J/AJ/147/148ivo://CDS.VizieR/J/AJ/147/148doi:10.26093/cds/vizier.51470148CDSLacy C.H.S.Torres G.Fekel F.C.Muterspaugh M.W.2017-07-06T06:25:35Z2014-10-07T14:34:32ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsradial-velocityccd-photometryAP And is a well-detached F5 eclipsing binary star for which only a very limited amount of information was available before this publication. We have obtained very extensive measurements of the light curve (19097 differential V magnitude observations) and a radial velocity curve (83 spectroscopic observations) which allow us to fit orbits and determine the absolute properties of the components very accurately: masses of 1.277+/-0.004 and 1.251+/-0.004M_{sun}_, radii of 1.233+/-0.006 and 1.1953+/-0.005R_{sun}_, and temperatures of 6565+/-150K and 6495+/-150K. The distance to the system is about 400+/-30pc. Comparison with the theoretical properties of the stellar evolutionary models of the Yonsei-Yale series of Yi et al. shows good agreement between the observations and the theory at an age of about 500 Myr and a slightly sub-solar metallicity.2014AJ....147..148Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/147/148CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/gcvs : General Catalogue of Variable Stars (Samus+ 2007-2013)J/AJ/147/1 : Spectroscopy and photometry of HP Aur (Lacy+, 2014)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/147/148https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/147/148http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/147/148https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/147/148https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/147/148http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/147/148GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AJ/147/148/table1Observed dates of minimum light for AP AndO-CThe (O-C) residualdstat.fit.residual;stat.fit.omcdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Date (HJD-2400000)dtime.epochdoublee_HJDUncertainty in HJDdstat.error;time.epochdoubleTypeEclipse type (1 or 2) (1)meta.noteintRefReference; in refs.dat filemeta.ref;pos.frameintJ/AJ/147/148/table2Heliocentric radial velocities for AP AndPhasePhase (2)time.phasefloate_RVA? Uncertainty in RVAkm/sstat.errorfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintInstFacility/Instrument used (1)instr.setupcharHJDHeliocentric Julian Date (HJD-2400000)dtime.epochdoubleRVARadial velocity of A componentkm/sphys.veloc;pos.heliocentricfloatRVBRadial velocity of B componentkm/sphys.veloc;pos.heliocentricfloate_RVB? Uncertainty in RVBkm/sstat.errorfloatnullableJ/AJ/147/148/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference numbermeta.id;meta.mainintprimaryBibCodeBibliographic codemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notecharJ/AJ/147/148/table4V-band differential photometry (variable-comps) of AP And from the URSA WebScope (at Kimpel Observatory, Arkansas)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPhaseOrbital phase (1)time.phasedoubleDVmagDifferential V band magnitudemagphot.mag;em.opt.V;arith.difffloatHJDHeliocentric Julian Date (HJD-2400000)dtime.epochdoubleJ/AJ/147/148/table5V-band differential photometry (variable-comps) of AP And from the NFO WebScope (near Silver City, New Mexico)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPhaseOrbital phase (1)time.phasedoubleDVmagDifferential V band magnitudemagphot.mag;em.opt.V;arith.difffloatHJDHeliocentric Julian Date (HJD-2400000)dtime.epochdouble