J/ApJ/636/240ivo://CDS.VizieR/J/ApJ/636/240doi:10.26093/cds/vizier.16360240CDSSumi T.Wozniak P.R.Udalski A.Szymanski M.Kubiak M.Pietrzynski G.,Soszynski I.Zebrun K.Szewczyk O.Wyrzykowski L.Paczynski B.2007-07-02T09:41:32Z2007-07-02T09:39:00ZCDS support team

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

cds-question@unistra.frgravitational-lensingvariable-starsphotometryWe present a measurement of the microlensing optical depth toward the Galactic bulge based on 4 years of the OGLE-II survey. We consider only bright sources in the extended red clump giant (RCG) region of the color-magnitude diagram, in 20 bulge fields covering ~5deg^2^ between 0{deg}<l<3{deg} and -4{deg}<b<-2{deg}. Using a sample of 32 events we find {tau}=2.55x10^-6^ at (l,b)=(1.16{deg},-2.75{deg}).2006ApJ...636..240Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/636/240CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toftp://bulge.princeton.edu/ogle/ogle2/ : OGLE II RepositoryJ/A+A/454/185 : Galactic Bulge microlensing optical depth (Hamadache+, 2006)J/MNRAS/348/1439 : OGLE II Galactic center proper motions (Sumi+, 2004)J/AcA/51/175 : OGLE-II DIA microlensing events (Wozniak+, 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/636/240https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/636/240http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/636/240https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/636/240https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/636/240http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/636/240GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/636/240/tablea1 (All 122 candidates with microlensing parameters fitted with blending)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/636/240/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/636/240/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/636/240/tablea1?GETtext/xml+votable180.050000true270.6037083-29.97894440.005555555555555556Cone search capability for table J/ApJ/636/240/tablea2 (All 122 candidates with microlensing parameters fitted without blending)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/636/240/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/636/240/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/636/240/tablea2?GETtext/xml+votable180.050000true270.6037083-29.97894440.0055555555555555565/7205 7216 6/28734 28735 28778 28779 28868 28870https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/636/240?format=asciiOpticaldefaultJ/ApJ/636/240/tablea1All 122 candidates with microlensing parameters fitted with blendinge1tE1{sigma} asymmetric lower error of tEdstat.error;stat.mindoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintOGLEField number-Identification number (SCNN-NNNNNN)meta.id;meta.maincharprimaryLevelSelection criteria level (1)meta.code.qualintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainXposX pixel positionpixpos.cartesian.xfloatYposY pixel positionpixpos.cartesian.yfloatImagThe I band magnitudemagphot.mag;em.opt.Ifloat(V-I)The (V-I) color indexmagphot.color;em.opt.V;em.opt.IfloatI0magExtinction corrected I band magnitudemagphot.mag;em.opt.Ifloat(V-I)0Extinction corrected (V-I) color indexmagphot.color;em.opt.V;em.opt.Ifloatt0Time of maximum magnification (HJD-2450000.0)dtime.epochdoubletEEvent time-scaledtime.intervaldoubleuminMinimum impact parameter in units of the Einstein radius R_E_src.impactParamdoubleAmaxMaximum magnificationphot.mag;arith.ratiodoubleFsBaseline source star flux fraction in ADUsphot.flux;em.X-raydoubleFbBaseline blended background star flux in ADUsinstr.backgrounddoubleIsBest fit source I band magnitudemagphot.mag;em.opt.Ifloatchi2{Chi}^2^ of the the model fitstat.fit.param;meta.modelleddoubleNdataNumber of data points in light curvemeta.numberintredchi2Reduced {Chi}^2^ of the the model fitstat.fit.chi2;stat.fit.param;meta.modelledfloatsigmaxMaximum Significance of the data points.stat.fit.goodnessfloatsumsigIntegrated significance of the peakstat.fit.goodnessdoublee_t01{sigma} symmetric error of t0dstat.errordoublee1t01{sigma} asymmetric lower error of t0dstat.error;stat.mindoublee2t01{sigma} asymmetric upper error of t0dstat.error;stat.maxdoublee_tE1{sigma} symmetric error of tEdstat.errordoublee2tE1{sigma} asymmetric upper error of tEdstat.error;stat.maxdoublee_umin1{sigma} symmetric error of uminstat.errordoublee1umin1{sigma} asymmetric lower error of uminstat.errordoublee2umin1{sigma} asymmetric upper error of uminstat.errordoublee_Fs1{sigma} symmetric error of Fs in ADUsstat.errordoublee1Fs1{sigma} asymmetric lower error of Fsstat.errordoublee2Fs1{sigma} asymmetric upper error