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IC 5063: AGN driven outflow of warm and cold gas
R. Morganti[1], T. Oosterloo[1], J. Holt[2,3],
C. Tadhunter[2], J.M. van der Hulst[3]
[1] ASTRON, Netherlands Foundation for Research in Astronomy, NL;
[2] Dep. of Physics and Astronomy, Sheffield University, UK;
[3] Kapteyn Astronomical Institute, Groningen, NL
Abstract
The southern Seyfert galaxy IC 5063 was the first AGN where a fast outflow of neutral
hydrogen was detected. Here we present new optical spectra that were taken with the E
SO-NTT to compare the kinematics of the ionised gas with that of the neutral hydrogen
component in order to study the mechanism that could drive this outflow. The data rev
eal extremely complex gas kinematics, including the presence of an outflow of ionised
gas (with speeds of several hundred km/s) at the location of the brighter radio lobe.
This outflow is strikingly similar to that of the HI. We consider the interaction
between the radio jet and the ISM to be the most likely mechanism for the extreme kine
matics and a possible scenario is described.
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