Energetic proton heating of gas in the core of the Perseus cluster

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Cooling Flows (Astrophysics), Galactic Clusters, Gas Heating, Intergalactic Media, Protons, Radio Sources (Astronomy), Gas Temperature, Proton Energy, Proton Flux Density, Thermal Analysis

Scientific paper

Gas in the inner cores of rich clusters that contain central radio sources may be permeated by a high flux of energetic protons. Heating by these protons is likely to play a significant role in the thermal balance of the gas, thereby reducing the inferred cooling and mass accretion rates. This is shown to be the case in the radio halo region of NGC 1275 in the Perseus cluster.

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