J/other/NewA/17.ivo://CDS.VizieR/J/other/NewA/17.296CDSUlas B.Kalomeni B.Keskin V.Kose O.Yakut K.2018-02-12T08:45:34Z2011-12-06T12:05:17ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsvisible-astronomyWide-band photometryIn this study, we present long term photometric variations of the close binary system GO Cyg. Modelling of the system shows that the primary is filling Roche lobe and the secondary of the system is almost filling its Roche lobe. The physical parameters of the system are M_1_=3.0+/-0.2M_{sun}_, M_2_=1.3+/-0.1M_{sun}_, R_1_=2.50+/-0.12R_{sun}_, R_2_=1.75+/-0.09R_{sun}_, L_1_=64+/-9L_{sun}_, L_2_=4.9+/-0.7L_{sun}_, and a=5.5+/-0.3R_{sun}_. Our results show that GO Cyg is the most massive system near contact binary (NCB). Analysis of times of the minima shows a sinusoidal variation with a period of 92.3+/-0.5-years due to a third body whose mass is less than 2.3M_{sun}_. Finally a period variation rate of -1.4x10^-9^d/yr has been determined using all available light curves.2012NewA...17..296Uhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/NewA/17.296CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/other/NewA/17.46 : VRI light curves of V1191 Cyg (Ulas+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/NewA/17.296https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/NewA/17.296http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/NewA/17.296https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/NewA/17.296https://vizier.iucaa.in/viz-bin/votable?-source=J/other/NewA/17.296http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/NewA/17.296GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/other/NewA/17.296/table3Available light curves of GO Cyg that are collected from the literaturerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPlotPlot of the light curvesmeta.ref.urlcharLCLight curve designation (1)meta.idcharprimaryDateDate of observation (Year)time.epochcharJD1? Time interval (JD-2400000)dtime.epochfloatnullableJD2? Time interval (JD-2400000)dtime.epochfloatnullableFiltFilters usedinstr.bandpasscharTypeType of observation (pg, pe, ccd)meta.notecharCompComparison star(s)meta.id;meta.maincharNptsNumber of data points be filtersmeta.notecharData[Y/N] Data availabilitymeta.codecharJ/other/NewA/17.296/table5Available light curves datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLCLight curve designationmeta.idcharFilt[BV] Filterinstr.bandpasscharJD? Julian date (1)dtime.epochdoublenullablePhase? Orbital phase (1)time.phasefloatnullableDmagDifferential magnitude (2)magphot.mag;arith.difffloat