Density wake mode (l = 2,m = 2) in the ClB of RHG097. Dashed lines in all panels indicate the location of the bar in the stellar disk while solid lines denote the phase angle corresponding to the bar mode in the classical bulge (ClB). Towards the later phases of the evolution, the ClBb becomes progressively stronger. The red arrow denotes the rotation of the disk bar. We note that at 1 Gyr, a clear bar has not developed yet. The unit of time is in Gyr.