J/ApJ/788/41ivo://CDS.VizieR/J/ApJ/788/41doi:10.26093/cds/vizier.17880041CDSDong S.Katz B.Prieto J.L.Udalski A.Kozlowski S.Street R.A.,Bramich D.M.Tsapras Y.Hundertmark M.Snodgrass C.Horne K.,Dominik M.Figuera Jaimes R.2017-06-22T14:29:10Z2014-07-07T16:14:16ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsvariable-starsccd-photometryWe report the serendipitous discovery of a disk-eclipse system OGLE-LMC-ECL-11893. The eclipse occurs with a period of 468 days, a duration of about 15 days, and a deep (up to {Delta}m_I_~1.5), peculiar, and asymmetric profile. A possible origin of such an eclipse profile involves a circumstellar disk. The presence of the disk is confirmed by the H-alpha line profile from the follow-up spectroscopic observations, and the star is identified as Be/Ae type. Unlike the previously known disk-eclipse candidates, the eclipses of OGLE-LMC-ECL-11893 retain the same shape throughout the span of ~17yr (13 orbital periods), indicating no measurable orbital precession of the disk.2014ApJ...788...41Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/788/41CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/AcA/61/103 : VI light curves of LMC eclipsing binaries (Szymanski+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/788/41https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/788/41http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/788/41https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/788/41https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/788/41http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/788/41GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/788/41/table1CCD time-series B, V, R, and I photometry for OGLE-LMC-ECL-11893 from the LCOGT (Las Cumbres Observatory Global Telescope Network, CA)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTelNameLCOGT site/dome/telescope/instrument codemeta.codecharFlt[BVRI] Observation filterobs.param;obscharHJD[2456343/2456373] Heliocentric Julian date at mid-exposuredtime.epochdoublemagInstrumental magnitude in Flt filtermagphot.magfloate_magMagnitude uncertaintymagstat.error;phot.magfloatFrefReference flux (in ADU/s unit)s**-1phot.flux.density;em.optfloate_FrefReference flux uncertainty (in ADU/s unit)s**-1stat.errorfloatDFluxDifference flux (in ADU/s unit)s**-1phot.flux;arith.ratiodoublee_DFluxDifference flux uncertainty (in ADU/s unit)s**-1stat.errorfloatpPhotometric scale factorarith.factorfloat