J/ApJ/631/906ivo://CDS.VizieR/J/ApJ/631/906doi:10.26093/cds/vizier.16310906CDSThomas C.L.Griest K.Popowski P.Cook K.H.Drake A.J.Minniti D.,Myer D.G.Alcock C.Allsman R.A.Alves D.R.Axelrod T.S.Becker A.C.,Bennett D.P.Freeman K.C.Geha M.Lehner M.J.Marshall S.L.,Nelson C.A.Peterson B.A.Quinn P.J.Stubbs C.W.Sutherland W.,Vandehei T.Welch D.L.(the Macho Collaboration)2017-06-27T06:37:49Z2008-06-03T09:50:31ZCDS support team

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

cds-question@unistra.frsurveysvariable-starsphotometryWe present a catalog of 450 relatively high signal-to-noise ratio microlensing events observed by the MACHO collaboration between 1993 and 1999. The events are distributed throughout our fields, and as expected, they show a clear concentration toward the Galactic center. No optical depth is given for this sample, since no blending efficiency calculation has been performed and we find evidence for substantial blending. In a companion paper we give optical depths for the subsample of events on clump giant source stars, where blending is a less significant effect. Several events with sources that may belong to the Sagittarius dwarf galaxy are identified. For these events even relatively low dispersion spectra could suffice to classify these events as either consistent with Sagittarius membership or as non-Sagittarius sources. Several unusual events, such as microlensing of periodic variable source stars, binary lens events, and an event showing extended source effects, are identified. We also identify a number of contaminating background events as cataclysmic variable stars.2005ApJ...631..906Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/631/906CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/562/337 : High proper-motion stars from MACHO (Alcock+, 2001)J/AcA/52/129 : DIA OGLE2 candidate variable stars catalog (Wozniak+ 2002)J/MNRAS/349/1059 : OGLE variables in Galactic bar (Wray+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/631/906https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/631/906http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/631/906https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/631/906https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/631/906http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/631/906GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/631/906/events (Even parameters, including non-microlensing events)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/631/906/events?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/631/906/events?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/631/906/events?GETtext/xml+votable180.050000true271.084375-27.41258330.005555555555555556Cone search capability for table J/ApJ/631/906/lcurves (List of light-curves (header of the files))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/631/906/lcurves?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/631/906/lcurves?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/631/906/lcurves?GETtext/xml+votable180.050000true271.084-27.41260.0055555555555555565/7191 7194 7195 7196 7199 7216 7217 7220 7221 6/28735 28747 28749 28750 28751 28760 28763 28769 28770 28771 28772 28773 28774 28788 28789 28790 28794 28795 28821 28823 28888 28889 28893 28960 29056 29058 29064 29065 29066 29161 29164 29166https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/631/906?format=asciiOpticaldefaultJ/ApJ/631/906/table5Alternative designations of our eventsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMACHOEvent name (field.tile.seq)meta.id;meta.maincharOgleOGLE designationmeta.idcharOGLEOGLE name as in Simbad (1)meta.idcharSimbadSimbad column added by the CDScharJ/ApJ/631/906/eventsEven parameters, including non-microlensing eventsAmaxMaximum amplificationsrc.var.amplitudedoubleV-Rc? The (V-Rc) color index at the basemagphot.color;em.opt.V;em.opt.RfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_MACHOSimbad column added by the CDSmeta.notecharMACHOEvent name (field.tile.seq)meta.id;meta.maincharprimaryOSimbad column added by the CDSmeta.ref.urlcharFlagFlag on the source identification (2)meta.code.errorcharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainVmag? The Johnson V band magnitude at the basemagphot.mag;em.opt.Vfloatnullablet0Time of maximum amplificationdtime.epochfloatthatEinstein ring diameter crossing timedtime.crossingfloatchi2The reduced chi^2^stat.fit.chi2floatGradeSubjective grade of event (3)stat.weightcharSelSelection criteria (4)meta.codecharNotesAdditional notes (5)meta.notecharLCDisplay the red and blue light curvemeta.ref.urlcharSimbadSimbad column added by the CDScharJ/ApJ/631/906/lcurvesList of light-curves (header of the files)<err>Red (or blue) average error in A-1 unitsphot.magdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFileNameName of the file in subdirectory lcmeta.id;meta.filecharBand[rb] Red (r) or blue (b) bandinstr.bandpasscharn_MACHOSimbad column added by the CDSmeta.ref.urlcharMACHOEvent name (field.tile.seq)meta.id;meta.mainchar<mag>Red (or blue) median magnitude of star in instrumental magnitudes (1)magphot.magfloatcatBitmapped analysis code lightcurve category (2)meta.codeintXposX positionpixpos.cartesian.x;instr.detfloatYposY positionpixpos.cartesian.y;instr.detfloat<err>rRobust red (or blue) average error (robust means removing 10% highest and lowest points)phot.magdoubletfiltTime of filter maximum (rough idea of where lightcurve peaks, in MACHO days)dtime.epochfloatchi2wChi^2^/degree-of-freedom of fit to constant lightcurvestat.fit.chi2doublechi2rRobust chi^2^/dof fit to constant starstat.fit.chi2doublenhipNumber of 2{sigma} high points under (triggered) filter areameta.numberintthatDuration of microlensing fit (time to cross Einstein ring diameter)dtime.crossingdoubleteDuration of fit microlensing fit (time above A=1.1)dtime.intervaldoubleA1max? Peak A-1 for mlc fit (joint red/blue fit)src.var.amplitudedoublenullablet0Time of mlc fit peak (JD-2448623.5)dtime.intervaldoubleA0Baseline Offset in microlensing fitinstr.baseline;arith.diffdoublechi2dofChi^2^/dof for microlensing fit to data (4 fit dof)stat.fit.chi2floatprobfitThe log(probability) of getting chi^2^ abovestat.probabilitydoubledelc2Difference between microlensing fit chi^2^ and chi^2^ of fit to constant starstat.fit.chi2doublefnhipNumber of 1-sigma high points under fit peak (i.e. with fit A>1.1)meta.numberfloatfachromLogprob of achromaticity under peak (fit to B-R=0)stat.fit.paramdoublebefaftCoded number of points before and after fit peak 1000*(# before peak) + (# after peak)stat.fit.paramintcrdrejFraction of points rejected due to sodophot crowding measurestat.value;arith.ratiodoublepchi2Chi^2^/dof under fit peak (A>1.1)stat.fit.chi2doublepnumNumber of points (red +blue) under fit peak (A>1.1)meta.numberintpnumfNumber of points on falling side of fit lightcurve (A>1.1)meta.numberintprobinlog(prob) of chi^2^ of mlc fit for points within 4 t^hat^ of peakstat.probabilitydoubleproboutlog(prob) of chi^2^ of mlc fit for points farther than 4 t^hat^ of peakstat.probabilitydoubleRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainmagcorCorrection to red (or blue) median magnitude: use to find original sodophot magnitude before bad observations were removed.phot.mag;arith.diffdoubleLCLight curve corresponding to the FileNamemeta.ref.urlchar