The population properties of merging compact binaries from gravitational waves.
Date: Tuesday, 9 August 2022
Time: 6:00pm (AEST)
Speaker: Eric Thrane (Monash University, Australia)
Contact the organizer: Andriy Olenko a.olenko@latrobe.edu.au
Abstract: With the publication of the third gravitational-wave transient catalog (GWTC-3), the LIGO and Virgo Collaborations have confidently identified 90 signals from merging compact binaries. By analysing the morphology of each gravitational waveform, we are able to work out the masses and spins of the black holes and neutron stars that source these signals. By studying the distributions of black-hole mass, spin, and distance, we are painting a picture of the population properties of compact mergers, providing clues about the fate of massive stars and telling us how and where binary black holes are assembled. In this talk, I describe how we use Bayesian hierarchical modelling to study merging black holes. I emphasise the importance of model checking to avoid faulty conclusions from model misspecification.
Stefano Andreon - INAF-OA Brera, Italy (chair) Fabio Castagna - INAF-OA Brera, University of Insubria, Italy Andriy Olenko - La Trobe University, Australia Tsutomu T. Takeuchi - Nagoya University, Japan
Passcode: 234027