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We present Gemini/GNIRS spectroscopy of the Seyfert 2 galaxy NGC 4388, withsimultaneous coverage from 0.85 - 2.5 $\mu$m. Several spatially-extendedemission lines are detected for the first time, both in the obscured andunobscured portion of the optical narrow line region (NLR), allowing us toassess the combined effects of the central continuum source, outflowing gas andshocks generated by the radio jet on the central 280 pc gas. The HI and [FeII]lines allow us to map the extinction affecting the NLR. We found that thenuclear region is heavily obscured, with E(B-V) ~1.9 mag. To the NE of thenucleus and up to ~150 pc, the extinction remains large, ~1 mag or larger,consistent with the system of dust lanes seen in optical imaging. We derivedposition-velocity diagrams for the most prominent lines as well as for thestellar component. Only the molecular gas and the stellar component display awell-organized pattern consistent with disk rotation. Other emission lines arekinematically perturbed or show little evidence of rotation. Extendedhigh-ionization emission of sulfur, silicon and calcium is observed todistances of at least 200 pc both NE and SW of the nucleus. We compared fluxratios between these lines with photoionization models and conclude thatradiation from the central source alone cannot explain the observedhigh-ionization spectrum. Shocks between the radio-jet and the ambient gas arevery likely an additional source of excitation. We conclude that NGC 4388 is aprime laboratory to study the interplay between all these mechanisms.

The complex, dusty narrow-line region of NGC 4388: Gas-jet interactions, outflows, and extinction revealed by near-IR spectroscopy