| Abstract [eng] |
This thesis, ‘Supermassive Black Hole Feeding and Feedback’, investigates the complex interplay between material feeding a supermassive black hole (accretion) and the fast wind created in the process (feedback) and how these influence galaxy evolution. The author uses idealised hydrodynamical simulations to isolate particular aspects of this highly complex field. The work consists of five chapters. The first goes over the history of black hole observations and the general mechanisms of accretion and feedback, highlighting the activity history of our own Galaxy, the Milky Way. The second chapter summarises the numerical methods employed. Later chapters describe the results of various simulations. In the third chapter, I investigate the feeding of the black hole Sgr A* in an idealised model of the Galactic Centre. In the Fourth chapter, we present a more realistic sub-grid prescription for the process of accretion. Finally, in the fifth chapter, I show how kiloparsecs-scale outflows evolve in a complex environment, together with presenting a computationally efficient way to inject feedback. The results presented in this thesis inform us about the nature of active galaxies and highlight the highly complex interplay between feeding and feedback in the vicinity of the SMBH. |
