Comparison of JWST/NIRSpec IFU and HST imaging. Left: Image generated from the NIRSpec R100 datacube, integrating over the spectral range 1.1–1.4 μm. The colour bar is in units of 10⁻¹⁹ erg s⁻¹ cm⁻² per spatial pixel. Right: HST image obtained with WFC3 and F125W filter resampled at the pixel size used with NIRSpec (i.e. 0.050″). The inset zooms in on the region around the emission peak used to align the NIRSpec cube (red isophotes) with the image represented with an unsaturated colour code. Here, and in all the spectral maps presented in this work, the (0, 0) corresponds to coordinates α = 03^h 11^m 33^s.248 and δ = −58° 23′33″.24 (white cross). In the image the peak of the lens galaxy is at relative coordinates (−0.64″, −0.29″). The green lines indicate the border of the NIRSpec IFU FoV. The black and white circles in the bottom-left corners of the panels represent the FWHW of the respective PSFs.