J/ApJS/218/9ivo://CDS.VizieR/J/ApJS/218/9doi:10.26093/cds/vizier.22180009CDSWilliams B.F.Wold B.Haberl F.Garofali K.Blair W.P.Gaetz T.J.,Kuntz K.D.Long K.S.Pannuti T.G.Pietsch W.Plucinsky P.P.,Winkler P.F.2017-11-29T11:48:11Z2015-07-24T07:19:36ZCDS support team

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

cds-question@unistra.frx-ray-sourcesgalaxiessurveysastronomical-object-identificationWe have obtained a deep 8 field XMM-Newton mosaic of M33 covering the galaxy out to the D_25_ isophote and beyond to a limiting 0.2-4.5keV unabsorbed flux of 5x10^-16^erg/cm2/s (L>4x10^34^erg/s at the distance of M33). These data allow complete coverage of the galaxy with high sensitivity to soft sources such as diffuse hot gas and supernova remnants (SNRs). Here, we describe the methods we used to identify and characterize 1296 point sources in the 8 fields. We compare our resulting source catalog to the literature, note variable sources, construct hardness ratios, classify soft sources, analyze the source density profile, and measure the X-ray luminosity function (XLF). As a result of the large effective area of XMM-Newton below 1keV, the survey contains many new soft X-ray sources. The radial source density profile and XLF for the sources suggest that only ~15% of the 391 bright sources with L>3.6x10^35^erg/s are likely to be associated with M33, and more than a third of these are known SNRs. The log(N)-log(S) distribution, when corrected for background contamination, is a relatively flat power law with a differential index of 1.5, which suggests that many of the other M33 sources may be high-mass X-ray binaries. Finally, we note the discovery of an interesting new transient X-ray source, which we are unable to classify.2015ApJS..218....9Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/218/9CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/xmm : XMM-Newton Observation Log (XMM-Newton Science Operation Center, 2012)IX/44 : XMM-Newton Serendipitous Source Catalogue 3XMM-DR4 (XMM-SSC, 2013)J/MNRAS/419/2095 : HMXBs in nearby galaxies (Mineo+, 2012)J/ApJS/193/31 : M33 Chandra ACIS survey: final catalog (Tullmann+, 2011)J/ApJS/192/10 : Chandra ACIS survey in 383 nearby galaxies. I. (Liu, 2011)J/ApJS/187/495 : SNRs in M33 from optical and X-ray (Long+, 2010)J/A+A/497/635 : XMM-Newton survey in COSMOS field (Cappelluti+, 2009)J/A+A/493/339 : XMM-Newton serendipitous Survey. V. (Watson+, 2009)J/ApJ/703/370 : Radio SNRs in nearby galaxies (Chomiuk+, 2009)J/ApJ/687/471 : Observational comparison of ULXs & XRBs (Berghea+, 2008)J/ApJS/174/366 : Chandra ACIS survey of M33 (ChaSeM33) (Plucinsky+, 2008)J/MNRAS/371/1405 : Variables in M33 (Hartman+, 2006)J/A+A/451/835 : X-ray sources in M31/M33 (Hatzidimitriou+, 2006)J/AJ/131/2478 : M31 and M33 UBVRI photometry (Massey+, 2006)J/A+A/448/1247 : XMM-Newton survey of M33 (Misanovic+, 2006)J/ApJS/161/271 : The X-ray binary population in M33. I (Grimm+, 2005)J/A+A/426/11 : XMM-Newton survey of M33 (Pietsch+, 2004)J/A+A/373/438 : 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/ApJS/218/9https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/218/9http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/218/9https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/218/9https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/218/9http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/218/9GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/218/9/table3 (M33 X-ray source catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/218/9/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/218/9/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/218/9/table3?GETtext/xml+votable180.050000true22.879833330.52221110.0055555555555555566/2154 2155 2240 2241https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/218/9?format=asciiX-raydefaultJ/ApJS/218/9/table3M33 X-ray source cataloge_C-e3Error in C-e3ctstat.errordoubleC-MOS1e2? MOS1 1.0-2.0 keV source countsctphot.count;em.X-raydoublenullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/1296] Running sequence numbermeta.id;meta.mainintVarSimbad column added by the CDSmeta.codeintnullableRAJ2000[1] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[30/31] Degree of Declination (J2000)pos.eq.dec;meta.mainePos[1.5/11]? Uncertainty in positionarcsecstat.error;posfloatnullabledetTotal 0.2-4.5 keV detection likelihoodstat.likelihooddoubleCtsTotal 0.2-4.5 keV source countsctphot.count;em.X-raydoublee_Cts[8/47000] Error in Ctsctstat.errordoubleRate[0.0004/9.2] Total 0.2-4.5keV source ratect/sphot.count;em.X-raydoublee_Rate[0.0001/0.9] Error in Ratect/sstat.errordoubleFluxTotal 0.2-4.5 keV source fluxmW.m**-2phot.flux;em.X-raydoublee_FluxError in FluxmW.m**-2stat.error;phot.fluxdoubleFlagFlag of detection deficiencies, 0=ok (1)meta.code.errorcharChASeM33CXC identification ("HHMMSS.ss+DDMMSS.s"; J2000 - or "0") [T11] (2)meta.id.crosschar[MPH2006]?=0 XMM identification [M06] (3)meta.id.crossintnullable2nd-matchSecondary identification (4)meta.id.crosscharOTypeObject type: SNR, star, foreground (5)stat.snr;src.classcharL-e0The 0.2-0.5 keV detection likelihoodstat.likelihooddoubleC-e0The 0.2-0.5 keV source countsctphot.count;em.X-raydoublee_C-e0Error in C-e0ctstat.errordoubleR-e0The 0.2-0.5keV ratect/sphot.count;em.X-raydoublee_R-e0Error in Ratect/sstat.errordoubleF-e0The 0.2-0.5 keV fluxmW.m**-2phot.flux;em.X-raydoublee_F-e0Error in F-e0mW.m**-2stat.errordoubleL-e1The 0.5-1.0 keV detection likelihoodstat.likelihooddoubleC-e1The 0.5-1.0 keV source countsctphot.count;em.X-raydoublee_C-e1Error in C-e1ctstat.errordoubleR-e1The 0.5-1.0 keV ratect/sphot.count;em.X-raydoublee_R-e1Error in R-e1ct/sstat.errordoubleF-e1The 0.5-1.0 keV fluxmW.m**-2phot.flux;em.X-raydoublee_F-e1Error in F-e1mW.m**-2stat.errordoubleL-e2The 1.0-2.0 keV detection likelihoodstat.likelihooddoubleC-e2The 1.0-2.0 keV source countsctphot.count;em.X-raydoublee_C-e2Error in C-e2ctstat.errordoubleR-e2The 1.0-2.0 keV ratect/sphot.count;em.X-raydoublee_R-e2Error in R-e2ct/sstat.errordoubleF-e2The 1.0-2.0 keV fluxmW.m**-2phot.flux;em.X-raydoublee_F-e2Error in F-e2mW.m**-2stat.errordoubleL-e3The 2.0-4.5 keV detection likelihoodstat.likelihooddoubleC-e3The 2.0-4.5 keV source countsctphot.count;em.X-raydoubleR-e3The 2.0-4.5 keV ratect/sphot.count;em.X-raydoublee_R-e3Error in R-e3ct/sstat.errordoubleF-e3The 2.0-4.5 keV fluxmW.m**-2phot.flux;em.X-raydoublee_F-e3Error in F-e3mW.m**-2stat.errordoublet-EPNe0? EPN 0.2-0.5 keV exposure timestime.duration;obs.exposure;em.X-ray.softfloatnullableL-EPNe0? EPN 0.2-0.5keV detection likelihoodstat.likelihooddoublenullableC-EPNe0? EPN 0.2-0.5 keV source countsctphot.count;em.X-raydoublenullablee_C-EPNe0? Error in C-EPNe0ctstat.errordoublenullableR-EPNe0? EPN 0.2-0.5 keV ratect/sphot.count;em.X-raydoublenullablee_R-EPNe0? Error in R-EPNe0ct/sstat.errordoublenullableF-EPNe0? EPN 0.2-0.5 keV fluxmW.m**-2phot.flux;em.X-raydoublenullablee_F-EPNe0? Error in