J/ApJS/160/319ivo://CDS.VizieR/J/ApJS/160/319doi:10.26093/cds/vizier.21600319CDSGetman K.V.Flaccomio E.Broos P.S.Grosso N.Tsujimoto M.,Townsley L.Garmire G.P.Kastner J.Li J.Harnden F.R.JRWolk S.,Murray S.S.Lada C.J.Muench A.A.McCaughrean M.J.Meeus G.,Damiani F.Micela G.Sciortino S.Bally J.Hillenbrand L.A.Herbst W.,Preibisch T.Feigelson E.D.2017-07-12T15:43:21Z2008-02-08T14:33:42ZCDS support team

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

cds-question@unistra.fropen-star-clustersinterstellar-mediumearly-type-starspre-main-sequence-starsx-ray-sourcesWe present a description of the data reduction methods and the derived catalog of more than 1600 X-ray point sources from the exceptionally deep 2003 January Chandra X-Ray Observatory (Chandra) observation of the Orion Nebula Cluster and embedded populations around OMC-1. The observation was obtained with Chandra's Advanced CCD Imaging Spectrometer (ACIS) and has been nicknamed the Chandra Orion Ultradeep Project (COUP). With an 838ks exposure made over a continuous period of 13.2 days, the COUP observation provides the most uniform and comprehensive data set on the X-ray emission of normal stars ever obtained in the history of X-ray astronomy.2005ApJS..160..319Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/160/319CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/chandra : The Chandra Archive Log (CXC, 1999-)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)J/AJ/113/1733 : Orion Nebula Cluster population (Hillenbrand 1997)J/AJ/116/1816 : JHKLMNOPQ photometry in Orion cluster (Hillenbrand+, 1998)J/ApJ/540/236 : KH photometry of Orion Nebula Cluster (Hillenbrand+, 2000)J/A+A/396/513 : Stellar Rotation in the Orion Nebula Cluster (Herbst+, 2002)J/ApJ/573/366 : Infrared photometry of Trapezium cluster (Muench+, 2002)J/AJ/128/1254 : VLT 3.8{mu}m Trapezium catalog (Lada+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/160/319https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/160/319http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/160/319https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/160/319https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/160/319http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/160/319GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/160/319/table11 (Upper limits of undetected stars from Hillenbrand (1997, Cat. <J/AJ/113/1733>))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/160/319/table11?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/160/319/table11?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/160/319/table11?GETtext/xml+votable180.050000true83.62319194-5.395426110.005555555555555556Cone search capability for table J/ApJS/160/319/coup (Combined table from original tables)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/160/319/coup?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/160/319/coup?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/160/319/coup?GETtext/xml+votable180.050000true83.62273-5.393730.005555555555555556Cone search capability for table J/ApJS/160/319/table12 (Upper limits of undetected sources from the Two Micron All Sky Survey (Cat. <II/246>))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/160/319/table12?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/160/319/table12?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/160/319/table12?GETtext/xml+votable180.050000true83.6230833-5.39547220.0055555555555555566/21438 21439 22804 228055.0692151230857684e-20 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/160/319?format=asciiX-raydefaultJ/ApJS/160/319/notesNotes on individual sourcesNoteNotemeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameIAU designation (COUP JHHMMSS.s+DDMMSS in Simbad)meta.id;meta.maincharJ/ApJS/160/319/table11Upper limits of undetected stars from Hillenbrand (1997, Cat. <J/AJ/113/1733>)Rad? Stellar radius (1)solRadphys.size.radiusfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[H97b]Optical star designation (1)meta.id;meta.maincharRAJ2000Right