The Interaction Between Radio Galaxies and ICM in the Cores of Clusters

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Chandra Proposal Id #02800143

Scientific paper

The outflow of relativistic plasma from radio galaxies is one of the most efficient transport processes known in astrophysics. The observation of X-ray `holes' in a number cluster cores indicates that this expanding plasma evacuates the region of the lobes. Using the volume of the `hole' and the observed ICM pressure we can calculate the energy input into the lobe in the form of kinetic energy. We propose to observe four radio galaxies with symmetrical double lobes selected from the cores of a sample of 200 northern ROSAT clusters. These targets are carefully chosen using VLA imaging and represent the best opportunity to exploit the spatial resolution offered by Chandra.

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