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Fig. 6

image

Broad-band X-ray spectra of IRAS F00183–7111 and three obscured AGN with different degrees of absorption for a comparison: NGC 1068, a (cold) reflection-dominated spectrum without a transmitted component of the obscured nuclear source (NH1025 cm-2); NGC 4945, a reflection-dominated spectrum below 10 keV with a transmitted component of the central source emerging above 10 keV (NH~3.5 × 1024 cm-2); IRAS F05189–2524, moderately absorbed nuclear source (NH~ (6–9) × 1022 cm-2). The 0.6–8 keV data for IRAS F00183–7111 are obtained by combining the XMM-Newton, Chandra and Suzaku data. For the other three, XMM-Newton data are used for the 0.6–10 keV band. Their spectra at higher energies are all obtained from NuSTAR. All the comparison spectra show Fe K emission peaking at 6.4 keV as indicated by the dotted line whereas that in IRAS F00183–7111 peaks at 6.7 keV (see Sect. 3.2.1). NGC 1068 and NGC 4945 exhibit excess features in the NuSTAR band due to a cold reflection hump and an absorbed component, respectively.

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