Jet/environment interactions of FR-I and FR-II radio galaxies

J. H. Croston; M. J. Hardcastle; M. Birkinshaw; D. M. Worrall

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arXiv · astro-ph/0404440

Jet/environment interactions of FR-I and FR-II radio galaxies

J. H. Croston·M. J. Hardcastle·M. Birkinshaw·D. M. Worrall

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Abstract

We present the results of new XMM observations of FR-I and FR-II radio galaxies that show the importance of jet/environment interactions for both radio-source structure and the properties of the surrounding gas. The FR-I observations reveal that the distribution of hot gas determines the radio-lobe morphology, and provide evidence that the subsonic expansion of the lobes heats the surrounding gas. The FR-II observations show that the sources are at equipartition and in pressure balance with their surroundings. Finally, we present an analysis of a sample of elliptical-dominated groups, showing that radio-source heating is common.

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J. H. Croston, M. J. Hardcastle, M. Birkinshaw, D. M. Worrall. 2004-04-22. Jet/environment interactions of FR-I and FR-II radio galaxies. https://arxiv.org/abs/astro-ph/0404440

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