演講資訊

摘要：

Multiple questions about the early accretion rates, duty cycles, and nature of high-redshift supermassive black holes are still open. Most numerical simulations and semi-analytic models are able to reproduce the available high-z observables despite implementing different models of early (z>10) black hole growth and feedback. Using a comprehensive cosmological model of galaxy and black hole formation and evolution (DELPHI), we aim to break this model degeneracy by showing how different black hole growth models impact quasar and galaxy observables at z>5 in the intermediate-mass range. This can provide guidance for future observational surveys carried out by upcoming missions such as LISA and ATHENA. Adding physically-motivated assumptions on the spin and magnetic flux of the black hole, we can also study the emergence of jetted AGN, focusing on their duty cycle across a wide halo mass range, achieving a better understanding of the role jets play in galaxy evolution.