English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The latest observations of line and continuum spectra emitted from theextended narrow line region (ENLR) of the Seyfert 2 galaxy NGC 7212 areanalysed using models accounting for photoionization from the active nucleusand shocks. The results show that relatively high (500--800 \kms) shockvelocities appear on the edge of the cone and outside of it. The model-inferredAGN 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 forSeyfert 2 galaxies. The preshock densities are characteristic of the ENLR andrange between 80--150 cm$^{-3}$. Nitrogen and sulphur are found depleted by afactor lower than 2, particularly at the eastern edge. Oxygen is depleted atseveral locations. The Fe/H ratio is approximately solar, whereas the Ne/Hrelative abundance is unusually high, 1.5--2 times the solar value. Modellingthe continuum spectral energy distribution (SED), we have found radiosynchrotron radiation generated by the Fermi mechanism at the shock front,whereas the X-rays are produced by the bremsstrahlung from a relatively hightemperature plasma.

Distribution of the heavy elements throughout the extended narrow line region of the Seyfert galaxy NGC 7212