Extracted spectrum (top) and the continuum images (bottom) of JWST/MIRI-MRS observations of B1-c. Top panel: JWST/MIRI-MRS spectrum of B1-c extracted from the reduced datacubes. The spectrum slices of three sub-bands in each of the four MIRI-MRS Channels are distinguished in three different colors. Bottom panels: continuum images in four Channels (1: 4.9–7.65 μm; 2: 7.51–11.7 μm; 3: 11.55–17.98 μm; 4: 17.7–27.9 μm). The sizes of the PSF and the aperture for spectrum extraction increase as a function of wavelength, and are denoted by white circles, respectively. The extraction position of the ALMA spectrum (also the continuum peak) in Fig. A.2 is marked here using the same green cross. The ALMA extraction position is well within the MIRI apertures, and the small offset to the aperture center is likely due to the lower accuracy of the JWST pointing.