期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 334, 期 4, 页码 769-776出版社
OXFORD UNIV PRESS
DOI: 10.1046/j.1365-8711.2002.05555.x
关键词
galaxies : active; galaxies : individual : PKS 1246-410; galaxies : nuclei; radio continuum : galaxies
We present multifrequency Very Large Array (VLA) observations of the radio galaxy PKS 1246-410 at the centre of the Centaurus cluster, and compare these results with recent Chandra observations. The unusual radio morphology of PKS 1246-410 probably results from interactions with the hot, X-ray-emitting gas. This gas, along with cluster magnetic fields, also produces substantial Faraday rotation measures towards PKS 1246-410. We discuss these observations in the context of a sample of 14 luminous X-ray clusters with embedded radio galaxies and possible cooling flows. A correlation is found between the cooling flow rate and the maximum Faraday rotation measures. Magnetic fields of strength 10-40 muG are found to be common to the centres of clusters with strong cooling flows, and somewhat lower field strengths of 2-10 muG are found in the non cooling-flow clusters.
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