AIA/SDO 131 Å image of the November 3 event. Left: image of the event outlining the position of the hot loop below the CME ejecta. Cuts taken to analyse the oscillation are displayed and are separated by  ~4 Mm. The distance co-ordinate s begins at the top leg and ends at the bottom leg. Right: a difference image highlighting the loop oscillation, which was produced by subtracting the image taken at 12:20:57 from the one at 12:22:57 UT. The solar limb is indicated by the solid white line.