CENACXO ivo://nasa.heasarc/cenacxo NASA/GSFC HEASARC Kraft et al. 2026-10-09 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source This table contains the results from two Chandra X-ray Observatory observations of the X-ray point source population in the nearby radio galaxy Centaurus A (NGC 5128). Using a wavelet decomposition detection algorithm, 246 individual point sources are detected above a limiting luminosity of ~ 2 * 10<sup>36</sup> ergs/s, 82 of which are detected in both data sets where the fields of view overlap. Thirty-eight sources were detected in only one observation but were within the field of view of both pointings, implying considerable variability. Eight foreground stars were identified in these observations, and nine of the sources were identified with known globular clusters in Centaurus A. All previously observed ROSAT sources within our field of view were detected. The faintest source in this table has 5 counts, which corresponds to a limiting luminosity of ~2.2 x 10<sup>36</sup> erg/s at the center of the field of view. The two observations of Cen A were made with the ACIS-I array (observation IDs were 00316 and 00962) on 1999 December 5 and 2000 May 17, with 35.9 36.5 ks exposures, respectively. This table was created by the HEASARC in February 2007 based on CDS table J/ApJ/560/675 file table2.dat. This is a service provided by NASA HEASARC . 2001ApJ...560..675K https://heasarc.gsfc.nasa.gov/W3Browse/all/cenacxo.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=cenacxo& GET text/xml 180 99999 true 201.378125 -43.22508889 0.0166666666666667 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=cenacxo GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_cenacxo&Action=More+Options&Action=Parameter+Search&ConeAdd=1 CHANDRA 0.0166666666666667 X-ray public cenacxo Centaurus A Galaxy Chandra X-Ray Point Source Catalog name Catalog Source Designation meta.id;meta.main char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable lx_1_limit Limit Flag for ACIS#316 Luminosity char nullable lx_1 ACIS#316 (05-Dec-1999) 0.4-10keV Luminosity (erg/s) erg/s double nullable lx_2_limit Limit Flag for ACIS#962 Luminosity char nullable lx_2 ACIS#962 (17-May-2000) 0.4-10keV Luminosity (erg/s) erg/s double nullable source_number Sequential Identification Number for Each X-Ray Source in Catalog meta.id short nullable alt_name Alternative Catalog Source Designation meta.id char nullable lii Galactic Longitude degree pos.galactic.lon double nullable note_flags Flags Indicate Notes Concerning the Observation or Identification of the Source char nullable bii Galactic Latitude degree pos.galactic.lat double nullable "__x_ra_dec" System unit vector column double nullable "__y_ra_dec" System unit vector column double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable