J/A+A/566/A128ivo://CDS.VizieR/J/A+A/566/A128doi:10.26093/cds/vizier.35660128CDSLohr M.E.Norton A.J.Anderson D.R.Collier Cameron A.Faedi F.,Haswell C.A.Hellier C.Hodgkin S.T.Horne K.Kolb U.C.Maxted P.F.L.,Pollacco D.Skillen I.Smalley B.West R.G.Wheatley P.J.2018-01-04T08:21:41Z2014-06-25T08:29:52ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsvariable-starsephemeridesPeriod or amplitude variations in eclipsing binaries may reveal the presence of additional massive bodies in the system, such as circumbinary planets. Here, we have studied twelve previously-known eclipsing post-common-envelope binaries for evidence of such light curve variations, on the basis of multi-year observations in the SuperWASP archive. The results for HW Vir provided strong evidence for period changes consistent with those measured by previous studies, and help support a two-planet model for the system. ASAS J102322-3737.0 exhibited plausible evidence for a period increase not previously suggested; while NY Vir, QS Vir and NSVS 14256825 afforded less significant support for period change, providing some confirmation to earlier claims. In other cases, period change was not convincingly observed; for AA Dor and NSVS 07826147, previous findings of constant period were confirmed. This study allows us to present hundreds of new primary eclipse timings for these systems, and further demonstrates the value of wide-field high-cadence surveys like SuperWASP for the investigation of variable stars.2014A&A...566A.128Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/566/A128CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/566/A128https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/566/A128http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/566/A128https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/566/A128https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/566/A128http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/566/A128GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/566/A128/stars (List of studied stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/566/A128/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/566/A128/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/566/A128/stars?GETtext/xml+votable180.050000true82.9180833-69.88391670.0055555555555555566/9775 11015 13339 14779 25666 25845 26112 30168 33097 38667 38857https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/566/A128?format=asciidefaultJ/A+A/566/A128/starsList of studied starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainN.gNumber of good times of minima for the starmeta.numberintFile.gName of the table with Good times of minimameta.id;meta.filecharN.eNumber of extra times of minima for the starmeta.numberintFile.eName of the table with Extra timesmeta.id;meta.filecharSimbadSimbad column added by the CDSmeta.ref.urlchar