J/ApJ/601/735ivo://CDS.VizieR/J/ApJ/601/735doi:10.26093/cds/vizier.16010735CDSTerashima Y.Wilson A.S.2017-07-12T14:45:00Z2005-03-04T17:07:35ZCDS support team

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

cds-question@unistra.frx-ray-sourcesWe present the results of two Chandra observations (separated by 1yr) of the population of X-ray sources in the spiral galaxy M51 (NGC 5194 and NGC 5195). One hundred and thirteen X-ray sources have been detected in an 8.4'x8.4'(20.4x20.4kpc) region, and 84 and 12 of them project within the disks of NGC 5194 and NGC 5195, respectively. Nine and 28 sources have luminosities exceeding 1x10^39^erg/s (ultraluminous X-ray sources or ULXs) and 1x10^38^erg/s in the 0.5-8keV band, respectively, assuming that they are associated with M51. The number of ULXs is much higher than found in most normal spiral and elliptical galaxies. Most of the X-ray sources and all seven of the ULXs in NGC 5194 are located in, or close to, a spiral arm, suggesting a connection with recent star formation.2004ApJ...601..735Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/601/735CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/chandra : The Chandra Archive Log (CXC, 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/601/735https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/601/735http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/601/735https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/601/735https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/601/735http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/601/735GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/601/735/sources (Sources detected)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/601/735/sources?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/601/735/sources?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/601/735/sources?GETtext/xml+votable180.050000true202.398708347.20030560.0055555555555555566/11027https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/601/735?format=asciiX-raydefaultJ/ApJ/601/735/sourcesSources detectedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.intTSimbad column added by the CDSchar[TW2004]Sequential number (1)intRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainDEJ2000Declination (J2000.0)pos.eq.dec;meta.mainCXOM51Chandra designationchar0.5-8keV0.5-8keV band counts in observations 1 & 2ctfloate_0.5-8keVrms uncertainty on 0.5-8keVctfloatl_0.5-2keVLimit flag on 0.5-2keVchar0.5-2keV0.5-2keV band counts in observations 1 & 2ctfloate_0.5-2keV? rms uncertainty on 0.5-2keVctfloatnullablel_2-8keVLimit flag on 2-8keVchar2-8keV2-8keV band counts in observations 1 & 2ctfloate_2-8keV? rms uncertainty on 2-8keVctfloatnullablel_0.5-8keV1Limit flag on 0.5-8keV1char0.5-8keV10.5-8keV band counts in observation 1ctfloate_0.5-8keV1? rms uncertainty on 0.5-8keV1ctfloatnullablel_0.5-2keV1Limit flag on 0.5-2keV1char0.5-2keV10.5-2keV band counts in observation 1ctfloate_0.5-2keV1? rms uncertainty on 0.5-2keV1ctfloatnullablel_2-8keV1Limit flag on 2-8keV1char2-8keV12-8keV band counts in observation 1ctfloate_2-8keV1? rms uncertainty on 2-8keV1ctfloatnullablel_0.5-8keV2Limit flag on 0.5-8keV2char0.5-8keV20.5-8keV band counts in observation 2ctfloate_0.5-8keV2? rms uncertainty on 0.5-8keV2ctfloatnullablel_0.5-2keV2Limit flag on 0.5-2keV2char0.5-2keV20.5-2keV band counts in observation 2ctfloate_0.5-2keV2? rms uncertainty on 0.5-2keV2ctfloatnullablel_2-8keV2Limit flag on 2-8keV2char2-8keV22-8keV band counts in observation 2ctfloate_2-8keV2? rms uncertainty on 2-8keV2ctfloatnullable