SED for the nucleus of IC 3639 at a ≲ 0.′′ 4 resolution (black dots), compared with the MIDI measurement (blue square) and the Spitzer/IRS-HR “optimal differential” spectrum from the CASSIS atlas (darkgreen line). Grey spikes represent the low spatial resolution measurements, i.e. the integrated SED of the host galaxy. Violet triangles correspond to the UV core. The grey-shaded area indicates the 2–10 keV and 0.5–30 keV intrinsic fluxes estimated for the models T and M in Boorman et al. (2016).
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