ascension (J2000) (1)degpos.eq.ra;meta.mainDEJ2000Declination (J2000) (1)degpos.eq.dec;meta.mainLimCtUpper limit to the X-ray counts at this locationctphot.count;em.X-rayintExpTimeExposure time at this locationkstime.duration;obs.exposurefloatConfFlConfusion flag with nearby X-ray sourcemeta.codecharVmag? The V band magnitude (1)magphot.mag;em.opt.VfloatnullableImag? The I band magnitude (1)magphot.mag;em.opt.IfloatnullableSpTypeSpectral type (1)src.spTypecharAV? The visual absorption (1)magphys.absorption;em.opt.Vfloatnullablelog(Teff)? Log of the stellar effective temperature (1)log(K)phys.temperature.effectivefloatnullablelog(LBol)? Log of the stellar bolometric luminosity (1)log(solLum)phys.luminosityfloatnullableMass? Stellar mass (2)solMassphys.massfloatnullablelog(Age)? Log of the stellar age (2)log(yr)time.agefloatnullableDel(I-K)? The {Delta}(I-K) near-infrared excess (3)magphot.color.excessfloatnullableEWCa? Equivalent width Ca II line in Angstroms (3)0.1nmspect.line.eqWidthfloatnullableJ/ApJS/160/319/coupCombined table from original tablesCOUPCOUP source numbermeta.idintl_LsUpper limit flag for Lsmeta.code.errorcharLSrcThe L band source namemeta.id.crosscharHR1? Hardness ratio 1 (0.5-2.0/2.0-8.0keV) (1)phot.flux;arith.ratiofloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_COUPindicates a note about this source in the file notes.datmeta.ref.urlcharNameIAU designation (COUP JHHMMSS.s+DDMMSS in Simbad)meta.id;meta.maincharprimarySrcCtsSource counts in extracted areactphot.count;em.X-rayintBkgCtsBackground counts in extracted areactinstr.backgroundintNetCtsNet counts in extracted areactphot.count;em.X-rayintExtAreaExtraction areapixphys.area;instrintPSFFracPoint spread fraction in extracted area at fiducial energy 1.5keVinstr.det.psf;arith.ratiofloatExpTimeExposure timekstime.duration;obs.exposurefloatCtFlConvConversion factor between counts and flux in units of 10^9^ct.cm^2^/photon1e+09cm**2arith.factorfloatXfluxLog of the 0.5-8.0keV Incident photon flux in units of photons/cm^2^/slog(cm**-2.s**-1)phot.flux;em.X-rayfloat<E>Median energy corrected for backgroundkeVphys.energy;stat.medianfloate_HR1? Lower uncertainty on HR1stat.errorfloatnullableE_HR1? Upper uncertainty on HR1stat.error;stat.maxfloatnullableHR2? Hardness ratio 2 (0.5-1.7/1.7-2.8keV) (1)phot.flux;arith.ratiofloatnullablee_HR2? Lower uncertainty on HR2stat.errorfloatnullableE_HR2? Upper uncertainty on HR2stat.error;stat.maxfloatnullableHR3? Hardness ratio 3 (1.7-2.8/2.8-8.0keV) (1)phot.flux;arith.ratiofloatnullablee_HR3? Lower uncertainty on HR3stat.errorfloatnullableE_HR3? Upper uncertainty on HR3stat.error;stat.maxfloatnullablelogNH? Hydrogen column densitylog(cm**-2)phys.columnDensityfloatnullablee_logNH? Error in logNHlog(cm**-2)stat.errorfloatnullablekT1? Energy of first plasma componentkeVphys.temperaturefloatnullablee_kT1? Error in kT1keVstat.errorfloatnullablekT2? Energy of second plasma component, if neededkeVphys.temperaturefloatnullablee_kT2? Error in kT2keVstat.errorfloatnullableEM1? Emission measure of first plasma componentlog(cm**-3)phys.emissMeasurefloatnullablee_EM1? Error in EM1log(cm**-3)stat.errorfloatnullableEM2? Emission measure of second plasma componentlog(cm**-3)phys.emissMeasurefloatnullablee_EM2? Error in EM2log(cm**-3)stat.errorfloatnullableChi2? Chi-squared per degree of freedom for spectral fitstat.fit.chi2floatnullabled_Chi2? Degrees of freedom for Chi2stat.fit.dofintnullablef_Chi2Spectral fit flag (1)meta.codecharNphSpectral model flag (2)stat.paramcharNcSpectral model flag (3)stat.paramcharNplSpectral model flag (4)stat.paramcharsFlagsSpectral features and problems flag (5)meta.codecharVarVariability flag (1)meta.code;src.varcharlogP(KS)log probability of variability (2)src.varfloatBBNumBayesian blocks, number of segmentsstat.fit.paramintBBMinBayesian blocks, minimum count ratect/ksstat.fit.paramfloate_BBMinBayesian blocks, error in minimum count ratect/ksstat.errorfloatBBMaxBayesian blocks, maximum count ratect/ksstat.fit.paramdoublee_BBMaxBayesian blocks, error in