F-EPNe0mW.m**-2stat.errordoublenullablet-EPNe1? EPN 0.5-1.0 keV exposure timestime.duration;obs.exposure;em.X-ray.softfloatnullableL-EPNe1? EPN 0.5-1.0keV detection likelihoodstat.likelihooddoublenullableC-EPNe1? EPN 0.5-1.0 keV source countsctphot.count;em.X-raydoublenullablee_C-EPNe1? Error in C-EPNe1ctstat.errordoublenullableR-EPNe1? EPN 0.5-1.0 keV ratect/sphot.count;em.X-raydoublenullablee_R-EPNe1? Error in R-EPNe1ct/sstat.errordoublenullableF-EPNe1? EPN 0.5-1.0 keV fluxmW.m**-2phot.flux;em.X-raydoublenullablee_F-EPNe1? Error in F-EPNe1mW.m**-2stat.errordoublenullablet-EPNe2? EPN 1.0-2.0 keV exposure timestime.duration;obs.exposure;em.X-ray.softfloatnullableL-EPNe2? EPN 1.0-2.0keV detection likelihoodstat.likelihooddoublenullableC-EPNe2? EPN 1.0-2.0keV source countsctphot.count;em.X-raydoublenullablee_C-EPNe2? Error in C-EPNe2ctstat.errordoublenullableR-EPNe2? EPN 1.0-2.0 keV Ratect/sphot.count;em.X-raydoublenullablee_R-EPNe2? Error in R-EPNe2ct/sstat.errordoublenullableF-EPNe2? EPN 1.0-2.0 keV FluxmW.m**-2phot.flux;em.X-raydoublenullablee_F-EPNe2? Error in F-EPNe2mW.m**-2stat.errordoublenullablet-EPNe3? EPN 2.0-4.5 keV exposure timestime.duration;obs.exposure;em.X-ray.mediumfloatnullableL-EPNe3? EPN 2.0-4.5 keV detection likelihoodstat.likelihooddoublenullableC-EPNe3? EPN 2.0-4.5 keV source countsctphot.count;em.X-raydoublenullablee_C-EPNe3? Error in C-EPNe3ctstat.errordoublenullableR-EPNe3? EPN 2.0-4.5 keV ratect/sphot.count;em.X-raydoublenullablee_R-EPNe3? Error in C-EPNe3ct/sstat.errordoublenullableF-EPNe3? EPN 2.0-4.5 keV fluxmW.m**-2phot.flux;em.X-raydoublenullablee_F-EPNe3? Error in C-EPNe3mW.m**-2stat.errordoublenullablet-MOS1e0? MOS1 0.2-0.5 keV exposure timestime.duration;obs.exposure;em.X-ray.softfloatnullableL-MOS1e0? MOS1 0.2-0.5 keV detection likelihoodstat.likelihooddoublenullableC-MOS1e0? MOS1 0.2-0.5 keV source countsctphot.count;em.X-raydoublenullablee_C-MOS1e0? Error in C-MOS1e0ctstat.errordoublenullableR-MOS1e0? MOS1 0.2-0.5 keV ratect/sphot.count;em.X-raydoublenullablee_R-MOS1e0? Error in R-MOS1e0ct/sstat.errordoublenullableF-MOS1e0? MOS1 0.2-0.5 keV fluxmW.m**-2phot.flux;em.X-raydoublenullablee_F-MOS1e0? Error in F-MOS1e0mW.m**-2stat.errordoublenullablet-MOS1e1? MOS1 0.5-1.0 keV exposure timestime.duration;obs.exposure;em.X-ray.softfloatnullableL-MOS1e1? MOS1 0.5-1.0 keV detection likelihoodstat.likelihooddoublenullableC-MOS1e1? MOS1 0.5-1.0 keV source countsctphot.count;em.X-raydoublenullablee_C-MOS1e1? Error in C-MOS1e1ctstat.errordoublenullableR-MOS1e1? MOS1 0.5-1.0 keV ratect/sphot.count;em.X-raydoublenullablee_R-MOS1e1? Error in R-MOS1e1ct/sstat.errordoublenullableF-MOS1e1? MOS1 0.5-1.0 keV fluxmW.m**-2phot.flux;em.X-raydoublenullablee_F-MOS1e1? Error in F-MOS1e1mW.m**-2stat.errordoublenullablet-MOS1e2? MOS1 1.0-2.0 keV exposure timestime.duration;obs.exposure;em.X-ray.softfloatnullableL-MOS1e2? MOS1 1.0-2.0 keV detection likelihoodstat.likelihooddoublenullablee_C-MOS1e2? Error in C-MOS1e2ctstat.errordoublenullableR-MOS1e2? MOS1 1.0-2.0 keV ratect/sphot.count;em.X-raydoublenullablee_R-MOS1e2? Error in R-MOS1e2ct/sstat.errordoublenullableF-MOS1e2? MOS1 1.0-2.0 keV fluxmW.m**-2phot.flux;em.X-raydoublenullablee_F-MOS1e2? Error in F-MOS1e2mW.m**-2stat.errordoublenullablet-MOS1e3? MOS1 2.0-4.5 keV exposure timestime.duration;obs.exposure;em.X-ray.mediumfloatnullableL-MOS1e3? MOS1 2.0-4.5 keV detection likelihoodstat.likelihooddoublenullableC-MOS1e3? MOS1 2.0-4.5 keV source countsctphot.count;em.X-raydoublenullablee_C-MOS1e3? Error