J/A+A/563/A120ivo://CDS.VizieR/J/A+A/563/A120doi:10.26093/cds/vizier.35630120CDSHarmanec P.Holmgren D.E.Wolf M.Bozic H.Guinan E.F.Kang Y.W.,Mayer P.McCook G.P.Nemravova J.Yang S.Slechta M.Ruzdjak D.,Sudar D.Svoboda P.2018-09-12T14:04:23Z2014-03-21T08:10:07ZCDS support team

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

cds-question@unistra.frspectroscopic-binary-starsinfrared-photometryvisible-astronomybroad-band-photometryRapid advancements in light-curve and radial-velocity curve modelling, as well as improvements in the accuracy of observations, allow more stringent tests of the theory of stellar evolution. Binaries with rapid apsidal advance are particularly useful in this respect since the internal structure of the stars can also be tested. Thanks to its long and rich observational history and rapid apsidal motion, the massive eclipsing binary Y Cyg represents one of the cornerstones of critical tests of stellar evolutionary theory for massive stars. Nevertheless, the determination of the basic physical properties is less accurate than it could be given the existing number of spectral and photometric observations. Our goal is to analyse all these data simultaneously with the new dedicated series of our own spectral and photometric observations from observatories widely separated in longitude.2014A&A...563A.120Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/563/A120CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/563/A120https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/563/A120http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/563/A120https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/563/A120https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/563/A120http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/563/A120GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapInfraredOpticaldefaultJ/A+A/563/A120/table4All 5146 individual photometric observations of Y CygrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRJD[20777/54406] Heliocentric Julian date (HJD-2400000.0)dtime.epochdoublemagObserved magnitude of Y Cyg in Bandmagphot.magfloatw_magWeight of the data pointstat.weightfloatDatasetNumber of dataset (1)meta.numberintBand[3/6] Observad band code (3 = V (or visual), 4 = B, 5 = U, 6 = R) (2)instr.bandpassintJ/A+A/563/A120/table5Observed primary and secondary minima of Y CygrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRJDHeliocentric Julian date (HJD-2400000.0)dtime.epochdoublermsEstimated error of the minimum timedstat.error;time.epoch;stat.minfloatwWeight of the minimumstat.weight;phys.atmol.weight;stat.minfloatCycleEpoch of the minimum (1)meta.number;time.perioddouble