Observational Constraints on the Influence of Active Galactic Nuclei on the Evolution of Galaxies

  • Christopher Mark Harrison

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xxiii
  2. Christopher Mark Harrison
    Pages 1-35
  3. Christopher Mark Harrison
    Pages 155-158
  4. Christopher Mark Harrison
    Pages 159-174
  5. Back Matter
    Pages 175-193

About this book


This prize-winning Ph.D. thesis by Chris Harrison adopts a multi-faceted approach to address the lack of decisive observational evidence, utilising large observational data sets from several world-leading telescopes. Developing several novel observational techniques, Harrison demonstrated that energetic winds driven by Active Galactic Nuclei (AGN) are found in a large number of galaxies, with properties in agreement with model predictions. One of the key unsolved problems in astrophysics is understanding the influence of AGN, the sites of growing supermassive black holes, on the evolution of galaxies. Leading theoretical models predict that AGN drive energetic winds into galaxies, regulating the formation of stars. However, until now, we have lacked the decisive observational evidence to confirm or refute these key predictions. Careful selection of targets allowed Harrison, to reliably place these detailed observations into the context of the overall galaxy population. However, in disagreement with the model predictions, Harrison showed that AGN have little global effect on star formation in galaxies. Theoretical models are now left with the challenge of explaining these results.


Galaxy evolution AGN Feedback Observations Active Galactic Nuclei IFU Observations of AGN IFU Observations of High-redshift Galaxies Herschel Observations of AGN Super Massive Black Hole Observations Suppression of Star Formation

Authors and affiliations

  • Christopher Mark Harrison
    • 1
  1. 1.Centre for Extragalactic AstronomyDurham University, Department of PhysicsDurhamUnited Kingdom

Bibliographic information