Spectrum of the northern nucleus, integrated over an aperture of 5-spaxel radius (r = 0.25″ corresponding to ∼130 pc). The blue curve is the spectrum from G140H/F100LP (cube1), the orange one from G235H/F170LP (cube2), and the red one from G395H/F290LP (cube3). Each cube spectrum shows a discontinuity in the middle of the band, which is due to the gap between the NIRSpec detectors. We indicated the brightest emission lines with vertical dashed lines (in blue those of molecular hydrogen, in black the others) and the more noticeable features, as the CO absorption bands, polycyclic aromatic hydrocarbons (PAH) and aliphatic emission, and CO₂ ice absorption.