SDSS J211852.96-073227.5: The first non-local, interacting, late-type
  intermediate Seyfert galaxy with relativistic jets
  It has been often suggested that a tangible relation exists between
relativistic jets in active galactic nuclei (AGN) and the morphology of their
host galaxies. In particular, relativistic jets may commonly be related to
merging events. Here we present for the first time a detailed spectroscopic and
morphological analysis of a Seyfert galaxy, SDSS J211852.96-073227.5, at $z =
0.26$. This source has previously been classified as a gamma-ray emitting
narrow-line Seyfert 1 galaxy. We re-observed it with the 6.5m Clay Telescope
and these new, high-quality spectroscopic data have revealed that it is
actually an intermediate-type Seyfert galaxy. Furthermore, the results of
modelling the $Ks$-band near-infrared images obtained with the 6.5m Baade
Telescope indicate that the AGN is hosted by a late-type galaxy in an
interacting system, strengthening the suggested connection between galaxy
interactions and relativistic jets.
