J/A+A/710/A369ivo://CDS.VizieR/J/A+A/710/A369CDSGarcia R.A.Mathur S.Hookway G.T.Godoy-Rivera D.Masseron T.,Betrisey J.Buldgen G.Lindsay C.Metcalfe T.S.Scutt O.J.Stokholm A.,Beck P.G.Benomar O.Davies G.R.Jimenez A.Merc J.Nielsen M.B.,Panetier E.Perez Hernandez F.Borg L.Breton S.N.Debacker L.,Escorza A.Grossmann D.H.Hamy A.Liagre B.Lund M.N.Mathis S.,Palakkatharappil D.B.Santos A.R.G.Delsanti V.Gonzalez-Cuesta L.,Fox V.Proust N.2026-06-29T15:02:53Z2026-06-29T16:02:23ZCDS support team

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

cds-question@unistra.frg-starsasteroseismologyvisible-astronomySolar analogs, stars that closely match the fundamental properties of the Sun, provide key benchmarks for testing stellar structure and evolution across different ages and activity levels. Their detailed characterization helps place the Sun in context within the broader population of solar-like stars. This study presents the characterization of six seismic solar analogs observed by the NASA Kepler and K2 missions. Combining asteroseismic constraints from space-based photometry with high-resolution spectroscopy and Gaia astrometry, we derived their fundamental parameters and assessed their resemblance to the Sun. Global seismic properties and individual oscillation modes were extracted from the photometric light curves, while atmospheric parameters were obtained from data collected by the HERMES spectrograph at the Mercator telescope. Stellar modeling using seven independent stellar evolution codes yielded consistent masses, radii, and ages. These stars have masses between 0.91 and 1.04M_{sun}_, radii between 0.95 and 1.08R_{sun}_, and ages from about 1.8 to 9.1Gyr, with typical systematic uncertainties of +/-0.02M_{sun}_, +/-0.01R_{sun}_, and +/-0.7Gyr, respectively. One star, EPIC 206064678, exhibits properties very similar to those of the Sun, with M=1.016+/-0.033M_{sun}_, R=0.990+/-0.011R_{sun}_, and an age of 5.40+/-0.12Gyr. It can therefore be considered a close solar twin, although it is slightly older and more metal-rich (0.25+/-0.07dex). Four targets display binarity signatures and all exhibit very low chromospheric activity. This work broadens the sample of well-characterized seismic solar analogs towards a larger sample of metallicities and ages, providing new references for comparative stellar studies and future asteroseismic investigations.2026A&A...710A.369Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/710/A369CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/710/A369https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/710/A369http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/710/A369https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/710/A369https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/710/A369http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/710/A369GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/710/A369/stars (List of studied stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/710/A369/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/710/A369/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/710/A369/stars?GETtext/xml+votable180.050000true333.2521667-13.02830560.0055555555555555566/14582 18539 18564 18613 25688 25758https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/710/A369?format=asciiOpticaldefaultJ/A+A/710/A369/starsList of studied starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameKIC or EPIC identifiermeta.id;meta.maincharRAJ2000Simbad right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Simbad declination (J2000)pos.eq.dec;meta.mainSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/710/A369/tableaFrequencies and associated uncertainty for each detected modes (n, l), and depending on the peakbagging code, for the full shown in Appendix ArecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameKIC or EPIC identifiermeta.id;meta.maincharnRadial order of the modestat.fit.paramintlAngular degree of the modestat.fit.paramintFreqapo? Mode frequency from Apollinaire (1)uHzem.freq;src.varfloatnullablee_Freqapo? Uncertainty on apo_freq (1)uHzstat.errorfloatnullableFreqpbjam? Mode frequency from PBjam (1)uHzem.freq;src.varfloatnullablee_Freqpbjam? Uncertainty on pbjam_freq (1)uHzstat.errorfloatnullableextendedMode quality flag (2)meta.code.qual;instr.setupint