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Table 2

Chandra spectral fits and 6 μm   luminosities of the low LX/L6 μm sources in the CDFS.

ID z NH Γ C-stat f2 − 10 LX Fraction NH C-stat Γ C-stat Counts
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14)

9 1.615 438 1.5 1.8 11.77 0.92 439 456 130
95 5.73† 505 1.0 2.7 12.96 1.0 505 508 137
197 3.64† 474 0.46 0.59 11.74 0.97 437 472 37
282 2.223 - - - 0.14 0.38 11.95 0.87  <1.2 477 472 24
293 3.10 - - - 0.15 0.65 11.75 0.96 452 455.5 22
309 2.579 - - - 0.35 1.5 11.61 0.81 497 498 52
382 0.664 487 0.63 0.1 10.75 0.1 488 497 179
398 1.222 483 1.50 0.54 11.77 0.88 470 465 94
407 1.367  <3.9 464 0.13 0.12 10.83 0.35  <3.5 464 464 48

Notes. The columns are: (1) ID in the catalogue of Luo et al. (2008); (2) redshift from Luo et al. (2010); two and three decimal digits denote photometric and spectroscopic redshift respectively; † source not detected in the BVR bands Cardamone et al. (2010) or K band Taylor et al. (2009) and thus the photometric redshift may be uncertain. Rafferty et al. (2011) gives a photometric redshift of z = 2.30 and z = 3.02 for the sources CDFS-197 an CDFS-293 respectively; (3) column density in units 1022 cm-2, (4) Photon index; (5) C-statistic value for 509 degrees of freedom for both Γ and NH free; (6) X-ray flux in the 2–10 keV band in units of 10-15 erg cm-2 s-1, as estimated from the X-ray spectroscopy; (7) X-ray luminosity in the 2–10 keV band (uncorrected for X-ray absorption) in units of 1043 erg s-1; (8) logarithm of total 6 μm   luminosity (star-formation and torus) in units of solar luminosity; (9) fraction of torus contribution relative to total luminosity at 6 μm, according to SED decomposition; (10) column density in units 1022 cm-2 for photon index fixed to Γ = 1.8; (11) C-statistic value for 510 degrees of freedom; (12) photon index for column density NH = 0 cm-2; (13) C-statistic value for 510 degrees of freedom; (14) net counts (background subtracted) in the 0.5–8 keV band. All errors quoted refer to the 90% confidence level.

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