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Calzadilla et al. have used the Chandra satellite to make an X-ray
image of the galaxy cluster SPT-CLJ0528-5300, which harbors a very
radio-loud central Active Galactic Nuclei. The X-ray images shows
evidence of AGN-inflated cavities, which are consistent with the
orientation of the jet direction revealed by ATCA radio data,
suggesting the power of the radio jets has inflated bubbles in the hot
intra-cluster medium. The outburst is among the most energetic known
in the universe, demonstrating that such powerful outbursts can be
detected even in shallow X-ray exposures out to relatively high
redshifts, providing an avenue for studying the evolution of extreme
AGN feedback. The image above shows ATCA 2 GHz radio image of with
X-ray contours overlaid in white. The 5 GHz ATCA data are represented
by red contours at 0.4, 1.7, and 3.1 mJy/beam,, while the 9 GHz data
are represented by cyan contours at 0.5, 0.7, 1.0, and 1.3
mJy/beam. The dashed green ellipsoidal regions outline the X-ray
cavities. The radio source is coincident with the centroid of the
intra-cluster medium, and is elongated in the direction of the X-ray
cavities. The ATCA beam sizes are shown in the bottom-left corner.
More details are given
in
the paper, published in the Astrophysical Journal.
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