<?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?>
<ri:Resource created="2015-03-04T15:31:04Z" status="active" updated="2025-06-13T15:25:00Z" version="1.2" xmlns:cs="http://www.ivoa.net/xml/ConeSearch/v1.0" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:vr="http://www.ivoa.net/xml/VOResource/v1.0" xmlns:vs="http://www.ivoa.net/xml/VODataService/v1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.ivoa.net/xml/ConeSearch/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/ConeSearch.xsd http://www.ivoa.net/xml/VOResource/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VOResource.xsd http://www.ivoa.net/xml/VODataService/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/VODataService.xsd" xsi:type="vs:CatalogService"><title>OGLE-III Galactic bulge microlensing events</title><shortName>J/ApJS/216/12</shortName><identifier>ivo://CDS.VizieR/J/ApJS/216/12</identifier><altIdentifier>doi:10.26093/cds/vizier.22160012</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Wyrzykowski L.</name></creator><creator><name>Rynkiewicz A.E.</name></creator><creator><name>Skowron J.</name></creator><creator><name>Kozlowski S.</name></creator><creator><name>Udalski A.,Szymanski M.K.</name></creator><creator><name>Kubiak M.</name></creator><creator><name>Soszynski I.</name></creator><creator><name>Pietrzynski G.</name></creator><creator><name>Poleski R.,Pietrukowicz P.</name></creator><creator><name>Pawlak M.</name></creator><date role="Updated">2017-06-12T08:25:05Z</date><date role="Created">2015-03-04T15:31:04Z</date><contact><name>CDS support team</name><address>CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France</address><email>cds-question@unistra.fr</email></contact></curation><content><subject>gravitational-lensing</subject><subject>milky-way-galaxy</subject><description>We present and study the largest and most comprehensive catalog of microlensing events ever constructed. The sample of standard microlensing events comprises 3718 unique events from 2001-2009 with 1409 events that had not been detected before in real-time by the Early Warning System of the Optical Gravitational Lensing Experiment. The search pipeline uses machine learning algorithms to help find rare phenomena among 150 million objects and to derive the detection efficiency. Applications of the catalog can be numerous, from analyzing individual events to large statistical studies of the Galactic mass, kinematics distributions, and planetary abundances. We derive maps of the mean Einstein ring crossing time of events spanning 31 deg^2^ toward the Galactic center and compare the observed distributions with the most recent models. We find good agreement within the observed region and we see the signature of the tilt of the bar in the microlensing data. However, the asymmetry of the mean timescales seems to rise more steeply than predicted, indicating either a somewhat different orientation of the bar or a larger bar width. The map of events with sources in the Galactic bulge shows a dependence of the mean timescale on the Galactic latitude, signaling an increasing contribution from disk lenses closer to the plane relative to the height of the disk. Our data present a perfect set for comparing and enhancing new models of the central parts of the Milky Way and creating a three-dimensional picture of the Galaxy.</description><source format="bibcode">2015ApJS..216...12W</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/216/12</referenceURL><type>Catalog</type><contentLevel>Research</contentLevel><relationship><relationshipType>IsServedBy</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/TAP">TAP VizieR generic service</relatedResource></relationship><relationship><relationshipType>IsServedBy</relationshipType><relatedResource>Conesearch service</relatedResource></relationship><relationship><relationshipType>related-to</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/J/AcA/63/21">J/AcA/63/21 : VI light curves of Galactic LPVs (Soszynski+, 2013)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/other/Nat/481.167">J/other/Nat/481.167 : 2002-2007 PLANET microlensing events (Assan+, 2012)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/711/L48">J/ApJ/711/L48 : 2008 OGLE Bulge microlensing alerts (Cohen+, 2010)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/475/1159">J/A+A/475/1159 : Supervised classification of var. stars (Debosscher+, 2007)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/466/157">J/A+A/466/157 : Bulge Microlensing Events (Soto+, 2007)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/454/185">J/A+A/454/185 : EROS-2 microlensing parameters (Hamadache+, 2006)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/636/240">J/ApJ/636/240 : OGLE II microlensing parameters (Sumi+, 2006)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/631/906">J/ApJ/631/906 : MACHO