AGN Feedback in Clusters of Galaxies

Abstract

Observations made during the last ten years with the Chandra X-ray Observatory have shed much light on the cooling gas in the centers of clusters of galaxies and the role of active galactic nucleus (AGN) heating. Cooling of the hot intracluster medium in cluster centers can feed the supermassive black holes found in the nuclei of the dominant cluster galaxies leading to AGN outbursts which can reheat the gas, suppressing cooling and large amounts of star formation. AGN heating can come in the form of shocks, buoyantly rising bubbles that have been inflated by radio lobes, and the dissipation of sound waves.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2010
Accession Number
ADA520956

Entities

People

  • Brian R. Mcnamara
  • Craig L. Sarazin
  • Elizabeth L. Blanton
  • Scott W. Randall
  • T. E. Clarke

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Black Holes
  • Case Studies
  • Dissipation
  • Emission
  • Feedback
  • Frequency
  • High Resolution
  • Luminosity
  • Observation
  • Observatories
  • Optical Properties
  • Rayleigh Taylor Instability
  • Repetition Rate
  • Sound Waves
  • Spectra
  • X Rays

Fields of Study

  • Physics

Readers

  • Astronomy/Astrophysics
  • Energy Conservation and Renewable Energy Engineering.
  • Fluid Mechanics and Fluid Dynamics.