Comparison between the initial conditions and the snapshot at 0.51 Gyr for the tidal-shock simulation described in Sect. 5.2 in the case of mass M_* = 10⁶ M_⊙. The top and bottom panels show the projections on the x − y and x − z planes, respectively. The clump stellar particles are shown as red and black dots for the snapshots at t = 0 Gyr and t = 0.51 Gyr, respectively. The centres of clumps at t = 0 Gyr and t = 0.51 Gyr are shown as a black and red star, respectively, with an horizontal line of length 4 r_s, i, where r_s, i is the initial Plummer scale radius. The grey dashed curves represent the trajectory of the clump. The orange curves trace iso-density contours of the Sparkler disc external potential. The centre of the system is marked by a black cross.