MAMBO intensity map of the structure around ϵ Eridani at λ = 1.2 mm restored with the CLEAN algorithm. The star ϵ Eridani is at the map center (0, 0), which is at α = 3^h32^m55.32^s and δ = −9°27′29.7′′ (15 November 2007). The telescope beam is shown as a hatched circle (FWHM = 10.7′′). Contour levels are 30%, 60%, and 90% of the northwest brightness peak. The first contour (30%) is at the level of the CLEAN residuals, which were not added back to the map for clarity, as is standard. The point source (1.2 mJy) close to the map center has been subtracted (see text of Sect. 3). The pixel size is 3.5′′, and the map is unsmoothed.