Galactic Bulge microlensing events (Thomas+, 2005)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/MNRAS/343/1131">J/MNRAS/343/1131 : 1998-2000 OGLE events microlensing limits (Tsapras+, 2003)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AcA/53/1">J/AcA/53/1 : OGLE eclipsing binaries in LMC (Wyrzykowski+, 2003)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AcA/52/217">J/AcA/52/217 : OGLE II. VI photometry of Galactic Bulge (Udalski+, 2002)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AcA/51/175">J/AcA/51/175 : OGLE-II DIA microlensing events (Wozniak+, 2001)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AcA/50/421">J/AcA/50/421 : OGLE-II DIA BUL_SC1 field (Wozniak, 2000)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AcA/50/1">J/AcA/50/1 : OGLE microlensing events in Galactic Bulge (Udalski+, 2000)</relatedResource><relatedResource>http://ogle.astrouw.edu.pl/ : OGLE home page</relatedResource><relatedResource>ftp://ftp.astrouw.edu.pl/ogle/ogle3/blg_tau/ : OGLE-III Galactic Bulge</relatedResource></relationship></content><rights>https://cds.unistra.fr/vizier-org/licences_vizier.html</rights><capability><interface xsi:type="vr:WebBrowser"><accessURL use="full">https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/216/12</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/216/12</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/216/12</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/216/12</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/216/12</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/216/12</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface></capability><capability standardID="ivo://ivoa.net/std/TAP#aux"><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://tapvizier.cds.unistra.fr/TAPVizieR/tap</accessURL></interface></capability><capability xsi:type="cs:ConeSearch" standardID="ivo://ivoa.net/std/ConeSearch"><description>Cone search capability for table J/ApJS/216/12/table3 (*OGLE-III candidate standard events (class B))</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/216/12/table3?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/216/12/table3?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/216/12/table3?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>268.05375</ra><dec>-30.2273611</dec><sr>0.005555555555555556</sr></testQuery></capability><capability xsi:type="cs:ConeSearch" standardID="ivo://ivoa.net/std/ConeSearch"><description>Cone search capability for table J/ApJS/216/12/classA (OGLE-III standard events of class A with Markov Chain Monte-Carlo (MCMC) microlensing parameters)</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/216/12/classA?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/216/12/classA?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/216/12/classA?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>267.9333333</ra><dec>-30.2890833</dec><sr>0.005555555555555556</sr></testQuery></capability><coverage><spatial>5/7179 7182 7183 7194 7205 7216 7217 7220 6/28706 28707 28710 28711 28713 28715 28722 28723 28726 28727 28770 28780 28782 28783 28801 28804 28805 28816 28817 28819 28828 28829 28857 28860 28872 28873 28876 28888 28905 28906 28907 28909 28910 28911 29250 29253</spatial><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/216/12?format=ascii</footprint><waveband>Optical</waveband></coverage><tableset><schema><name>default</name><table><name>J/ApJS/216/12/table3</name><description>*OGLE-III candidate standard events (class B)</description><column><name>Field</name><description>Field identifier (BLGFFF.F)</description><ucd>meta.id;obs.field</ucd><dataType xsi:type="vs:VOTableType" arraysize="8*">char</dataType></column><column><name>ID</name><description>[90001/90158] OGLE identifier; OGLEIII-ULENS-</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>primary</flag></column><column><name>RAJ2000</name><description>[17/18] Hour of Right Ascension (J2000)</description><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DEJ2000</name><description>[22/36] Degree of Declination (J2000)</description><ucd>pos.eq.dec;meta.main</ucd></column><column><name>Star</name><description>[3390/261307] Star number</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>EWS</name><description>Early Warning System identifier (YYYY-BLG-NNN)</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="25*">char</dataType></column></table><table><name>J/ApJS/216/12/classA</name><description>OGLE-III standard events of class A with Markov Chain Monte-Carlo (MCMC) microlensing parameters</description><column><name>Seq</name><description>[1/3560] OGLE identifier; OGLEIII standard microlensing events (ULENS)</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>primary</flag></column><column><name>RAJ2000</name><description>[17/18] Hour of Right Ascension (J2000)</description><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DEJ2000</name><description>[22/36] Degree of Declination (J2000)</description><ucd>pos.eq.dec;meta.main</ucd></column><column><name>EWS</name><description>Early Warning System identifier (YYYY-BLG-NNN)</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="25*">char</dataType></column><column><name>Dup</name><description>Duplicate identifier (BLGFFF.F.NNNNNN)</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="15*">char</dataType></column><column><name>OGLE</name><description>The field-starno identifier (BLGFFF.F.NNNNNN; &lt;OGLE BLGFFF.F NNNNNN&gt; in Simbad)</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="15*">char</dataType></column><column><name>t0</name><description>Heliocentric Julian Date of time of peak maximum (HJD-2450000)</description><unit>d</unit><ucd>time.epoch;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>e_t0</name><description>Lower uncertainty in t0</description><unit>d</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>E_t0</name><description>Upper uncertainty in t0</description><unit>d</unit><ucd>stat.error;stat.max</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>tE</name><description>[1.4/393.2] Einstein radius crossing time</description><unit>d</unit><ucd>time.crossing</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_tE</name><description>Lower uncertainty in tE</description><unit>d</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>E_tE</name><description>Upper uncertainty in tE</description><unit>d</unit><ucd>stat.error;stat.max</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>mu0</name><description>[0/1.7] Impact parameter</description><ucd>src.impactParam</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>e_mu0</name><description>Lower uncertainty in mu0</description><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>E_mu0</name><description>Upper uncertainty in mu0</description><ucd>stat.error;stat.max</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>fS</name><description>[0.001/1.8] Blending fraction (ratio of lensed source flux to total blends' flux in the I band)</description><ucd>stat.fit.param</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>e_fS</name><description>Lower uncertainty in fS</description><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>E_fS</name><description>Upper uncertainty in fS</description><ucd>stat.error;stat.max</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>Imag</name><description>[13.1/20.8] The I band baseline magnitude</description><unit>mag</unit><ucd>phot.mag;em.opt.I</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>e_Imag</name><description>Lower uncertainty in Imag</description><unit>mag</unit><ucd>stat.error;phot.mag;em.opt.I</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>E_Imag</name><description>Upper uncertainty in Imag</description><unit>mag</unit><ucd>stat.error;stat.max</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>chi2</name><description>[120/342360] The {chi}^2^ fit</description><ucd>stat.fit.param;meta.modelled</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>DoF</name><description>[96/2535] Number of degrees of freedom</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Vmag</name><description>[14.3/22.6]? The V band magnitude</description><unit>mag</unit><ucd>phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>e_Vmag</name><description>[0.001/2.3]? Uncertainty in Vmag</description><unit>mag</unit><ucd>stat.error;phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column></table><table><name>J/ApJS/216/12/table4</name><description>Mean Time-scale Bins for OGLE-III Events</description><column><name>recno</name><description>Record number assigned by the VizieR team. Should Not be used for identification.</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>lbin</name><description>Central galactic longitude bin</description><unit>deg</unit><ucd>pos.galactic.lon</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>bbin</name><description>Central galactic latitude bin</description><unit>deg</unit><ucd>pos.galactic.lat</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>&lt;tE&gt;</name><description>[15.6/47.1] Mean Einstein radius crossing time</description><unit>d</unit><ucd>time.crossing</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>&lt;tE&gt;c</name><description>Efficiency corrected mean Einstein radius crossing time</description><unit>d</unit><ucd>time.crossing</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>&lt;tE&gt;G</name><description>Gaussian smoothed mean Einstein ring crossing time</description><unit>d</unit><ucd>time.crossing</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Nev</name><description>[6/98] Number of events</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column></table></schema></tableset></ri:Resource>