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J/ApJ/586/826       Chandra X-ray observations of NGC 1316   (Kim+, 2003)
Chandra X-ray observations of NGC 1316 (Fornax A).
    Kim D.-W., Fabbiano G.
   <Astrophys. J. 586, 826 (2003)>
   =2003ApJ...586..826K
ADC_Keywords: Galaxies, radio ; X-ray sources

Keywords: galaxies: abundances - galaxies: individual (NGC 1316, NGC 1317) -
          galaxies: ISM - X-rays: galaxies

Abstract:
    We report the results of the Chandra ACIS subarcsecond resolution
    X-ray observation of the archetypal merger radio galaxy NGC 1316
    (Fornax A).

Description:
    NGC 1316 was observed for 30ks on 2001 April 17 (ObsID 2022), with
    the Chandra Advanced CCD Imaging Spectrometer (ACIS). We used the
    back-illuminated CCD S3 (CCD ID 7) because of its sensitivity at low
    energies. To include NGC 1317 (6.3' away from NGC 1316) in the same S3
    chip, a small offset was applied to the SIM (Science Instrument
    Module) position. NGC 1316 was kept close to on-axis to achieve the
    best spatial resolution.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat        92       95   Source List


See also:
    B/chandra : The Chandra Archive Log (CXC, 2002)


Byte-by-byte Description of file: table1.dat

   Bytes Format Units   Label      Explanations

       1  A1    ---     Loc        Localisation (1)
   3-  6  A4    ---     ---        [CXOU]
   8- 23  A16   ---     CXOU       CXOU designation (JHHMMSS.s+DDMMSS)
      25  I1    ---     NCCD       CCD number
  27- 28  I2    ---     NDet       Detection number
  30- 31  I2    h       RAh        Right ascension (J2000)
  33- 34  I2    min     RAm        Right ascension (J2000)
  36- 39  F4.1  s       RAs        Right ascension (J2000)
      41  A1    ---     DE-        Delination sign (J2000)
  42- 43  I2    deg     DEd        Delination (J2000)
  45- 46  I2    arcmin  DEm        Delination (J2000)
  48- 51  F4.1  arcsec  DEs        Delination (J2000)
  53- 57  F5.2  arcsec  Rad        Source radius
  59- 64  F6.2  ct      NetCt      Net counts in the 0.3-8keV range
  66- 70  F5.2  ct      e_NetCt    rms uncertainty on NetCt
  73- 78  F6.3  ct/ks   CR         Counts rate
  80- 84  F5.2  10+31W  LX         ? X-ray luminosity (in 10^38^erg/s) (2)
  86- 92  A7    ---     Notes      Notes (3)

Note (1): Localisation as follows:
      A = Within the D25 Ellipse of NGC 1316
      B = Within the D25 Ellipse of NGC 1317
      C = Beyond D25 of NGC 1316 and NGC 1317
Note (2): LX (in 0.3-8.0keV) is determined with D=18.6Mpc and
          ECF=6.037 (or 9.767)x10-15ergs/s for 1ct/ks, which is
          appropriate in BI (or FI) CCDs for a source with
          photon index 1.7 and N(H)=3x1020cm-2
Note (3): Notes as follows:
      1 = Sources within 20" from the center of NGC 1316. The source count
          may be contaminated by the diffuse emission.
      2 = There is another source(s) within the source extraction radius.
      3 = Sources fall near the edge of the detector. The source count
          should be considered as a lower limit.
      4 = A potential ULX source.
      5 = Coincident with globular clusters listed in Shaya et al.
          (1996AJ....111.2212S) and Goudfooij et al. (2001MNRAS.322..643G).
      6 = At the center of NGC 1316.
      7 = Close to the center of NGC 1316. Its count may be overestimated.
      8 = At the center of NGC 1317.
      9 = A potential super soft X-ray source.


History:
    From electronic version of the journal
    01-Oct-2007: Two names corrected
(End)                         James Marcout, Patricia Bauer [CDS]    13-May-2003