Ghost Radio Bubbles: The Fossil History of Activity in the Core of Abell 2597

Details Ghost Radio Bubbles: The Fossil History of Activity in the Core of Abell 2597 Ghost Radio Bubbles: The Fossil History of Activity in the Core of Abell 2597

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005cxo..prop.2023c&link_type=abstract

Chandra Proposal ID #07800350

Physics

Chandra Proposal Id #07800350

Scientific paper

Dense cluster cores often host powerful radio sources. The role of feedback between the ICM and the radio source is an unknown but critical issue. Chandra provides a chance to study the thermal gas at resolutions comparable to the radio. Radio sources undergo multiple outbursts over their lifetime, driving multiple radio lobes into the ICM. These lobes displace gas and inject energy. Older generations of bubbles rise buoyantly through the ICM. In Abell 2597, we find evidence of a radio plasma filled X-ray tunnel connecting the cluster core to a "ghost cavity". This tunnel provides an opportunity to probe the ICM physics across multiple radio outbursts in a cluster. Comparison of X-ray and radio properties will help determine if the tunnel is continuous, and if it is active or collapsing.

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