The Symbiosis between Radio Source and Galaxy Evolution
A special issue of Galaxies (ISSN 2075-4434).
Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 14924
Special Issue Editors
Interests: the study of activity in galaxies and its relation to galaxy evolution
Interests: active galactic nuclei (AGN); AGN feedback; radio galaxies; black holes; clusters of galaxies
Special Issue Information
Dear Colleagues,
Supermassive black holes located in the center of a galaxy can be fueled by infalling matter, producing extremely energetic phenomena such as luminous hot disks of accreting gas (accretion disks) and powerful outflows of relativistic plasma and magnetic fields (jets) in radio galaxies. We now know that the nuclei of a random galaxy will, statistically, contain a super-massive black hole whose mass is roughly 0.1% of the mass of the galaxy. It is has also now been shown that powerful AGN-driven outflows directly affect the evolution of galaxies, heating the galaxy's cold gas and/or expelling it from the central bulge regions. This, in turn, influences galaxies' star formation histories, mediating the relationship between host galaxy and central supermassive black hole and shaping the high luminosity end of the galaxy luminosity function. This process has been dubbed AGN Feedback and points to a direct link between nuclear activity (which occurs when the black hole is growing via accretion) and star formation and matter accretion (which occurs when the galaxy is growing). The growth of the central engine and the evolution of the galaxy are linked in a symbiotic relationship impacting their co-evolution. While AGN feedback is now routinely incorporated into hydrodynamical simulations of galaxy evolution, major uncertainties remain. We are yet to understand in detail how AGN interact with the forming and evolving host galaxies, and how the host galaxy and its evolution impacts the central black hole. In order to elucidate this fundamental process of energy exchange and growth that has shaped our universe's evolution, in this volume we will explore the physics behind the co-evolution of central massive black holes and galaxy formation in radio galaxies.
Prof. Dr. Stefi Baum
Prof. Dr. Christopher P. O'Dea
Guest Editors
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Keywords
- AGN feedback
- radio galaxies
- massive black holes
- galaxy evolution