A detailed multi-wavelength study of the properties of the triple-peaked AGN Mrk 622 showing different aspects of the nuclear emission region is presented .
Radio , near- and mid-infrared , optical and X-ray data has been considered for the analysis .
In the optical , the WHAN diagnostic diagrams show that the three nuclear peaks are strong active galactic nuclei since the EW of H { \alpha } is > 6 Å and \log [ NII ] \lambda 6584/H \alpha ratio is > -0.4 .
Optical variability of both the continuum flux and intensity of the narrow emission lines is detected in a time-span of 13 years .
The size of the narrow line region is found to be 2.7 pc , with a light-crossing time of 8.7 y .
Analysis done to an archival Hubble Space Telescope image at 1055.2 nm shows that the host galaxy has a 3.6 kpc inner bar with PA = 74 ^ { \circ } , faint spiral arms and a pseudobulge , evolving through secular processes .
High resolution mid-infrared images obtained with the Gran Telescopio Canarias ( GTC ) and the instrument CanariCam show that the nuclear emission at 11.6 \mu m is not spatially resolved .
Very Large Array archival observations at 10 GHz reveal a core source with a total flux density of 1.47 \pm 0.03 mJy .
The spectral index of the core between 8 and 12 GHz is -0.5 \pm 0.2 , characteristic of AGN .
The core deconvolves into a source with dimensions of 82 \pm 13 mas \times 41 \pm 20 mas , and a PA = 70 \pm 18 deg ; which suggests that the core is elongated or that it is constituted by multiple components distributed along a \sim 65 ^ { \circ } axis .