J/A+A/426/11ivo://CDS.VizieR/J/A+A/426/11doi:10.26093/cds/vizier.34260011CDSPietsch W.Misanovic Z.Haberl F.Hatzidimitriou D.Ehle M.,Trinchieri G.2009-06-29T14:09:48Z2009-06-29T14:03:56ZCDS support team

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

cds-question@unistra.frgalaxiesx-ray-sourcesIn an XMM-Newton raster observation of the bright Local Group spiral galaxy M 33 we study the population of X-ray sources (X-ray binaries, supernova remnants) down to a 0.2-4.5keV luminosity of 10^35^erg/s - more than a factor of 10 deeper than earlier ROSAT observations. EPIC hardness ratios and optical and radio information are used to distinguish between different source classes. The survey detects 408 sources in an area of 0.80 square degree. We correlate these newly detected sources with earlier M 33 X-ray catalogues and information from optical, infra-red and radio wavelengths. As M 33 sources we detect 21 supernova remnants (SNR) and 23 SNR candidates, 5 super-soft sources and 2 X-ray binaries (XRBs). There are 267 sources classified as hard, which may either be XRBs or Crab-like SNRs in M 33 or background AGN. The 44 confirmed and candidate SNRs more than double the number of X-ray detected SNRs in M 33. 16 of these are proposed as SNR candidates from the X-ray data for the first time. On the other hand, there are several sources not connected to M 33: five foreground stars, 30 foreground star candidates, 12 active galactic nucleus candidates, one background galaxy and one background galaxy candidate. Extrapolating from deep field observations we would expect 175 to 210 background sources in this field. This indicates that about half of the sources detected are within M 33.2004A&A...426...11Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/426/11CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/373/438 : The X-ray view of M33 after ROSAT (Haberl+ 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/426/11https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/426/11http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/426/11https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/426/11https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/426/11http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/426/11GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/426/11/table3 (X-ray source catalogue of the XMM-Newton EPIC M 33 raster observation)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/426/11/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/426/11/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/426/11/table3?GETtext/xml+votable180.050000true22.92887530.39152780.005555555555555556XMM6/2154-2155 2240-2241https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/426/11?format=asciiX-raydefaultJ/A+A/426/11/table3X-ray source catalogue of the XMM-Newton EPIC M 33 raster observationM1HR2? EPIC MOS1 hardness ratio 2 (2)phot.flux;arith.ratiofloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[PMH2004]Source Numbermeta.id;meta.mainintRAJ2000Right Ascension J2000pos.eq.ra;meta.mainDEJ2000Declination J2000pos.eq.dec;meta.mainPosErrPositional errorarcsecstat.error;posfloatLHSource detection likelihood (combined EPIC)stat.likelihood;instr.saturationdoubleCRateCombined EPIC count rate (1)ct/sphot.count;em.X-raydoublee_CRateError in CRatect/sstat.errordoubleCFluxCombined EPIC flux in erg/cm2/s (1)mW.m**-2phot.flux;em.X-raydoublee_CFluxError in CFluxmW.m**-2stat.errordoubleCHR1? Combined EPIC hardness ratio 1 (2)phot.flux;arith.ratiofloatnullablee_CHR1? Error in CHR1stat.errorfloatnullableCHR2? Combined EPIC hardness ratio 2 (2)phot.flux;arith.ratiofloatnullablee_CHR2? Error