2004/04/22 by J. H. Croston, JH Croston, Croston, J. H. +7
Physics and Astronomy · #Astrophysics (astro-ph) #Astrophysics and Star Formation Studies #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #Radio Astronomy Observations and Technology #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0404440
8 pages, 3 figures. To appear in "X-ray and Radio Connections", eds. Sjouwerman, L.O. & Dyer, K.K. (http://www.aoc.nrao.edu/events/xraydio). Version with full-resolution images at http://www.star.bris.ac.uk/~judec/jet_env.pdf
arxiv created 2004/04/22 · openalex publication_date 2004/04/22 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.