Speaker
Dr
Mario Spera
(University of Innsbruck)
Description
The first confirmation of the existence of merging stellar-mass
black holes (BHs) came on September 14 2015, when the LIGO interferometers observed the gravitational-wave signal from the merger of two BHs with mass larger than 25 Msun (GW150914). Since then, four additional BH mergers were observed, and two of them have BHs with mass larger than 30 Msun. From the theoretical point of view, the models that predict the formation and evolution of binary BHs are still uncertain. In this talk, I will present the BH mass spectrum obtained from up-to-date population-synthesis simulations and I will also discuss the effect of stellar dynamics on the evolution of binary BHs.
Primary author
Dr
Mario Spera
(University of Innsbruck)
Co-authors
Michela Mapelli
(MIB)
Nicola Giacobbo
(University of Padova)