Comparison between PACS images and deconvolved VLT/FORS1 V-band image (see Fig. 4 in Leão et al. 2006). The field-of-view is 204′′  ×  204′′. Left-hand image: deconvolved PACS 100 μm image after subtraction of the smooth halo of the circumstellar envelope (flux units being mJy/arcsec²) with superposed contours (in blue) of the V-band image by Leão et al. (2006). The red circle marks the region in which the flux is unreliable because of PSF artefacts (see Fig. 2). Right-hand image: combined image of the PACS 70 μm (green), PACS 100 μm (red), and V-band image (blue). The outermost arcs detected in the V-band image (at a radius of  ~ 32′′, 53′′, and 73′′) are clearly seen in the PACS images as well. (For the best result, viewing this figure electronically is recommended.)