Agn Feedback: How Much Is It? Does It Work?

Details Agn Feedback: How Much Is It? Does It Work? Agn Feedback: How Much Is It? Does It Work?

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006head....9.0751m&link_type=abstract

American Astronomical Society, HEAD meeting #9, #7.51; Bulletin of the American Astronomical Society, Vol. 38, p.358

Astronomy and Astrophysics

Astronomy

Scientific paper

AGN feedback plays a major role in models of galaxy formation, evolution, and black hole growth. However, observationally, the amount of feedback from AGN outflows is not well measured and most models assume an ad-hoc parameterization. We have, for the first time, measured accurately the outflow parameters in a Seyfert galaxy NGC 4051 using XMM data. We find that the mass loss in the outflow is only a few percent of the accretion rate and the outflow energy is only a small fraction of the radiative luminosity. If these physical characteristics are representative of AGN outflows, then they significantly fall short of the requirement for a susscessful feedback model. In this talk I will discuss our observational result and elaborate further on how feedback

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