The latest observations of line and continuum spectra emitted from the extended narrow line region ( ENLR ) of the Seyfert 2 galaxy NGC 7212 are analysed using models accounting for photoionization from the active nucleus and shocks .
The results show that relatively high ( 500–800 km s ^ { -1 } ) shock velocities appear on the edge of the cone and outside of it .
The model-inferred AGN flux , which is lower than 10 ^ { -11 } photons cm ^ { -2 } s ^ { -1 } eV ^ { -1 } at the Lyman limit , is more typical of low-luminosity AGN , and less so for Seyfert 2 galaxies .
The preshock densities are characteristic of the ENLR and range between 80–150 cm ^ { -3 } .
Nitrogen and sulphur are found depleted by a factor lower than 2 , particularly at the eastern edge .
Oxygen is depleted at several locations .
The Fe/H ratio is approximately solar , whereas the Ne/H relative abundance is unusually high , 1.5–2 times the solar value .
Modelling the continuum spectral energy distribution ( SED ) , we have found radio synchrotron radiation generated by the Fermi mechanism at the shock front , whereas the X-rays are produced by the bremsstrahlung from a relatively high temperature plasma .