Active galactic nucleus feedback in clusters of galaxies

Details Active galactic nucleus feedback in clusters of galaxies Active galactic nucleus feedback in clusters of galaxies

2010-04-05

arxiv.org/abs/1004.0671v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

Refereed review article published in Chandra's First Decade of Discovery Special Feature edition of the Proceedings of the Nat

Scientific paper

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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