Left panel: overlay of the high-resolution CO2−1 emission contours on top of an HST WFPC2 F606W filter image (from König et al. 2014). The insert shows a zoom into the 3′′ × 3′′ surrounding the Eye of the Medusa. Contours start at 2σ and are spaced in steps of 2σ (1σ ~0.7 Jy beam-1 km s-1). The locations of the most important dust lanes are indicated by gray and white curves. Center panel: distribution of the integrated intensity emission of the 3 mm continuum (blue contours) compared to the CO2−1 emission(gray contours and background). The 3 mm continuum contours start at 5σ and are spaced in steps of 3σ (1σ ~50 μJy beam-1). The main 3 mm continuum emission peak is located at the center of the Eye of the Medusa (E). Right panel: 1 mm continuum emission on top of the CO2−1 emission. Contours are at 3 and 6σ (1σ ~0.5 mJy beam-1). The emission peaks south of the AGN position, close to the center of the Eye. North is up, east to the left. The position of the 1.4 GHz continuum peak is marked by a white cross (Beswick et al. 2005). Beam sizes are 0.6′′ × 0.5′′ for CO2−1, 0.9′′ × 0.7′′ for the 3 mm continuum, and 1.9′′× 1.8′′ for the 1 mm continuum.
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