Connecting MeerKAT Radio Continuum Properties to GAMA Optical Emission-line and WISE Mid-infrared Activity

The identification of AGN in large surveys has been hampered by seemingly discordant classifications arising from differing diagnostic methods, usually tracing distinct processes specific to a particular wavelength regime. However, as shown Yao et al. (2020), the combination optical emission line measurements and mid-infrared photometry can be used optimise discrimination capability between star formation activity. In this paper we test our new classification scheme combining existing GAMA-WISE data with high-quality MeerKAT radio continuum covering 8 deg$^2$ GAMA G23 region. Using sample 1 841 galaxies (z < 0.25), investigate total infrared (derived 12$\mu$m) luminosity ratio, q(TIR), its relationship optical-infrared star-forming (SF) classifications. We find that while q(TIR) is efficient at detecting activity massive generally appearing quiescent infrared, it becomes less reliable for cases where host galaxy dominant. identify up 70 % more AGNs not discernible and/or wavelengths. median SF 2.57 $\pm$ 0.23 consistent previous local universe estimates.