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Fig. D.1.
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Extinction across the 4-8 keV diffuse emission region. a) X-ray absorbing column density, NH, map in units of 1022 cm−2. b) The R-band image of the central part of M82, taken by the Bok 2.3-m telescope at Kitt Peak National Observatory, overlaid by the 38 region segments where the X-ray absorbing columns were measured.
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