J/AJ/148/71ivo://CDS.VizieR/J/AJ/148/71doi:10.26093/cds/vizier.51480071CDSLacy C.H.S.Fekel F.C.2017-06-26T11:50:13Z2014-11-28T17:14:04ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsvisible-astronomybroad-band-photometryradial-velocityV501 Her is a well detached G3 eclipsing binary star with a period of 8.597687days for which we have determined very accurate light and radial-velocity curves using robotic telescopes. Results of these data indicate that the component stars have masses of 1.269+/-0.004 and 1.211+/-0.003 solar masses, radii of 2.001+/-0.003 and 1.511+/-0.003 solar radii, and temperatures of 5683+/-100 K and 5720+/-100K, respectively. Comparison with the Yonsei-Yale series of evolutionary models results in good agreement at an age of about 5.1Gyr for a somewhat metal-rich composition. Those models indicate that the more massive, larger, slightly cooler star is just beyond core hydrogen exhaustion while the less massive, smaller, slightly hotter star has not quite reached core hydrogen exhaustion. The orbit is not yet circularized, and the components are rotating at or near their pseudosynchronous velocities. The distance to the system is 420+/-30pc.2014AJ....148...71Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/148/71CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/sb9 : 9th Catalogue of Spectroscopic Binary Orbits (Pourbaix+ 2004-2014)B/gcvs : General Catalogue of Variable Stars (Samus+ 2007-2013)J/AJ/147/148 : Spectroscopy and photometry of AP And (Lacy+, 2014)J/AJ/147/1 : Spectroscopy and photometry of HP Aur (Lacy+, 2014)J/AJ/144/167 : Photometry and spectroscopy of CF Tauri (Lacy+, 2012)J/AJ/142/185 : Properties of the eclipsing binary stars HY Vir (Lacy+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/148/71https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/148/71http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/148/71https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/148/71https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/148/71http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/148/71GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AJ/148/71/table3NFO differential photometry of V501 Her (NFO WebScope near Silver City, New Mexico)DVmagDifferential V band magnitudemagphot.mag;em.opt.V;arith.difffloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Date (HJD-2400000)dtime.epoch;obsdoubleJ/AJ/148/71/table5Radial velocity observations and residuals from the fitted orbitrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Date (HJD-2400000)dtime.epoch;obsdoublePhasePhase from periastrontime.phasefloatRV1Primary radial velocitykm/sspect.dopplerVelocfloatO-C1Primary (O-C) residualkm/sstat.fit.residual;stat.fit.omc;spect.dopplerVelocfloatRV2Secondary radial velocitykm/sspect.dopplerVelocfloatO-C2Secondary (O-C) residualkm/sstat.fit.residual;stat.fit.omc;spect.dopplerVelocfloatObsObservatory (Fairborn or KPNO) (1)meta.id;instr.obstycharJ/AJ/148/71/table2URSA differential photometry of V501 Her (URSA WebScope at Kimpel Observatory, Arkansas)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Date (HJD-2400000)dtime.epoch;obsdoubleDVmagDifferential V band magnitudemagphot.mag;em.opt.V;arith.difffloat