWEBlog(gf) value of spectroweb (4)phys.atmol.oscStrengthcharr_spWEBReference of spectroweb log(gf) value (4)meta.ref;pos.framecharVALDlog(gf) value of vald (4)phys.atmol.oscStrengthcharr_VALDReference of vald log(gf) value (4)meta.ref;pos.framecharsp3log(gf) value of spectrw3 (4)phys.atmol.oscStrengthcharr_sp3Reference of spectrw3 log(gf) value (4)meta.ref;pos.framecharCHIANTIlog(gf) value of chianti (4)phys.atmol.oscStrengthcharr_CHIANTIReference of chianti log(gf) value (4)meta.ref;pos.framecharTipbaselog(gf) value of tipbase (4)phys.atmol.oscStrengthcharr_TipbaseReference of tipbase log(gf) value (4)meta.ref;pos.framecharTopbaselog(gf) value of topbase (4)phys.atmol.oscStrengthcharr_TopbaseReference of topbase log(gf) value (4)meta.ref;pos.framecharRecomLitReference numbers of recommended literature log(gf) values (5)meta.bibcharJ/A+A/624/A60/tabled12Individual log(gf) values per star per methode_70virGridgrid method log(gf) error for 70 Virphys.atmol.oscStrengthfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLine[1/1091] Internal line designation (1)meta.idintepseriCog? Curve of growth log(gf) for eps Eri (2)phys.atmol.oscStrengthfloatnullable70ophCog? Curve of growth log(gf) for 70 Oph (2)phys.atmol.oscStrengthfloatnullable70virCog? Curve of growth log(gf) for 70 Vir (2)phys.atmol.oscStrengthfloatnullablesunCog? Curve of growth log(gf) for Sun (2)phys.atmol.oscStrengthfloatnullable51pegCog? Curve of growth log(gf) for 51 Peg (2)phys.atmol.oscStrengthfloatnullable10tauCog? Curve of growth log(gf) for 10 Tau (2)phys.atmol.oscStrengthfloatnullablebetcomCog? Curve of growth log(gf) for beta Com (2)phys.atmol.oscStrengthfloatnullableepseriGridgrid method log(gf) value for eps Eriphys.atmol.oscStrengthfloate_epseriGridgrid method log(gf) error for eps Eriphys.atmol.oscStrengthfloat70ophGridgrid method log(gf) value for 70 Ophphys.atmol.oscStrengthfloate_70ophGridgrid method log(gf) error for 70 Ophphys.atmol.oscStrengthfloat70virGridgrid method log(gf) value for 70 Virphys.atmol.oscStrengthfloatsunGridgrid method log(gf) value for Sunphys.atmol.oscStrengthfloate_sunGridgrid method log(gf) error for Sunphys.atmol.oscStrengthfloat51pegGridgrid method log(gf) value for 51 Pegphys.atmol.oscStrengthfloate_51pegGridgrid method log(gf) error for 51 Pegphys.atmol.oscStrengthfloat10tauGridgrid method log(gf) value for 10 Tauphys.atmol.oscStrengthfloate_10tauGridgrid method log(gf) error for 10 Tauphys.atmol.oscStrengthfloatbetcomGridgrid method log(gf) value for beta Comphys.atmol.oscStrengthfloate_betcomGridgrid method log(gf) error for beta Comphys.atmol.oscStrengthfloat