Panoramic view of the main arcs discussed in this work. Left panel (in F555W-band image): Arcs are marked with red contours to guide the eye. The arrows indicate 11 multiple images of the star-forming knots labeled 5.1a–m (see text and Fig. 2 for additional details). The magnification map (total magnification, μ_tot) is reported on the right panel (from Pignataro et al. 2021) coded according with the color bar in square root scale: it saturates at μ_tot ≃ 10 (black) and 100 (white). The black contours enclose the region where μ_tot > 500, marking the locus of the critical line. The arcs contain multiple images of the same portions of the Sunburst galaxy and are subjected to amplification spanning the range 15 − 100, with the critical line crossing the arcs several times.