Academy of Finland  
Funding decision
Organisation University of Helsinki
Project title The role of supermassive black holes in the cosmological formation of massive galaxies
Applicant / Contact person Johansson, Peter
Decision No. 339127
Decision date 03.06.2021
Funding period 01.09.2021 - 31.08.2025
Funding 480 232
Project description
Supermassive black holes with masses ranging from 1 million to 10 billion solar masses are found at the centres of all massive galaxies. When galaxies merge their supermassive black holes will also merge producing copious amounts of gravitational waves in the process. In this project we run using supercomputers high-resolution numerical simulations of galaxies forming in a full cosmological setting. The simulations are run using our new simulation code KETJU, which is able for the first time to follow accurately global galactic-scale dynamical and astrophysical processes, while simultaneously solving the dynamics of supermassive black holes. Using KETJU we can study at unprecedented accuracy the dynamics of supermassive black holes to separations of 10 Schwarzschild radii, the formation of cores in massive galaxies and finally provide predictions for both the electromagnetic and gravitational wave signals from massive galaxies with merging SMBHs that can be compared with observations.