J/AJ/149/48ivo://CDS.VizieR/J/AJ/149/48doi:10.26093/cds/vizier.51490048CDSSamec R.G.Clark J.D.Van Hamme W.Faulkner D.R.2017-06-22T14:28:33Z2015-02-20T10:03:50ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsinfrared-photometryvisible-astronomybroad-band-photometryComplete Bessel BVRI light curves of ZZ Eri [2MASSJ04130109-1044545, HV 6280, NSVS 14888164; IRCS position 04:13:01.10-10:44:54.5; V=13.9-14.4-15.0] are observed and analyzed. The system is a southern pre-contact W UMa binary. Its light curve has the appearance of an Algol (EA) light curve, however, it is made up of dwarf solar-type components with a period of only 0.4521days. Our 34year period study yields a sinusoidal fit or an increasing quadratic fit. The sinusoid may indicate that a third body is orbiting the close binary. The lower-limit mass of the third body is near that of the brown dwarf limit (0.095M_{sun}_). Also included is an improved ephemeris, a mass ratio search, and a simultaneous BVRI Wilson-Devinney solution.2015AJ....149...48Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/149/48CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/gcvs : General Catalogue of Variable Stars (Samus+ 2007-2013)J/AJ/147/3 : BV(RI)c light curves of V2421 Cyg (Samec+, 2014)J/AJ/145/14 : BV(RI)c light curves of V1043 Cas (Samec+, 2013)J/PASP/124/693 : HO Psc UBV(RI)c light curves (Samec+, 2012)J/A+A/446/785 : Catalogue of eclipsing variables (Malkov+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/149/48https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/149/48http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/149/48https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/149/48https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/149/48http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/149/48GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/AJ/149/48/table1Photometry of ZZ ErirecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFlt[BVRI] Filter (Bessel BVRI)meta.id;instr.filtercharDmag[0.7/2.057] {Delta} magnitude in Flt (1)magphot.mag;arith.difffloatHJD[10.7657/64.8689] Heliocentric Julian Date (HJD-2456200)dtime.epochfloat