J/AcA/50/1ivo://CDS.VizieR/J/AcA/50/1doi:10.26093/cds/vizier.120500001CDSUdalski A.Zebrun K.Szymanski M.Kubiak M.Pietrzynski G.,Soszynski I.Wozniak P.2025-09-25T20:14:34Z2006-11-12T06:34:29ZCDS support team

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

cds-question@unistra.frgravitational-lensingWe present the Catalog of microlensing events detected toward the Galactic bulge in three observing seasons, 1997-1999, during the OGLE-II microlensing survey. The search for microlensing events was performed using a database of about 4x10^9^ photometric measurements of about 20.5 million stars from the Galactic bulge. The Catalog comprises 214 microlensing events found in the fields covering about 11 square degrees on the sky and distributed in different parts of the Galactic bulge. The sample includes 20 binary microlensing events, 14 of them are caustic crossing. In one case a double star is likely lensed. We present distribution of the basic parameters of microlensing events and show preliminary rate of microlensing in different regions of the Galactic bulge. The latter reveals clear dependence on the Galactic coordinates. The dependence on l indicates that the majority of lenses toward the Galactic bulge are located in the Galactic bar. Models of the Galactic bar seem to reasonably predict the observed spatial distribution of microlensing events in the Galactic bulge. All data presented in the Catalog and photometry of all events are available from the OGLE Internet archive.2000AcA....50....1Uhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AcA/50/1CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toftp://sirius.astrouw.edu.pl/ogle/ogle2 : OGLE2 Home PageJ/AcA/51/175 : OGLE-II DIA microlensing events (Wozniak+, 2001)J/MNRAS/343/1131 : 1998-2000 OGLE events microlensing limits (Tsapras+, 2003)J/ApJ/631/906 : MACHO Galactic Bulge microlensing events (Thomas+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AcA/50/1https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AcA/50/1http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AcA/50/1https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AcA/50/1https://vizier.iucaa.in/viz-bin/votable?-source=J/AcA/50/1http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AcA/50/1GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AcA/50/1/table2 (Parameters of the microlensing events)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AcA/50/1/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AcA/50/1/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AcA/50/1/table2?GETtext/xml+votable180.050000true270.6869167-29.97172220.005555555555555556Cone search capability for table J/AcA/50/1/table1 (Names and equatorial coordinates of the OGLE-II fields in the Galactic bulge)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AcA/50/1/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AcA/50/1/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AcA/50/1/table1?GETtext/xml+votable180.050000true270.635417-29.9613890.0055555555555555565/7179 7205 7216 6/28704 28706-28707 28725 28727-28728 28730-28731 28734-28735 28768 28770 28778-28779 28819 28828 28857 28868-28869 28880 28883 28887 28908 28910-28911 29059 29062 29065 29068 42349 42351https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AcA/50/1?format=asciiOpticaldefaultJ/AcA/50/1/table2Parameters of the microlensing eventsRemRemarksmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField designation (SCNN) (1)obs.fieldcharStarStar number, in the field (1)meta.id;obs.fieldintEWsEWs name when the microlensing event was detected in real timemeta.idcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainTmax? Moment of maximum brightness (HJD-2450000)dtime.epochdoublenullablee_Tmax? rms uncertainty on Tmaxdstat.errorfloatnullablet0? Time of Einstein radius crossingdtime.intervalfloatnullablee_t0? rms uncertainty on t0dstat.errorfloatnullablel_AmaxLimit flag on Amaxmeta.code.errorcharAmax? Magnification at maximum brightnessphot.flux;arith.ratiofloatnullablee_Amax? rms uncertainty on Amaxstat.errorfloatnullableImin? I-band baseline magnitudemagphot.mag;em.opt.Ifloatnullablee_Imin? rms uncertainty on Iminmagstat.errorfloatnullableFileNameName of the file containing the light curvemeta.id;meta.filecharJ/AcA/50/1/table1Names and equatorial coordinates of the OGLE-II fields in the Galactic bulgerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField designation (SCNN)obs.fieldcharprimaryRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainGLON[-12/11] Galactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latfloatNobsNumber of observationsmeta.numberint