AGN activity and IGM heating in fossil cluster RX J1416.4+2315

Abstract

We study Active Galactic Nucleus (AGN) activity in the fossil galaxy cluster, RX J1416.4+2315. Radio observations were carried out using Giant Metrewave Radio Telescope (GMRT) at two frequencies, 1420 MHz and 610 MHz. A weak radio lobe that extends from the central nucleus is detected in 610 MHz map. Assuming the radio lobe originated from the central AGN, we show the energy injection into the Inter Galactic Medium (IGM) is only sufficient to heat up the central 50 kpc within the cluster core, while the cooling radius is larger ( $\sim$ 130 kpc). In the hardness ratio map, three low energy cavities have been identified. No radio emission is detected for these regions. We evaluated the power required to inflate the cavities and showed that the total energy budget is sufficient to offset the radiative cooling. We showed that the initial conditions would change the results remarkably. Furthermore, efficiency of Bondi accretion to power the AGN has been estimated.

Accepted for publication in AJ

References in corpus (12)

• Hot Accretion Flows Around Black Holes
• Heating Hot Atmospheres with Active Galactic Nuclei
• Shocks and cold fronts in galaxy clusters
• X-ray cavities in a sample of 83 SPT-selected clusters of galaxies: Tracing the evolution of AGN feedback in clusters of galaxies out to z=1.2
• The answer is blowing in the wind: Simulating the interaction of jets with dynamic cluster atmospheres
• Scaling relations in fossil galaxy groups
• The Mass Assembly of Fossil Groups of Galaxies in the Millennium Simulation
• Can AGN feedback break the self-similarity of galaxies, groups, and clusters?
• A fossil galaxy cluster; an X-ray and optical study of RX J1416.4+2315
• The central elliptical galaxy in fossil groups and formation of BCGs
• Giant cavities, cooling and metallicity substructure in Abell 2204
• Suppressing cluster cooling flows by self-regulated heating from spatially distributed population of AGNs

Cited by in corpus (6)

• Evolution of galaxy groups in the Illustris simulation
• The effect of environment on AGN activity: the properties of radio and optical AGN in void, isolated and group galaxies
• The XMM Cluster Survey: new evidence for the 3.5 keV feature in clusters is inconsistent with a dark matter origin
• Galaxy And Mass Assembly (GAMA): 'No Smoking' zone for giant elliptical galaxies?
• Merger history of central galaxies in Semi-Analytic Models of galaxy formation
• Chandra and HST Snapshots of Fossil System Progenitors