Maps of the ρ Ophiuchi molecular cloud region at their original angular resolution. From left to right, top row: Planck 28.5; 44.1; 70.3; and 100 GHz. Bottom row: Planck 143 and 857 GHz; 1.4 GHz; and Hα. The maps cover 5° × 5° centred on and have linear colour scales. The graticule has 1° spacing in Galactic coordinates. The circular aperture and background annulus, which were used to calculate the flux density (see text), are indicated. The strong AME is evident at 28.5 and 44.1 GHz.