J/AJ/132/1372ivo://CDS.VizieR/J/AJ/132/1372doi:10.26093/cds/vizier.51321372CDSTennant A.F.2008-06-18T22:33:50Z2008-06-18T22:31:33ZCDS support team

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

cds-question@unistra.frgalaxiesx-ray-sourcesChandra observed the nearby dwarf galaxy NGC 6822. There are 70 sources in the Chandra field, two of which are fairly extended and likely background clusters of galaxies. A third source was resolved by Chandra that has the same size and position as a known supernova remnant. The suspected variability detected from this source in previous missions is shown to be in error. The majority of the remaining 67 sources are consistent with background sources. Of the 61 sources detected above a completeness limit of 10 events, we estimate that 9+/-4+/-8 are associated with the galaxy, including both systematic and statistical errors. We compare the X-ray positions of all sources with various catalogs and Hubble Space Telescope data and offer tentative identifications for several. Based on the mass and star formation rate of NGC 6822, we expect only about 10 sources, mostly high-mass systems.2006AJ....132.1372Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/132/1372CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/121/2020 : CTIO and WFPC2 photometry in NGC 6822 (Bianchi+, 2001)J/AJ/132/378 : HST and UV photometry of NGC 6822 (Bianchi+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/132/1372https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/132/1372http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/132/1372https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/132/1372https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/132/1372http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/132/1372GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/132/1372/table1 (Chandra Sources in NGC 6822)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/132/1372/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/132/1372/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/132/1372/table1?GETtext/xml+votable180.050000true296.06829583-14.760391670.0055555555555555566/29716 29718https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/132/1372?format=asciiX-raydefaultJ/AJ/132/1372/table1Chandra Sources in NGC 6822recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[T2006]Source name (SNN)meta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainePosRadius hat encloses the Chandra position with 90% confidencearcsecstat.errorfloatPSFsigSize of the PSF at this locationarcsecinstr.det.psffloatCountsNumber of counts detected corrected for the PSFctphot.count;em.X-rayint