J/other/NewA/17.ivo://CDS.VizieR/J/other/NewA/17.46CDSUlas B.Kalomeni B.Keskin V.Kose O.Yakut K.2017-06-30T05:49:29Z2011-12-06T12:38:25ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsvariable-starslate-type-starsinfrared-photometryvisible-astronomyphotometryWe present the analysis of photometric and spectroscopic variation, and orbital period study of the late-type contact binary system V1191 Cyg. The system is found to be a contact binary system having strange configuration with very small mass ratio and short orbital period comparing with the other members of the same group. We determined a new set of stellar physical parameters for hot and cooler companion as M_h_=0.13(1)M_{sun}_, M_c_=1.29(8)M_{sun}_, R_h_=0.52(15)R_{sun}_, R_c_=1.31(18)R_{sun}_, L_h_=0.46(25)L_{sun}_, L_c_=2.71(80)L_{sun}_, and the separation between the components a=2.20(8)R_{sun}_ from the simultaneous solution of the light and radial velocity curves. Analyses of the mid-eclipses time of the system indicate a period increase of dP/dt=1.3(1)x10^-6^days/yr that can be interpreted in terms of the high mass transfer dM/dt=2.0(4)x10^-7^M_{sun}_/yr from the less massive component to the more massive one.2012NewA...17...46Uhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/NewA/17.46CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/other/NewA/17.296 : GO Cyg BV light curves (Ulas+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/NewA/17.46https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/NewA/17.46http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/NewA/17.46https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/NewA/17.46https://vizier.iucaa.in/viz-bin/votable?-source=J/other/NewA/17.46http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/NewA/17.46GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/other/NewA/17.46/table1Observational points of V1191 CygrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian datedtime.epochdoublePhaseOrbital phase (1)time.phasefloatDmagDifferential magnitude (2)magphot.mag;arith.difffloatFilt[BVR] Filtermeta.id;instr.filterchar