Background spectra were extracted using source-free regions on the same detector as the source. All spectra were binned to a minimum of 20 photons per bin using the HEAsoft task `grppha`.

Spectral Analysis
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The spectral analysis was carried out using the XSPEC software [@1996ASPC..101...17A]. We started by fitting the spectra with simple power law models for an initial visual inspection of the broadband spectral curvature and X-ray absorption. We then applied phenomenological models such as `plcabs` [@1997ApJ...479..184Y] or `pexrav` [@1995MNRAS.273..837M] to model the hard X-ray continua. The former describes X-ray transmission of an intrinsic power law with an exponential cutoff through an obscuring medium, taking into account the effects of Compton scattering. The latter models Compton reflection on a slab of neutral material with infinite optical depth. It was always possible to find a combination of these two models which gave an excellent fit to the data. However, as pointed out by @2009MNRAS.397.1549M, using `plcabs` and `pexrav` may produce a bias towards fits dominated by the direct continuum. These initial results, then, need to be tested against more self-consistent and physically motivated models based on Monte Carlo simulations such as `MYTorus` [@2009MNRAS.397.1549M] and `Torus` [@2011MNRAS.413.1206B]. They both model the 