Positive and negative feedback by AGN jets in high-redshift galaxies

Abstract

Simulations of feedback by jets from active galactic nuclei (AGN) in the past mostly focused on the interaction at large scales as the circumgalactic medium or intra-cluster medium for clusters of galaxies. Only in recent years, simulations have included the interaction of jets with a highly inhomogeneous medium as required by a multi-phase interstellar medium (ISM). At the same time, feedback by AGN has become a common component for cosmological simulations of galaxy evolution to form massive galaxies compatible with observations. I will present some of our recent results and will put them into further context of other feedback simulations and how the opposing effects of positive and negative feedback by jets might be understood in terms of different properties of the ISM.

arXiv comment6 pages, 1 figure, published in final form in Reviews in Modern Astronomy, Vol. 26, AN 335, 531. Based on invited talk at annual meeting 2013 of the Astronomische Gesellschaft

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