J/A+A/587/A131ivo://CDS.VizieR/J/A+A/587/A131doi:10.26093/cds/vizier.35870131CDSMahdi D.Soubiran C.Blanco-Cuaresma S.Chemin L.2017-11-29T11:47:50Z2016-03-02T08:16:07ZCDS support team

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

cds-question@unistra.frg-starschemical-abundanceseffective-temperatureA large dataset of ~2800 spectra extracted from the ELODIE archive was analysed in order to find solar twins. Stellar spectra closely resembling the spectrum of the Sun were selected by applying a purely differential method, directly on the fluxes. As solar reference, 18 spectra of asteroids, of the Moon, and of the blue sky were used. Atmospheric parameters and differential abundances of eight chemical elements were determined for the solar twin candidates after a careful selection of appropriate lines. The Li feature of the targets was investigated and additional information on absolute magnitude and age was gathered from the literature. HIP076114 (HD138573) is our best twin candidate; it looks exactly like the Sun in all these properties.2016A&A...587A.131Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/587/A131CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/501/687 : Evolutionnary models for solar twins (do Nascimento+, 2009)J/A+A/508/L17 : Abundances in solar analogs (Ramirez+, 2009)J/A+A/544/A106 : p-mode frequencies of the solar twin 18 Sco (Bazot+, 2012)J/A+A/574/A124 : Spectroscopy of solar twins and analogues (Datson+, 2015)J/PAZh/38/763 : XHIP-II: Clusters and associations (Francis+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/587/A131https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/587/A131http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/587/A131https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/587/A131https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/587/A131http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/587/A131GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/587/A131/refsReferences of the line listrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference numbermeta.id;meta.mainintBibCodeBibCodemeta.bib.bibcodecharAutAuhtor's namemeta.idcharComCommentsmeta.notecharJ/A+A/587/A131/starsAtmospheric parameters (tableap), Abundances (tableab) and data from XHIP (tablxhip)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameDesignation HIP/TYCmeta.id;phys.atmol.configurationcharTeffEffective temperatureKphys.temperature.effectiveinte_TeffUncertainty on effective temperatureKstat.error;phys.temperature.effectiveintloggLogarithm of gravitylog(cm.s**-2)phys.gravityfloate_loggUncertainty on the logarithm of gravitylog(cm.s**-2)stat.errorfloat[M/H]Global metallicity relative to the Sunlog(Sun)phys.abund.Zfloate_[M/H]Uncertainty on the global metallicitylog(Sun)stat.error;phys.abundfloatNspeNumber of spectra analysedmeta.numberintFlagAP[ABC] AP similarity to the Sun (1)meta.code.errorcharFlagLi[ABC] Li similarity to the Sun (2)meta.code.errorchar[Fe1/H]Iron (neutral) abundance relative to the Sunlog(Sun)phys.abund.Fefloate_[Fe1/H]Uncertainty of [Fe1/H]log(Sun)stat.error;phys.abundfloatn_[Fe1/H]Number of lines analysedmeta.noteint[Fe2/H]Iron (ionised) abundance relative to the Sunlog(Sun)phys.abund.Fefloate_[Fe2/H]Uncertainty of [Fe2/H]log(Sun)stat.error;phys.abundfloatn_[Fe2/H]Number of lines analysedmeta.noteint[Si/H]Silicium abundance relative to the Sunlog(Sun)phys.abundfloate_[Si/H]Uncertainty of [Si/H]log(Sun)stat.error;phys.abundfloatn_[Si/H]Number of lines analysedmeta.noteint[Ca/H]Calcium abundance relative to the Sunlog(Sun)phys.abundfloate_[Ca/H]Uncertainty of [Ca/H]log(Sun)stat.error;phys.abundfloatn_[Ca/H]Number of lines analysedmeta.noteint[Ti/H]Titanium abundance relative to the Sunlog(Sun)phys.abundfloate_[Ti/H]Uncertainty of [Ti/H]log(Sun)stat.error;phys.abundfloatn_[Ti/H]Number of lines analysedmeta.noteint[Cr/H]Chromium abundance relative to the Sunlog(Sun)phys.abundfloate_[Cr/H]Uncertainty of [Cr/H]log(Sun)stat.error;phys.abundfloatn_[Cr/H]Number of lines analysedmeta.noteint[Na/H]Natrium abundance relative to the Sunlog(Sun)phys.abundfloate_[Na/H]Uncertainty of [Na/H]log(Sun)stat.error;phys.abundfloatn_[Na/H]Number of lines analysedmeta.noteint[Mn/H]Manganese abundance relative to the Sunlog(Sun)phys.abundfloate_[Mn/H]Uncertainty of [Mn/H]log(Sun)stat.error;phys.abundfloatn_[Mn/H]Number of lines analysedmeta.noteint[Ni/H]Nickel abundance relative to the Sunlog(Sun)phys.abundfloate_[Ni/H]Uncertainty of [Ni/H]log(Sun)stat.error;phys.abundfloatn_[Ni/H]Number of lines analysedmeta.noteintHDDesignation HD (HDNNNNNN)meta.idcharDist? Heliocentric distancepcpos.distancefloatnullableSpType? MK spectral typesrc.spTypecharB-VB-V colour indexmagphot.color;em.opt.B;em.opt.VfloatVMAG? V absolute magnitudemagphys.magAbs;em.opt.VfloatnullableUvel? Heliocentric velocity towards Galactic centerkm/spos.cartesian.xfloatnullableVvel? Heliocentric velocity towards Galactic rotationkm/spos.cartesian.yfloatnullableWvel? Heliocentric velocity towards North Galactic polekm/spos.cartesian.zfloatnullableAge? AgeGyrtime.agefloatnullableb_Age? Lower confidence limit on AgeGyrtime.age;stat.fit.paramfloatnullableB_Age? Upper confidence limit on AgeGyrtime.age;stat.fit.paramfloatnullableFlag[ABC] compatibility with the Sun (1)meta.code.errorcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/587/A131/linelistLine listrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambdaCentral wavelength of the line0.1nmem.wl.central;spect.linedoubleElElementphys.atmol.elementcharIonIonisation stage of the linephys.atmol.ionStagecharloggfOscillation strength of the linespect.line.intensityfloatEPExcitation potential of the lineeVphys.atmol.excitation;spect.linefloatFlagGES[NUY-] Quality flag from Gaia-ESO line listmeta.code.errorcharr_loggfReferences for loggfmeta.ref;pos.framechar