The Complex Core of Abell 2199: The X-Ray and
Radio Interaction
F.N. Owen 1
& J.A. Eilek2
The cluster Abell 2199 is one of the prototypical ``cooling flow''
clusters. Its central cD galaxy is host to a steep-spectrum radio
source, of the type associated with cooling cores.
VLA radio image of 3C338
In this paper we
combine radio data with new ROSAT HRI data to show that conditions in
its inner core, within about 40 kpc, are complex and interesting. Energy
and momentum flux from the radio jet have been significant in the
dynamics of the gas in the core. In addition, the Faraday data
detects a dynamically important magnetic field there. The core of the
X-ray luminous gas is not a simple, spherically symmetric cooling
inflow. In addition, we believe the X-ray gas has had strong effects
on the radio source. It seems to have disrupted the jet flow, which
has led to dynamical history very different from the usual radio
galaxy.
Radio contours of 3C338, overlaid on ROSAT X-ray image
This particular source is much younger than the galaxy, which
suggests the disruptive effects lead to an on-off duty cycle for such
sources.
1NRAO
2NMT
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