SIMBAD references

2007MNRAS.380L..67B - Mon. Not. R. Astron. Soc., 380, L67-L70 (2007/September-1)

Shock heating by Fanaroff-Riley type I radio sources in galaxy clusters.

BRUGGEN M., HEINZ S., ROEDIGER E., RUSZKOWSKI M. and SIMIONESCU A.

Abstract (from CDS):

Feedback by active galactic nuclei (AGN) is frequently invoked to explain the cut-off of the galaxy luminosity function at the bright end and the absence of cooling flows in galaxy clusters. Meanwhile, there are recent observations of shock fronts around radio-loud AGN. Using realistic 3D simulations of jets in a galaxy cluster, we address the question what of fraction of AGN energy is dissipated in shocks. We find that weak shocks that encompass the AGN have Mach numbers of 1.1-1.2 and dissipate at least 2 per cent of the mechanical luminosity of the AGN. In a realistic cluster medium, even a continuous jet can lead to multiple shock structures, which may lead to an overestimate of the AGN duty cycles inferred from the spatial distribution of waves.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): shock waves - galaxies: active - galaxies: clusters: general - galaxies: jets - galaxies: nuclei

Simbad objects: 11

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2020.02.22-15:51:02

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