Implications of GWTC-3 on primordial black holes from vacuum bubbles

Understand

The population of black holes inferred from the detection of gravitational waves by the LIGO-Virgo-KAGRA Collaboration has revealed interesting features in the properties of black holes in the Universe.

• We analyze the GWTC-3 dataset assuming the detected black holes in each event had an either astrophysical or primordial origin.
• In particular, we consider astrophysical black holes described by the fiducial \textsc{Power Law + Peak} distribution and primordial black holes whose mass function obeys a broken power law.
• These primordial black holes can be generated by vacuum bubbles that nucleate during inflation.