Long-term simulations of extragalactic jets: cavities and feedback

Details Long-term simulations of extragalactic jets: cavities and feedback Long-term simulations of extragalactic jets: cavities and feedback

Feb 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011iaus..275..126p&link_type=abstract

Jets at all Scales, Proceedings of the International Astronomical Union, IAU Symposium, Volume 275, p. 126-130

Astronomy and Astrophysics

Astronomy

Galaxies:Jets, Galaxies: Cooling Flows, Galaxies: Active, Relativistic Hydrodynamics

Scientific paper

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.

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