Azimuthal profiles of the dust emission around ϵ Eridani computed for MAMBO (black) and SCUBA (blue). The MAMBO profile has been computed from the unsmoothed image with the photosphere subtracted. Each MAMBO point represents the mean brightness over a small sector with an opening angle of 10° and ranging radially from 10′′ to 30′′. Points are independent and uncertainties are the noise rms of the map divided by the square root of the number of pixels in each sector (~6 pixels). The SCUBA profile is from Greaves et al. (2005) and has been divided by 2, for clarity. The SE counterpart is inconsistent between MAMBO and SCUBA; this is discussed in Sect. 4. The angle increases counterclockwise from zero at north, and clumps are labeled.