The X-ray gaseous environment of dying radio sources

Details The X-ray gaseous environment of dying radio sources The X-ray gaseous environment of dying radio sources

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cxo..prop.2650m&link_type=abstract

Chandra proposal ID #10800166

Computer Science

Scientific paper

We propose Chandra observations of a sample of five galaxy clusters which harbor dying radio galaxies recently discovered by us in the radio. Dying radio sources are very rare objects. We argue that their intriguing association with clusters implies that the pressure of the dense intra-cluster medium (perhaps a cooling flow) prevents quick liquidation of a dying radio lobe through adiabatic expansion. We will use the proposed observations to test this hypothesis and to compare the actual fading radio structures with the X-ray image. We intend to investigate a possible correlation between the duration of the relic phase of the de-energized radio lobes and the pressure of the exter nal medium in which they are embedded.

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