of Fsstat.errordoublee_Fb1{sigma} symmetric error of Fb in ADUsstat.errordoublee1Fb1{sigma} asymmetric lower error of Fbstat.errordoublee2Fb1{sigma} asymmetric upper error of Fbstat.errordoublee_Is1{sigma} asymmetric lower error of Ismagstat.errorfloatE_Is1{sigma} asymmetric upper error of Ismagstat.error;stat.maxfloatNdatapNumber of data points in the peak within 5tEmeta.numberintredchi2pReduced {Chi}^2^ of the model fit in the peakstat.fit.param;meta.modelleddoubleIs0magExtinction corrected I band magnitude of sourcemagphot.mag;em.opt.Ifloate_Is0mag1{sigma} asymmetric lower error of Is0magstat.error;phot.magfloatE_Is0mag1{sigma} asymmetric upper error of Is0magstat.error;stat.maxfloatfSBlending fraction Fs/(Fs+Fb)stat.fit.paramdoublee1fS1{sigma} asymmetric lower error of fSstat.errorfloate2fS1{sigma} asymmetric upper error of fSstat.errorfloatJ/ApJ/636/240/tablea2All 122 candidates with microlensing parameters fitted without blendingrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintOGLEField number-Identification number (SCNN-NNNNNN)meta.id;meta.maincharLevelSelection criteria level (1)meta.code.qualintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainXposX pixel positionpixpos.cartesian.xfloatYposY pixel positionpixpos.cartesian.yfloatImagThe I band magnitudemagphot.mag;em.opt.Ifloat(V-I)The (V-I) color indexmagphot.color;em.opt.V;em.opt.IfloatI0magExtinction corrected I band magnitudemagphot.mag;em.opt.Ifloat(V-I)0Extinction corrected (V-I) color indexmagphot.color;em.opt.V;em.opt.Ifloatt0Time of maximum magnification (HJD-2450000.0)dtime.epochdoubletEEvent time-scaledtime.intervaldoubleuminMinimum impact parameter in units of the Einstein radius R_E_src.impactParamdoubleAmaxMaximum magnificationphot.mag;arith.ratiodoubleFsBaseline source star flux fraction in ADUsphot.flux;em.X-raydoubleFbBaseline blended background star flux in ADUsinstr.backgrounddoubleIsBest fit source I band magnitudemagphot.mag;em.opt.Ifloatchi2{Chi}^2^ of the the model fitstat.fit.param;meta.modelleddoubleNdataNumber of data points in light curvemeta.numberintredchi2Reduced {Chi}^2^ of the the model fitstat.fit.chi2;stat.fit.param;meta.modelledfloatsigmaxMaximum Significance of the data points.stat.fit.goodnessfloatsumsigIntegrated significance of the peakstat.fit.goodnessdoublee_t01{sigma} symmetric error of t0dstat.errordoublee1t01{sigma} asymmetric lower error of t0dstat.error;stat.mindoublee2t01{sigma} asymmetric upper error of t0dstat.error;stat.maxdoublee_tE1{sigma} symmetric error of tEdstat.errordoublee1tE1{sigma} asymmetric lower error of tEdstat.error;stat.mindoublee2tE1{sigma} asymmetric upper error of tEdstat.error;stat.maxdoublee_umin1{sigma} symmetric error of uminstat.errordoublee1umin1{sigma} asymmetric lower error of uminstat.errordoublee2umin1{sigma} asymmetric upper error of uminstat.errordoublee_Fs1{sigma} symmetric error of Fs in ADUsstat.errordoublee1Fs1{sigma} asymmetric lower error of Fsstat.errordoublee2Fs1{sigma} asymmetric upper error of Fsstat.errordoublee_Fb1{sigma} symmetric error of Fb in ADUsstat.errordoublee1Fb1{sigma} asymmetric lower error of Fbstat.errordoublee2Fb1{sigma} asymmetric upper error of Fbstat.errordoublee_Is1{sigma} asymmetric lower error of Ismagstat.errorfloatE_Is1{sigma} asymmetric upper error of Ismagstat.error;stat.maxfloatNdatapNumber of data points in the peak within 5tEmeta.numberintredchi2pReduced {Chi}^2^ of the model fit in the peakstat.fit.param;meta.modelleddoubleIs0magExtinction corrected I band magnitude of sourcemagphot.mag;em.opt.Ifloate_Is0mag1{sigma} asymmetric lower error of Is0magstat.error;phot.magfloatE_Is0mag1{sigma} asymmetric upper error of Is0magstat.error;stat.maxfloatfSBlending fraction Fs/(Fs+Fb)stat.fit.paramdoublee1fS1{sigma} asymmetric lower error of fSstat.errorfloate2fS1{sigma} asymmetric upper error of fSstat.errorfloatJ/ApJ/636/240/tablea5Detection efficiencies for each field with blendingrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldName of file (SCNN)obs.fieldchartEiInteger value of 10*log of the event time-scaletime.intervalintlog(tE)Log of the event time-scale (1)log(d)time.intervalfloattEEvent time-scaledtime.intervaldoubleNoutNumber of output artificial eventsmeta.numberintNinNumber of input artificial eventsmeta.numberintDeffDetection efficiencystat.paramdoubleJ/ApJ/636/240/tablea3Cross-identification of candidates with other sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintOGLEField number-Identification number (SCNN-NNNNNN)meta.id;meta.maincharONameOther source identification(s) (1)meta.idcharEffEfficiency of field (from tablea5)meta.ref.urlcharLCLight curve of the eventmeta.ref.urlchar