Fig. 8.
Revised starburst/AGN diagnostic diagram using 3.3 μm PAH EQW and Fν(4.3 μm)/Fν(2.8 μm). The symbols are the same as in Fig. 2. The blue and beige areas are the regions we propose for identifying LIRGs whose infrared continuum emission is dominated by starbursts or AGN, respectively (see also Eqs. (1) and (2)). The white area denotes composite sources (Eq. (3)).
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