Maps (top panels) of the ionized Brγ, warm molecular (H₂ 2.12 μm) and partially ionized ([FeII] 1.64 μm) gas for IC 4687, prototype star-forming LIRG, obtained from the SINFONI data cubes. Based on the emission line maps, the high surface brightness regions identified as young star-forming (in blue), aged, SNe-dominated (in red), and extended diffuse (in white) are shown for reference (lower right panel). The distribution of these regions in the log([FeII]1.64 μm/Brγ) − log(H₂ 2.12 μm/Brγ) plane (lower central panel) occupy different areas indicating differences in the excitation conditions. The overall (spaxel-by-spaxel) distribution over the entire SINFONI FoV, as well as the line ratios for the nucleus and brightest emission line peaks are also shown (lower left panel).