J/AcA/51/175ivo://CDS.VizieR/J/AcA/51/175doi:10.26093/cds/vizier.120510175CDSWozniak P.R.Udalski A.Szymanski M.Kubiak M.Pietrzynski G.,Soszynski I.Zebrun K.2025-09-25T20:14:42Z2007-11-07T20:33:51ZCDS support team

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

cds-question@unistra.frgravitational-lensingWe present a sample of microlensing events discovered in the Difference Image Analysis (DIA) of the OGLE-II images collected during three observing seasons, 1997-1999. 4424 light curves pass our criteria on the presence of a brightening episode on top of a constant baseline. Among those, 512 candidate microlensing events were selected visually. We designed an automated procedure, which unambiguously selects up to 237 best events. Including eight candidate events recovered by other means, a total of 520 light curves are presented in this work.2001AcA....51..175Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AcA/51/175CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/313/841 : MACHO LMC No.1 microlensing event (Dominik+, 1996)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AcA/51/175https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AcA/51/175http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AcA/51/175https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AcA/51/175https://vizier.iucaa.in/viz-bin/votable?-source=J/AcA/51/175http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AcA/51/175GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AcA/51/175/tables (All microlensing events)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AcA/51/175/tables?https://vizier.iucaa.in/viz-bin/conesearch/J/AcA/51/175/tables?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AcA/51/175/tables?GETtext/xml+votable180.050000true270.5298333-30.03658330.005555555555555556Cone search capability for table J/AcA/51/175/table1 (OGLE-II bulge fields)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AcA/51/175/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AcA/51/175/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AcA/51/175/table1?GETtext/xml+votable180.050000true270.635417-29.9613890.0055555555555555565/7205 7216-7217 6/28704 28706-28707 28713 28716-28717 28719 28725 28727-28728 28730-28731 28734-28735 28768 28770 28776 28778-28779 28819 28828 28857 28880 28882-28883 28887 28908 28910-28911 29059 29062 29065 29068 42349 42351https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AcA/51/175?format=asciiOpticaldefaultJ/AcA/51/175/tablesAll microlensing eventsl_I0Limit flag on I0meta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField designation (scNN)meta.id;obs.fieldcharDIADIA star number in the field (1)meta.id;meta.mainintXposX position (2)pixpos.cartesian.x;instr.detfloatYposY position (2)pixpos.cartesian.y;instr.detfloatRA2000Right ascension (2000)pos.eq.ra;meta.mainDE2000Declination (2000)pos.eq.dec;meta.mainDist1Centroid distance between the variable and the nearest object on the reference frame detected with DoPhotpos.angDistancefloatFlux1Flux of the nearest star on the reference framephot.flux.density;em.optfloatm(OGLE)Zero point offset between DIA fluxes and OGLE database (varies with X, Y) m(OGLE)=m(Zero)-2.5*log(flux)magstat.fit;arith.zpfloatDet[234] Flag for detection method (3)meta.notecharF0Baseline difference fluxinstr.baseline;arith.diffdoubleF1Lensed fluxphot.fluxdoubleu0Impact parameter (units of Einstein radius)src.impactParamdoublet0Einstein ring crossing timestime.crossingfloattmaxMoment of maximum light (HJD-2450000)dtime.epochfloatI0Baseline I magnitudemagphot.mag;em.opt.IfloatfRatio of the lensed flux to the total baseline fluxphot.flux;arith.ratiodoubleOGLE? OGLE numbermeta.idintnullableDist? Distance between identified positions (1pix=0.4")pixpos;arith.difffloatnullableJ/AcA/51/175/table1OGLE-II bulge fieldsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField number (scNN)meta.id;obs.fieldcharprimaryRA2000Right ascension (2000)pos.eq.ra;meta.mainDE2000Declination (2000)pos.eq.dec;meta.mainGLON[-12/11] Galactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latfloatNobsNumber of observationsmeta.numberint