J/AJ/142/185ivo://CDS.VizieR/J/AJ/142/185doi:10.26093/cds/vizier.51420185CDSLacy C.H.S.Fekel F.C.2017-06-26T11:50:06Z2013-04-08T09:34:39ZCDS support team

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

cds-question@unistra.frradial-velocityeclipsing-binary-starsvisible-astronomybroad-band-photometryccd-photometryHY Vir is found to be a double-lined F0m+F5 binary star with relatively shallow (0.3mag) partial eclipses. Previous studies of the system are improved with 7509 differential photometric observations from the URSA WebScope and 8862 from the NFO (New Forest Observatory) WebScope, and 68 high-resolution spectroscopic observations from the Tennessee State University 2m automatic spectroscopic telescope, and the 1m coude-feed spectrometer at Kitt Peak National Observatory (KPNO). Very accurate (better than 0.5%) masses and radii are determined from analysis of the new light curves and radial velocity curves. Theoretical models match the absolute properties of the stars at an age of about 1.35Gy.2011AJ....142..185Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/142/185CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/gcvs : General Catalogue of Variable Stars (Samus+ 2007-2012)B/sb9 : 9th Catalogue of Spectroscopic Binary Orbits (Pourbaix+ 2004-2013)I/259 : The Tycho-2 Catalogue (Hog+ 2000)III/249 : Stellar radial velocities bibliographic catalog (Malaroda+, 2006)II/271 : TASS Mark IV patches photometric catalog, version 2 (Droege+, 2007)J/A+A/446/785 : Catalogue of eclipsing variables (Malkov+, 2006)J/A+A/467/1215 : Bet Aur light curves (Southworth+, 2007)J/AcA/54/207 : Ephemerids of eclipsing binaries (Kreiner, 2004)J/AJ/138/1622 : Absolute properties of LV Her (Torres+, 2009)J/A+A/546/A61 : Radial velocities for XHIP catalogue (de Bruijne+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/142/185https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/142/185http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/142/185https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/142/185https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/142/185http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/142/185GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AJ/142/185/table1Radial velocities of HY VirrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJD[55244.8/55738.8] Heliocentric Julian Date; HJD-2400000dtime.epochdoublef_HJD[ab] Flag on observation (1)meta.codecharPhase[0/1] Orbital Phasetime.phasefloatRV1[-109.5/83.8] Primary Radial Velocitieskm/sspect.dopplerVelocfloatO-C1[-3.1/2.3] Primary O-C residualskm/sstat.fit.residual;stat.fit.omcfloatRV2[-137.8/114] Secondary Radial Velocitieskm/sspect.dopplerVelocfloatO-C2[-4.5/3.7] Secondary O-C residualskm/sstat.fit.residual;stat.fit.omcfloatJ/AJ/142/185/table4URSA Webscope differential photometry of HY VirrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPhase[0/1] Orbital Phasetime.phasedoubleDVmag[-0.68/-0.322] URSA differential V band magnitudemagphot.mag;em.opt.V;arith.difffloatHJD[54943.6/55744.7] Heliocentric Julian Date; HJD-2400000dtime.epochdoubleJ/AJ/142/185/table5NFO (New Forest Observatory) differential photometry of HY VirrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPhase[0/1] Orbital Phasetime.phasedoubleDVmag[-0.694/-0.343] NFO differential V band magnitudemagphot.mag;em.opt.V;arith.difffloatHJD[54940.7/55733.8] Heliocentric Julian Date; HJD-2400000dtime.epochdouble