Numerical Simulations of the Interaction of Jets with the Intracluster Medium

Details Numerical Simulations of the Interaction of Jets with the Intracluster Medium Numerical Simulations of the Interaction of Jets with the Intracluster Medium

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004ap%26ss.293..247b&link_type=abstract

Astrophysics and Space Science, v. 293, Issue 1, p. 247-254 (2004).

Astronomy and Astrophysics

Astrophysics

1

Jets, X-Ray Emission, Cluster Of Galaxies

Scientific paper

We study, by numerical simulations, the propagation of an axisymmetric supersonic jet in an isothermal King atmosphere and we analyse the evolution of the resulting X-ray properties and their dependence on the jet physical parameters. We show the existence of two distinct regimes of interaction, with strong and weak shocks. In the first case shells of enhanced X-ray emission are to be expected, whereas in the second case we expect deficit of X-ray emission coincident with the cocoon. Analysing the results of our simulations we find that the jet kinetic power is the main parameter controlling the transition between the two regimes. We also discuss, in the same scheme, the ICM heating induced by the jet propagation, considering its effects on the observed relations between the cluster X-ray luminosity and temperature and between cluster entropy and temperature.

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