Coevolution of Central Massive Black Holes and Host Galaxies

02/12/2020 - 14:00 - 15:00
Remoto, com transmissão pela internet
Coevolution of Central Massive Black Holes and Host Galaxies
Paramita Barai
Supermassive black holes (SMBHs) existing at the centers of active galactic nuclei (AGN)  are widely observed through their multi-wavelength emission at all cosmic epochs, often in the form of powerful AGN outflows. Relatively recently, intermediate-mass BHs are observed hosted in dwarf galaxy centers. Accretion of matter onto these central black holes in galaxies liberates enormous amounts of feedback energy. The BH feedback affects the environment from pc to Mpc scales, thus playing crucial roles in the formation and evolution of galaxies and large-scale structures. I will present results from state-of-art cosmological hydrodynamical simulations performed using novel baryonic feedback models, investigating the coevolution of central massive BHs and their host galaxies. Especially I will focus on recent studies aiming to shed light on the question whether galaxies or their central BHs assembled their mass at an earlier cosmic epoch, or which grew first. I will also discuss the effects of BH feedback on quenching star-formation, and the BH-driven outflow properties.