Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...19710710t&link_type=abstract
American Astronomical Society, 197th AAS Meeting, #107.10; Bulletin of the American Astronomical Society, Vol. 32, p.1582
Astronomy and Astrophysics
Astronomy
Scientific paper
Although interactions between extragalactic radio sources and their environs must occur, it has been difficult to directly measure the environmental impact. It is also of some interest to understand the pressure contribution of both the hot X-ray emitting gas and cluster magnetic fields. The recent wealth of high resolution, high-sensitivity data from the Chandra X-ray Observatory has revealed many dramatic interactions, and has provided a superior knowledge of the thermal density distribution. This, in combination with Faraday Rotation Measure images from radio observations with the VLA, gives us new insights into cluster field strengths and topologies. We present radio and X-ray overlays for a sample of bright radio galaxies embedded in luminous X-ray clusters. To date high resolution, sensitive VLA and Chandra observations are available for the Perseus A, PKS0745-191, Hydra A, 3C295, A1795, and Centaurus clusters. An expanded VLA (EVLA) could provide a similarly dramatic increase in our understanding of galaxy-environment interactions, especially the role of the magnetic fields.
Allen S. A.
Fabian Andrea C.
Taylor Greg B.
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