J/AJ/157/184ivo://CDS.VizieR/J/AJ/157/184doi:10.26093/cds/vizier.51570184CDSSong S.Mai X.Mutel R.L.Pulley D.Faillace G.Watkins A.2019-11-22T13:51:54Z2019-08-06T12:29:33ZCDS support team

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

cds-question@unistra.freclipsing-binary-starssubdwarf-starsWe report 18 new primary minima timing observations of the short-period eclipsing binary system NY Virginis. We combined these minima with previously published primary minima to update circumbinary exoplanet models in this system based on O-C timing variations. We performed a nonlinear least-squares minimization search using a quadratic ephemeris and either one or two exoplanets. The only model with an acceptable fit includes a period derivative P=2.83x10^-12^ and two planets in eccentric orbits e=0.15, 0.15 with minimum masses of 2.7 and 5.5 Jovian masses. Analysis of the orbit stability shows that this solution is stable for at least 10^8^ years, but a small increase in eccentricity (e>=0.20) for either planet renders the orbits unstable in less than 10^6^ years. A number of model parameters are significantly degenerate, so additional observations are required to determine planetary parameters with high statistical confidence.2019AJ....157..184Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/157/184CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/611/A48 : Seven sdB eclipsing binaries data (Pulley+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/157/184https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/157/184http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/157/184https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/157/184https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/157/184http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/157/184GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/AJ/157/184/table1NY Vir primary mid-eclipse timesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJD[2450223.36202/2458236.85791] Observed eclipse time of NY Vir (1)dtime.epochdoublee_BJD[1e-05/0.00015] Uncertainty in BJDdstat.errordoubleObsObserver/origin of the data (2)meta.codechar