Bubbles as tracers of heat input to cooling flows

Details Bubbles as tracers of heat input to cooling flows Bubbles as tracers of heat input to cooling flows

2007-01-31

arxiv.org/abs/astro-ph/0701891v1

Astronomy and Astrophysics

Astrophysics

Accepted for publication in MNRAS; 5 pages

Scientific paper

10.1111/j.1365-2966.2007.11575.x

We examine the distribution of injected energy in three-dimensional, adaptive-grid simulations of the heating of cooling flows. We show that less than 10 percent of the injected energy goes into bubbles. Consequently, the energy input from the nucleus is underestimated by a factor of order 6 when it is taken to be given by PVgamma/(gamma-1), where P and V are the pressure and volume of the bubble, and gamma the ratio of principal specific heats.

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