in CHR2stat.errorfloatnullableCHR3? Combined EPIC hardness ratio 3 (2)phot.flux;arith.ratiofloatnullablee_CHR3? Error in CHR3stat.errorfloatnullableCHR4? Combined EPIC hardness ratio 4 (2)phot.flux;arith.ratiofloatnullablee_CHR4? Error in CHR4stat.errorfloatnullableVALEPIC instruments contributing to source detection (3)meta.id;instrcharPNExpo? Exposure of EPIC pn instrumentksinstr;obs.exposurefloatnullablePNLH? EPIC pn source detection likelihoodstat.likelihood;instr.saturationdoublenullablePNRate? EPIC pn count rate (1)ct/sphot.count;em.X-raydoublenullablee_PNRate? Error in PNRatect/sstat.errordoublenullablePNFlux? EPIC pn flux in erg/cm^2^/s (1)mW.m**-2phot.flux;em.X-raydoublenullablee_PNFlux? Error in PNFluxmW.m**-2stat.errordoublenullablePNHR1? EPIC pn hardness ratio 1 (2)phot.flux;arith.ratiofloatnullablee_PNHR1? Error in PNHR1stat.errorfloatnullablePNHR2? EPIC pn hardness ratio 2 (2)phot.flux;arith.ratiofloatnullablee_PNHR2? Error in PNHR2stat.errorfloatnullablePNHR3? EPIC pn hardness ratio 3 (2)phot.flux;arith.ratiofloatnullablee_PNHR3? Error in PNHR3stat.errorfloatnullablePNHR4? EPIC pn hardness ratio 4 (2)phot.flux;arith.ratiofloatnullablee_PNHR4? Error in PNHR4stat.errorfloatnullableM1Expo? Exposure of EPIC MOS1 instrumentksinstr;obs.exposurefloatnullableM1LH? EPIC MOS1 source detection likelihoodstat.likelihood;instr.saturationdoublenullableM1Rate? EPIC MOS1 count rate (1)ct/sphot.count;em.X-raydoublenullablee_M1Rate? Error in M1Ratect/sstat.errordoublenullableM1Flux? EPIC MOS1 flux in erg/cm^2^/s (1)mW.m**-2phot.flux;em.X-raydoublenullablee_M1Flux? Error in M1FluxmW.m**-2stat.errordoublenullableM1HR1? EPIC MOS1 hardness ratio 1 (2)phot.flux;arith.ratiofloatnullablee_M1HR1? Error in M1HR1stat.errorfloatnullablee_M1HR2? Error in M1HR2stat.errorfloatnullableM1HR3? EPIC MOS1 hardness ratio 3 (2)phot.flux;arith.ratiofloatnullablee_M1HR3? Error in M1HR3stat.errorfloatnullableM1HR4? EPIC MOS1 hardness ratio 4 (2)phot.flux;arith.ratiofloatnullablee_M1HR4? Error in M1HR4stat.errorfloatnullableM2Expo? Exposure of EPIC MOS2 instrumentksinstr;obs.exposurefloatnullableM2LH? EPIC MOS2 source detection likelihoodstat.likelihood;instr.saturationdoublenullableM2Rate? EPIC MOS2 count rate (1)ct/sphot.count;em.X-raydoublenullablee_M2Rate? Error in M2Ratect/sstat.errordoublenullableM2Flux? EPIC MOS2 flux in erg/cm^2^/s (1)mW.m**-2phot.flux;em.X-raydoublenullablee_M2Flux? Error in M2FluxmW.m**-2stat.errordoublenullableM2HR1? EPIC MOS2 hardness ratio 1 (2)phot.flux;arith.ratiofloatnullablee_M2HR1? Error in M2HR1stat.errorfloatnullableM2HR2? EPIC MOS2 hardness ratio 2 (2)phot.flux;arith.ratiofloatnullablee_M2HR2? Error in M2HR2stat.errorfloatnullableM2HR3? EPIC MOS2 hardness ratio 3 (2)phot.flux;arith.ratiofloatnullablee_M2HR3? Error in M2HR3stat.errorfloatnullableM2HR4? EPIC MOS2 hardness ratio 4 (2)phot.flux;arith.ratiofloatnullablee_M2HR4? Error in M2HR4stat.errorfloatnullableXID? X-ray identification (4)meta.idcharUSNO-B1.0? Name of brightest USNO_B1.0 (<I/284>) source within search areameta.id.crosscharo_USNO-B1.0? Number of USNO_B1.0 correlationsmeta.numberintnullableUSNOdis? Distance of source USNO-B1.0arcsecpos.angDistancefloatnullableB2mag? B2 magnitude of source USNO-B1.0magphot.mag;em.opt.BfloatnullableR2mag? R2 magnitude of source USNO-B1.0magphot.mag;em.opt.RfloatnullableImag? I magnitude of source USNO-B1.0magphot.mag;em.opt.IfloatnullablelogfX/fo? Logarithm of fX/foptphot.flux;arith.ratiofloatnullableClass? Classification of X-ray source (5)src.classcharRemarks? Additional remarks (6)meta.notecharLink1All USNO: Finding all USNO-B1.0 sources within 5" of the X-ray sourcemeta.ref.urlchar