J/AJ/139/1801ivo://CDS.VizieR/J/AJ/139/1801doi:10.26093/cds/vizier.51391801CDSYuan J.2017-06-13T11:08:42Z2012-06-12T15:53:04ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsccd-photometryinfrared-photometryvisible-astronomybroad-band-photometryNew CCD photometric observations of the chromospherically active binary XY Ursae Majoris (XY UMa) were obtained every year since 2006. The light curves obtained in the late Spring of 2006 show obvious variations on a short timescale, while the light curves obtained in 2008 December do not. But both sets of light curves are markedly asymmetric, and were analyzed using the 2003 version of the Wilson-Devinney code with spot model. New absolute physical parameters are obtained.2010AJ....139.1801Yhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/139/1801CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/139/1801https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/139/1801http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/139/1801https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/139/1801https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/139/1801http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/139/1801GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/AJ/139/1801/table2BVRI photometry of XY UMarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFilt[BVRI] Filter used in the observationinstr.setup;obscharHJDHeliocentric Julian Datedtime.epochdoubleDmagXY UMa and comparison star magnitude differencemagphot.mag;arith.difffloat