J/AJ/160/58ivo://CDS.VizieR/J/AJ/160/58doi:10.26093/cds/vizier.51600058CDSLester K.V.Fekel F.C.Muterspaugh M.Gies D.R.Schaefer G.H.,Farrington C.D.Guo Z.Matson R.A.Monnier J.D.ten Brummelaar T.,Sturmann J.Weiss S.A.2021-07-05T07:23:27Z2020-12-24T09:38:43ZCDS support team

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

cds-question@unistra.frmultiple-starsvisible-astronomyspectroscopyinfrared-astronomyradial-velocityastrometryWe present the visual orbits of two long-period spectroscopic binary stars, HD8374 and HD24546, using interferometric observations acquired with the Center for High Angular Resolution Astronomy (CHARA) Array and the Palomar Testbed Interferometer. We also obtained new radial velocities from echelle spectra using the APO 3.5m and Fairborn 2.0 telescopes. By combining the visual and spectroscopic observations, we solve for the full, three-dimensional orbits and determine the stellar masses and distances to within 3% uncertainty. We then estimate the effective temperature and radius of each component star through Doppler tomography and spectral energy distribution analyses, in order to compare the observed stellar parameters to the predictions of stellar evolution models. For HD8374, we find masses of M1=1.636{+/-}0.050M{sun} and M2=1.587{+/-}0.049M{sun}, radii of R1=1.84{+/-}0.05R{sun} and R2=1.66{+/-}0.12R{sun}, temperatures of Teff_1_=7280{+/-}110K and Teff-2-=7280{+/-}120K, and an estimated age of 1.0Gyr. For HD24546, we find masses of M1=1.434{+/-}0.014M{sun} and M2=1.409{+/-}0.014M{sun}, radii of R_1_=1.67{+/-}0.06R{sun} and R_2_=1.60{+/-}0.10R{sun}, temperatures of Teff_1_=6790{+/-}120K and Teff_2_=6770{+/-}90K, and an estimated age of 1.4Gyr. HD24546 is therefore too old to be a member of the Hyades cluster, despite its physical proximity to the group.2020AJ....160...58Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/160/58CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/pastel : The PASTEL catalogue (Soubiran+, 2016-)I/337 : Gaia DR1 (Gaia Collaboration, 2016)I/347 : Distance to 1.33 billion stars Gaia DR2 (Bailer-Jones+,2018)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)J/ApJS/99/135 : Rotation and Spectral Peculiarities (Abt+ 1995)J/A+A/331/81 : Hyades membership (Perryman+ 1998)J/A+AS/124/75 : Multiple star catalogue (MSC) (Tokovinin 1997-1999)J/A+A/404/775 : Radial velocities of HD 41004A/B (Zucker+, 2003)J/AJ/133/889 : Faint companions of Hipparcos stars (Lepine+, 2007)J/ApJS/176/276 : PTI calibrator catalog (van Belle+, 2008)J/AJ/142/19 : Speckle observations of KOI (Howell+, 2011)J/AJ/145/111 : Radial velocities of 5 spectroscopic binaries (Fekel+, 2013)J/AJ/152/213 : Interferometry & spectro. of sigma Orionis (Schaefer+, 2016)J/AJ/153/212 : Obs. of binary stars at the WIYN telescope (Horch+, 2017)J/ApJ/856/23 : BANYAN. XI. The BANYAN {Sigma} algorithm (Gagne+, 2018)J/MNRAS/479/1332 : Binaries with F, G or K primaries & M dwarfs (Montes+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/160/58https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/160/58http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/160/58https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/160/58https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/160/58http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/160/58GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/160/58/param (Orbital and stellar parameters (paste of table 7 and 8))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/160/58/param?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/160/58/param?