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Long-term simulations of extragalactic jets: cavities and feedback

Published online by Cambridge University Press:  24 February 2011

Manel Perucho ,
Vicent Quilis  and
José María Martí
Manel Perucho
Affiliation:
Departament d'Astronomia i Astrofísica, Universitat de València, Burjassot 46293 email: [email protected], [email protected], [email protected]
Vicent Quilis
Affiliation:
Departament d'Astronomia i Astrofísica, Universitat de València, Burjassot 46293 email: [email protected], [email protected], [email protected]
José María Martí
Affiliation:
Departament d'Astronomia i Astrofísica, Universitat de València, Burjassot 46293 email: [email protected], [email protected], [email protected]
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Abstract

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We present long-term numerical simulations of powerful extragalactic relativistic jets in two dimensions. The jets are injected in a realistic atmosphere with powers 1044, 1045 and 1046 erg/s, during tens of Myrs. After this time, the jet injection is switched off. We follow the evolution of the jets and associated shocks from 1 kpc to hundreds of kiloparsecs during more than 100 Myrs. The 1045 erg/s jet was simulated with leptonic and baryonic composition. Our results show that, for powerful jets, the main heating mechanisms are the driving shock-wave and mixing. We discuss the implications that these results have in the frame of cooling flows in clusters.

Keywords

galaxies:jetsgalaxies: cooling flowsgalaxies: activerelativistic hydrodynamics
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S275: Jets at all Scales , September 2010 , pp. 126 - 130
Copyright
Copyright © International Astronomical Union 2011

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