in C-MOS1e3ctstat.errordoublenullableR-MOS1e3? MOS1 2.0-4.5 keV ratect/sphot.count;em.X-raydoublenullablee_R-MOS1e3? Error in R-MOS1e3ct/sstat.errordoublenullableF-MOS1e3? MOS1 2.0-4.5 keV fluxmW.m**-2phot.flux;em.X-raydoublenullablee_F-MOS1e3? Error in F-MOS1e3mW.m**-2stat.errordoublenullablet-MOS2e0? MOS2 0.2-0.5 keV exposure timestime.duration;obs.exposure;em.X-ray.softfloatnullableL-MOS2e0? MOS2 0.2-0.5 keV detection likelihoodstat.likelihooddoublenullableC-MOS2e0? MOS2 0.2-0.5 keV source countsctphot.count;em.X-raydoublenullablee_C-MOS2e0? Error in C-MOS2e0ctstat.errordoublenullableR-MOS2e0? MOS2 0.2-0.5 keV ratect/sphot.count;em.X-raydoublenullablee_R-MOS2e0? Error in R-MOS2e0ct/sstat.errordoublenullableF-MOS2e0? MOS2 0.2-0.5 keV fluxmW.m**-2phot.flux;em.X-raydoublenullablee_F-MOS2e0? Error in F-MOS2e0mW.m**-2stat.errordoublenullablet-MOS2e1? MOS2 0.5-1.0 keV exposure timestime.duration;obs.exposure;em.X-ray.softfloatnullableL-MOS2e1? MOS2 0.5-1.0 keV detection likelihoodstat.likelihooddoublenullableC-MOS2e1? MOS2 0.5-1.0 keV source countsctphot.count;em.X-raydoublenullablee_C-MOS2e1? Error in C-MOS2e1ctstat.errordoublenullableR-MOS2e1? MOS2 0.5-1.0 keV ratect/sphot.count;em.X-raydoublenullablee_R-MOS2e1? Error in R-MOS2e1ct/sstat.errordoublenullableF-MOS2e1? MOS2 0.5-1.0 keV fluxmW.m**-2phot.flux;em.X-raydoublenullablee_F-MOS2e1? Error in F-MOS2e1mW.m**-2stat.errordoublenullablet-MOS2e2? MOS2 1.0-2.0 keV exposure timestime.duration;obs.exposure;em.X-ray.softfloatnullableL-MOS2e2? MOS2 1.0-2.0 keV detection likelihoodstat.likelihooddoublenullableC-MOS2e2? MOS2 1.0-2.0 keV source countsctphot.count;em.X-raydoublenullablee_C-MOS2e2? Error in C-MOS2e2ctstat.errordoublenullableR-MOS2e2? MOS2 1.0-2.0 keV ratect/sphot.count;em.X-raydoublenullablee_R-MOS2e2? Error in C-MOS2e2ct/sstat.errordoublenullableF-MOS2e2? MOS2 1.0-2.0 keV fluxmW.m**-2phot.flux;em.X-raydoublenullablee_F-MOS2e2? Error in C-MOS2e2mW.m**-2stat.errordoublenullablet-MOS2e3? MOS2 2.0-4.5 keV exposure timestime.duration;obs.exposure;em.X-ray.mediumfloatnullableL-MOS2e3? MOS2 2.0-4.5 keV detection likelihoodstat.likelihooddoublenullableC-MOS2e3? MOS2 2.0-4.5 keV source countsctphot.count;em.X-raydoublenullablee_C-MOS2e3? Error in C-MOS2e3ctstat.errordoublenullableR-MOS2e3? MOS2 2.0-4.5 keV ratect/sphot.count;em.X-raydoublenullablee_R-MOS2e3? Error in C-MOS2e3ct/sstat.errordoublenullableF-MOS2e3? MOS2 2.0-4.5 keV fluxmW.m**-2phot.flux;em.X-raydoublenullablee_F-MOS2e3? Error in C-MOS2e3mW.m**-2stat.errordoublenullableHR1[-1/1] Hardness ratio 1 from fluxes (6)phot.flux;arith.ratiofloatHR2[-1/1] Hardness ratio 2 from fluxes (7)phot.flux;arith.ratiofloatHR1C[-1/1] Hardness ratio 1 from counts (8)phot.flux;arith.ratiofloatHR2C[-1/1] Hardness ratio 2 from counts (9)phot.flux;arith.ratiofloatXCatDisplay the sources within 5" from T11 (Tullmann+, 2011, J/ApJS/193/31) and M06 (Misanovic+, 2006, J/A+A/448/1247)meta.ref.urlintnullableJ/ApJS/218/9/table5Variability of matched T11 (Tullmann et al. 2011, J/ApJS/193/31) sourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[177/1188] Source numbermeta.id;meta.mainintXMMXMM 0.5-2.0keV flux (ergs/s/cm^2^)mW.m**-2phot.flux;em.X-raydoubleT11T11 0.5-2.0keV flux (ergs/s/cm^2^)mW.m**-2phot.flux;em.X-raydoubleRT11Revised T11 0.5-2.0keV flux (ergs/s/cm^2^)mW.m**-2phot.flux;em.X-raydoubleSigma[0/79.5] T11 detection {sigma} value (1)stat.fit.goodnessfloatRSigma[0/9.1] T11 revised detection {sigma} value (1)stat.fit.goodnessfloat