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/160/58/param?GETtext/xml+votable180.050000true20.919236737.71494670.0055555555555555566/1779 2296https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/160/58?format=asciiOpticalInfrareddefaultJ/AJ/160/58/rvsCombined table from original tablesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDmeta.id;meta.maincharObsUT year of observationtime.epoch;obsHJDHeliocentric Julian Date, HJD-2400000dtime.epochdoublePorbOrbital phasetime.phasefloatRVel1First component radial velocitykm/sphys.veloc;pos.heliocentricfloate_RVel1Error on RVel1km/sstat.errorfloatO-C1First component residual velocitykm/sstat.fit.residualfloatRVel2Second component radial velocitykm/sphys.veloc;pos.heliocentricfloate_RVel2Error on RVel2km/sstat.errorfloatO-C2Second component residual velocitykm/sstat.fit.residualfloatTelTelescope usedinstr.setupcharJ/AJ/160/58/posRelative positions (merge of Table 5 and 6)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDmeta.id;meta.maincharObsUT year of observationtime.epoch;obsHJDHeliocentric Julian Date, HJD-2400000dtime.epochdoublePorbOrbital phasetime.phasefloatrhoAngular distance ({rho})maspos.angDistancefloatthetaPosition angle ({theta})degpos.posAngfloatemajSemi major axis of the error ellipse ({sigma}_maj_)masphys.angSize.smajAxis;pos.errorEllipsefloateminSemi minor axis of the error ellipse ({sigma}_min_)minphys.angSize;srcfloatPhiPosition angle of the error ellipse ({Phi})degpos.posAng;pos.errorEllipsefloatf2/f1Flux ratiophot.flux;arith.ratiofloatJ/AJ/160/58/paramOrbital and stellar parameters (paste of table 7 and 8)e_omega[0.1/0.2] Error on omegadegstat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDSystem identificationmeta.id;pos.frame;meta.maincharprimaryPer[30/36] Perioddtime.perioddoublee_Per[2e-05/5e-05] Error on Perdstat.errordoubleHJD[54293/57341] Heliocentric Julian Date, HJD-2400000dtime.epochdoublee_HJD[0.003/0.004] Error on HJDdstat.error;time.epochfloate[0.642/0.648] Eccentricitysrc.orbital.eccentricityfloate_e[0.0005/0.0006] Error on estat.errorfloatomega[207/326] Argument of periastron ({omega})degsrc.orbital.periastronfloati[56/141] Inclinationdegsrc.orbital.inclinationfloate_i[0.45] Error on idegstat.errorfloata[5/7] Semi-major axismasphys.angSize.smajAxis;src.orbitalfloate_a[0.02/0.06] Error on amasstat.errorfloatOmega[150/337] Ascending node ({Omega})degsrc.orbital.nodefloate_Omega[0.1/0.3] Error on Omegadegstat.errorfloatgamma[14.1/25.5] Systemic velocity ({gamma})km/sphys.velocfloate_gamma[0.02/0.04] Error on gammakm/sstat.errorfloatK1[39.2/52.3] Component 1 velocity amplitudekm/sphys.velocfloate_K1[0.05/0.06] Error on K1km/sstat.errorfloatK2[40.4/53.2] Component 2 velocity amplitudekm/sphys.velocfloate_K2[0.05/0.06] Error on K2km/sstat.errorfloatSimbadSimbad column added by the CDSmeta.ref.urlcharMass1[1.43/1.64] Component 1 masssolMassphys.massfloate_Mass1[0.01/0.05] Error on Mass1solMassstat.errorfloatMass2[1.4/1.59] Component 2 masssolMassphys.massfloate_Mass2[0.01/0.05] Error on Mass2solMassstat.errorfloatRad1[1.67/1.84] Component 1 radiussolRadphys.size.radiusfloate_Rad1[0.05/0.06] Error on Rad1solRadstat.errorfloatRad2[1.6/1.7] Component 2 radiussolRadphys.size.radiusfloate_Rad2[0.1/0.2] Error on Rad2solRadstat.errorfloatTeff1[6790/7280] Component 1 effective temperatureKphys.temperature.effectiveinte_Teff1[110/120] Error on Teff1Kstat.errorintTeff2[6770/7280] Component 2 effective temperatureKphys.temperature.effectiveinte_Teff2[90/120] Error on Teff2Kstat.errorintlogg1[4.15/4.16] Component 1 surface gravitylog(cm.s**-2)phys.gravityfloate_logg1[0.02] Error on logg1log(cm.s**-2)stat.errorfloatlogg2[4.18/4.22] Component 2 surface gravitylog(cm.s**-2)phys.gravityfloate_logg2[0.03] Error on logg2log(cm.s**-2)stat.errorfloatvsini1[14.1/15.9] Component 1 rotational velocitykm/sphys.veloc.rotatfloate_vsini1[0.9/1.3] Error on vsini1km/sstat.errorfloatvsini2[10.6/15.2] Component 2 rotational velocitykm/sphys.veloc.rotatfloate_vsini2[0.7/1.4] Error on vsini2km/sstat.errorfloatDist[38.7/61.7] Distancepcpos.distancefloate_Dist[0.2/0.7] Error on Distpcstat.errorfloatE(B-V)[0.04/0.07] Color excessmagphot.color.excessfloate_E(B-V)[0.01/0.02] Error on E(B-V)magstat.errorfloat_RAPosition from SIMBAD (right ascension part)degpos.eq.ra;meta.main_DEPosition from SIMBAD (declination part)degpos.eq.dec;meta.main