Comparison between AKARI 3.3 μm PAH EQW and Spitzer/IRS 6.2 μm PAH EQW of the GOALS LIRG sample. The circles represent the sources with detections of both PAH features, whereas the left-pointing triangles represent detections of the 6.2 μm PAH but upper limits for the 3.3 μm PAH. The symbols are color-coded by the AGN bolometric fraction in the mid-infrared (Sect. 4.1; Díaz-Santos et al. 2017), which is indicated by the color bar shown in the bottom right. Galaxies with PAH_{3.3 μm} EQW < 0.04 μm and PAH_{6.2 μm} EQW ≥ 0.4 μm are also highlighted by the green squares. The gray regions are the areas where the implied galactic energy source (starburst or AGN) disagrees between 3.3 μm PAH EQW and 6.2 μm PAH EQW (high 3.3 μm PAH EQW but low 6.2 μm PAH EQW, or vice versa).