maximum count ratect/ksstat.errorfloatLs? Log of the observed soft band (0.5-2.0keV) luminosity (1)log(1e-07W)phys.luminosity;em.X-rayfloatnullablel_LhUpper limit flag for Lhmeta.code.errorcharLh? Log of the observed hard band (2.0-8.0keV) luminositylog(1e-07W)phys.luminosity;em.X-rayfloatnullableLhc? Log of the estimated luminosity in hard band corrected for absorptionlog(1e-07W)phys.luminosity;em.X-rayfloatnullableLtLog of the observed total band (0.5-8.0keV) luminositylog(1e-07W)phys.luminosity;em.X-rayfloatLtc? Log of the estimated luminosity in total band corrected for absorptionlog(1e-07W)phys.luminosity;em.X-rayfloatnullableRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainPosErrPositional error, 1{sigma} arcsecarcsecstat.error;posfloatOffaxisOff-axis anglearcmininstr.offsetfloatFlagsFlag indicating source detection problem (1)meta.codecharFl1Flag indicating source detection map for Chicago wavdetect (2)meta.codeintFl2Flag indicating source detection map for Palermo wavelet detection (3)meta.codeintM1Flag indicating source detection method (4)meta.codeintM2Flag indicating source detection method (5)meta.codeintM3Flag indicating source detection method (6)meta.codeintSigAESource significance (in {sigma}) from acis_extractstat.fit.goodnessfloatSigPWD? Source significance (in {sigma}) from Palermo wavelet detectionstat.fit.goodnessfloatnullableACIS? Previous Chandra ACIS X-ray sourcemeta.id;obsintnullableHRC? Previous Chandra HRC X-ray sourcemeta.id;obsintnullableOptIDOptical star designation (1)meta.id.crosscharOptOff? COUP-optical positional offset (2)arcsecpos.angDistancefloatnullableVmag? The V band magnitude (2)magphot.mag;em.opt.VfloatnullableImag? The I band magnitude (2)magphot.mag;em.opt.IfloatnullableSpTypeSpectral type (2)src.spTypecharAV? The visual absorption (2)magphys.absorption;em.opt.Vfloatnullablelog(Teff)? Log of the stellar effective temperature (2)log(K)phys.temperature.effectivefloatnullablelog(LBol)? Log of the stellar bolometric luminosity (2)log(solLum)phys.luminosityfloatnullableRad? Stellar radius (2)solRadphys.size.radiusfloatnullableMass? Stellar mass (3)solMassphys.massfloatnullablelog(Age)? Log of stellar age (3)log(yr)time.agefloatnullableDel(I-K)? The {Delta}(I-K) near-infrared excess (4)magphot.color.excessfloatnullableEWCa? Equivalent width Ca II line in {AA} (4)0.1nmspect.line.eqWidthfloatnullable<Vmag>? The average V band magnitude (5)magphot.mag;em.opt.Vfloatnullablee_<Vmag>? Error in Vmag (5)magstat.error;phot.mag;em.opt.VfloatnullableVRange? Range in V band magnitudes (5)magphot.mag;em.opt.VfloatnullablePer? Photometric rotational period (5)dtime.periodfloatnullableJHKSrcJHK source name (2)meta.id.crosscharJHKOff? The COUP-JHK source positional offsetarcsecpos.angDistancefloatnullableJmag? The J band magnitudemagphot.mag;em.IR.JfloatnullableHmag? The H band magnitudemagphot.mag;em.IR.HfloatnullableKsmag? The K_s_ band magnitudemagphot.mag;em.IR.Kfloatnullabler_KsmagSource of photometry flag (3)meta.ref;pos.framecharq_2M2MASS photometric quality flag (G1)meta.code.qualcharf_2M2MASS contamination and confusion flag (G2)meta.codecharr_LmagReference flag for Lmag (6)meta.ref;pos.framecharLmag? The L band magnitudemagphot.mag;em.IR.3-4umfloatnullableJ/ApJS/160/319/table12Upper limits of undetected sources from the Two Micron All Sky Survey (Cat. <II/246>)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2MASS2MASS source namemeta.id;meta.maincharLimCtUpper limit to the X-ray counts at this locationctphot.count;em.X-rayintExpTimeExposure time at this locationkstime.duration;obs.exposurefloatConfFlConfusion flag with nearby X-ray sourcemeta.codecharJmagThe 2MASS J band magnitudemagphot.mag;em.IR.JfloatHmagThe 2MASS H band magnitudemagphot.mag;em.IR.HfloatKsmagThe 2MASS K_s_ band magnitudemagphot.mag;em.IR.Kfloatq_2M2MASS photometric quality flag (G1)meta.code.qualcharf_2M2MASS contamination and confusion flag (G2)meta.codechar_RARight ascension added by the CDSdegpos.eq.ra;meta.main_DEDeclination added by the CDSdegpos.eq.dec;meta.main