J/ApJ/561/189ivo://CDS.VizieR/J/ApJ/561/189doi:10.26093/cds/vizier.15610189CDSPence W.D.Snowden S.L.Mukai K.Kuntz K.D.2017-10-18T08:25:07Z2007-10-29T07:31:10ZCDS support team

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

cds-question@unistra.frx-ray-sourcesA deep (98.2ks) Chandra Cycle 1 observation has revealed a wealth of discrete X-ray sources as well as diffuse emission in the nearby face-on spiral galaxy M101. From this rich data set we have created a catalog of the 110 sources from the S3 chip detected with a significance of greater than 3{sigma}. This detection threshold corresponds to a flux of ~10^-16^ergs/cm^2^/s and a luminosity of ~10^36^ergs/s for a distance to M101 of 7.2Mpc. The sources display a distinct correlation with the spiral arms of M101 and include a variety of X-ray binaries, supersoft sources, supernova remnants, and other objects of which only ~27 are likely to be background sources.2001ApJ...561..189Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/561/189CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/560/675 : Chandra X-ray point sources in Cen A (Kraft+, 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/561/189https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/561/189http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/561/189https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/561/189https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/561/189http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/561/189GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/561/189/table1 (S3 Chip X-ray Sources in M101)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/561/189/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/561/189/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/561/189/table1?GETtext/xml+votable180.050000true210.704791754.31169440.0055555555555555566/11434https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/561/189?format=asciiX-raydefaultJ/ApJ/561/189/table1S3 Chip X-ray Sources in M101recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[PSM2001]Source numbermeta.id;meta.mainintprimaryn_[PSM2001]Simbad column added by the CDSmeta.ref.urlcharRAJ2000Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainAreaArea of source region in units of the 0.49" CHANDRA CCD pixelspixphys.area;obs.field;arith.ratiointS1First soft X-ray energy band net counts (1)ctphot.count;em.X-rayintM1First medium X-ray energy band net counts (1)ctphot.count;em.X-rayintH1First hard X-ray energy band net counts (1)ctphot.count;em.X-rayintS2Second soft X-ray energy band net counts (1)ctphot.count;em.X-rayintM2Second medium X-ray energy band net counts (1)ctphot.count;em.X-rayintH2Second hard X-ray energy band net counts (1)ctphot.count;em.X-rayintlogFS2? Log of the S2 X-ray flux (in erg/cm^2^/s)log(mW.m**-2)phot.flux;em.X-rayfloatnullablelogFM2? Log of the M2 X-ray flux (in erg/cm^2^/s)log(mW.m**-2)phot.flux;em.X-rayfloatnullablelogFH2? Log of the H2 X-ray flux (in erg/cm^2^/s)log(mW.m**-2)phot.flux;em.X-rayfloatnullableJ/ApJ/561/189/table2Cross-IdentificationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[PSM2001]Source numbermeta.id;meta.mainint[WIP99]ROSAT source identification from Wang et al., 1999ApJ...523..121W, [WIP99] NN in Simbadmeta.idcharn_[WIP99]Note on the nature of the sourcemeta.notechar[MF97]SNR identification from Matonick & Fesen, 1997ApJS..112...49M, [MF97] M101 NN in Simbadmeta.idcharOtherOther identificationsmeta.idcharJ/ApJ/561/189/table4XSPEC Model Fits to the 29 Brightest SourcesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[PSM2001]Source numbermeta.id;meta.mainintalpha? Simple absorbed power-law spectrum model parameter (1)stat.param;meta.modelledfloatnullableBB? Absorbed blackbody model parameter (1)kTstat.fit.paramfloatnullableNHHydrogen column density1e+21cm**-2phys.columnDensityfloatChi2VReduced chi^2^ valuestat.fit.chi2floatlogFXS2X-ray flux over the energy range of the S2 (0.12-50.5keV) energy band (2)log(mW.m**-2)phot.flux;em.X-rayfloatlogFXM2X-ray flux over the energy range of the M2 (0.5-2.0keV) energy band (2)log(mW.m**-2)phot.flux;em.X-rayfloatlogFXH2X-ray flux over the energy range of the H2 (2.0-8.0keV) energy band (2)log(mW.m**-2)phot.flux;em.X-rayfloatlogLXS2X-ray luminosity in S2 energy band (0.12-50.5keV) (3)log(1e-07W)phys.luminosity;em.X-rayfloatlogLXM2X-ray luminosity in M2 energy band (0.5-2.0keV) (3)log(1e-07W)phys.luminosity;em.X-rayfloatlogLXH2X-ray luminosity in H2 energy band (2.0-8.0keV) (3)log(1e-07W)phys.luminosity;em.X-rayfloat