Authors: Cavagnolo, McNamara, Nulsen, Carilli, Jones & Birzan
Link to article: arxiv:1006.5699
The powerlaw scaling relation between jet power (derived from X-ray cavities) and radio power by Birzan et al. (2008) for clusters is extended to giant ellipticals. A powerlaw scaling is found over 6 orders of magnitude in jet power and it is found consistent with the relations of Willott et al. (1999) if the energy in non-radiating particles is about 100 times larger than in synchrotron-emitting electrons (ranging between tens to thousands). The scatter for the relation still is considerable - more than 1 dex wide for 68% confidence. The authors furthermore discuss the behaviour of poorly confined sources, which are not included in the fits.
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