Dispersion and flux maps of the region around NGC 1313 X–1. Left: The dispersion map of the average of the Hα, [N II]λ6853, and [S II]λ6716 lines, corrected for instrumental broadening (contours as in Fig. 2). The map has been smoothed with a Gaussian kernel with σ = 1.5 pixels. Right: [O I]λ6300 flux map showing some regions discussed throughout the paper, the ULX bubble (cyan), and the coincidentally close SNRs (orange). The position of the ULX is indicated with a green circle.