Suzaku X-ray spectral study of the Compton-thick Seyfert galaxy NGC 5135
  We present the 0.5 - 50 keV Suzaku broad-band X-ray spectral study of the
Compton-thick AGN in NGC 5135. The Suzaku observation provides the first
detection of NGC 5135 above 10 keV that allowed us, for the first time, to
estimate the absorbing column density, the intrinsic X-ray luminosity, the
strength of the reflection component and the viewing angle of the torus for
this AGN. The 0.5 - 10 keV spectrum of NGC 5135 is characterized by the
standard components for a Compton-thick source: a scattered continuum, a
prominent Fe K{\alpha} emission line (EW ~ 2.1 keV) and a soft excess. At
higher energies (E > 10 keV) the intrinsic AGN continuum shows up, implying an
absorbing column density of the order of ~ 2.5 \times 10^24 cm^-2 and the
intrinsic 2.0 - 10 keV X-ray luminosity of ~ 1.8 \times 10^43 erg s^-1.
Assuming a toroidal geometry of the reprocessing material we show that an
edge-on view of the obscuring torus is preferred in this source.
