Markarian 3 18 cm MERLIN & EVN (contours) and HST [OIII]
(colours)
One of the best examples of the association of relativistic and
ionised gas in Seyfert nuclei, is seen in Markarian 3 mapped with
MERLIN + EVN at a resolution of ~25 mas. The [OIII] emission,
obtained from HST imaging, follows the synchrotron emission from a
highly collimated radio jet. This phenomenon is proving to be common
in Seyferts and gives information on both emission mechanisms in the
radio jets and the physics of the narrow line regions. Hydrodynamical
modelling suggests that the jet compresses a cocoon of gas which is
then photo- (or collisionally) ionized.
Kukula (Edinburgh), Holloway, Pedlar (Manchester), Ghosh (Arecibo) and
Schilizzi (JIVE)