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

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

2004-04-22

arxiv.org/abs/astro-ph/0404440v1

Astronomy and Astrophysics

Astrophysics

8 pages, 3 figures. To appear in "X-ray and Radio Connections", eds. Sjouwerman, L.O. & Dyer, K.K. (http://www.aoc.nrao.edu/ev

Scientific paper

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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