Binary Black Hole Population Properties Inferred from the First and Second Observing Runs of Advanced LIGO and Advanced Virgo
Abstract
The first two observing runs of the LIGO/Virgo gravitational-wave interferometer network have produced ten binary black holes as well as the historic detection of a binary neutron star. In this talk, I will show how the binary black hole properties measured from those detections are shaping our understanding of black hole populations. Through parameterized modelling of the mass, spin, and redshift distributions inferred from the events in those runs, several features are becoming apparent. Namely, binary mergers with masses above 45 solar masses must be comparatively rare, fast black hole spins which are aligned with the binary orbital angular momentum are disfavored, and there is preference against declining evolution of merger rate with redshift.
- Publication:
-
APS April Meeting Abstracts
- Pub Date:
- 2019
- Bibcode:
- 2019APS..APRR16001P