J/A+A/694/A65ivo://CDS.VizieR/J/A+A/694/A65doi:10.26093/cds/vizier.36940065CDSGraczyk D.Pietrzynski GGalan C.Miller N.Gieren W.Zgirski B.,Hajdu G.Kaluszynski M.Chini R.Gallenne A.Gorski M.Karczmarek P.,Kervella P.Kicia M.Maxted P.F.L.Nardetto N.Narloch W.Pilecki B.,Pych W.Rojas Garcia G.Smolec R.Suchomska K.Taormina M.,Wielgorski P.2025-05-21T20:02:09Z2025-02-04T11:13:13ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsspectroscopic-binary-starsSurface brightness-colour relations (SBCRs) are useful tools for predicting the angular diameters of stars. They offer the possibility to calculate precise spectrophotometric distances by the eclipsing binary method or the Baade-Wesselink method. Double-lined Detached Eclipsing Binary stars (SB2 DEBs) with precisely known trigonometric parallaxes allow for the calibration of SBCRs with high precision. In order to improve such calibrations, it is important to enlarge the sample of suitable eclipsing binaries with precisely determined physical parameters. We selected 10 SB2 DEBs within 0.8kpc of the Sun with components of spectral types from B9 to K3. We analysed TESS and Kepler K2 space-based photometry simultaneously with radial velocities derived from HARPS spectra using the Wilson-Devinney code. Disentangled spectra of DEBs were used to derive atmospheric parameters of their components by applying the GSSP code. Direct effective temperatures were also calculated using spectral energy distribution analysis. The O-C diagrams of minima times were investigated in order to detect long-term period changes or apsidal motions. Most of the systems are composed of significantly unequal components with mass ratios as low as ~0.5. We derived precise masses, radii and surface temperatures for them, as well as their metallicities. The average precision of mass and radii determinations is 0.3% and 1.4% for the surface temperature. The spectroscopic and photometric temperatures of the components are usually consistent to within 100K but in some systems the difference is much larger. Components of HD 149946 show the highest difference (up to 400K) and the atmospheric models favours different surface metallicities. We also provide an updated calibration of the equivalent width of the interstellar sodium D1 line and the reddening E(B-V).2025A&A...694A..65Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/694/A65CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/666/A128 : 10 eclipsing binaries photometry and velocimetryhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/694/A65https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/694/A65http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/694/A65https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/694/A65https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/694/A65http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/694/A65GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/694/A65/table1 (Basic data on the eclipsing binary stars studied in the current work)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/694/A65/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/694/A65/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/694/A65/table1?GETtext/xml+votable180.050000true13.8618333-37.52397220.0055555555555555566/4661 17323 20534 20776 27081 29298 33983 35536 42862 46901https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/694/A65?format=asciidefaultJ/A+A/694/A65/table1Basic data on the eclipsing binary stars studied in the current workplxGaia parallaxmaspos.parallax.trigfloate_plxGaia parallax errormasstat.error;pos.parallaxfloatVmagV magnitudemagphot.mag;em.opt.Vfloate_VmagV magnitude errormagstat.error;phot.magfloatB-VB-V colour indexmagphot.color;em.opt.B;em.opt.Vfloate_B-VB-V colour index errormagstat.error;phot.color;em.opt.BfloatPorbOrbital perioddtime.periodfloatSpTypeRefined spectral types given in Sect. 5.4src.spTypecharVCShow the Radial Velocity curvesmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of an eclipsing binarymeta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainJ/A+A/694/A65/tablec3Radial velocities of 10 eclipsing binary starsRV1Radial velocity of a primarykm/sphys.veloc;pos.heliocentricdoublee_RV1Error of radial velocity of a primarykm/sstat.errorfloatRV2Radial velocity of a secondarykm/sphys.veloc;pos.heliocentricdoublee_RV2Error of radial velocity of a secondarykm/sstat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of an eclipsing binarymeta.id;meta.maincharBJDBarycentric Julian date of observation (BJD-2450000)dtime.epochdouble