Date: 2 June 2022, 4:00pm
Speaker: Hector O. Silva
Affiliation: Max Planck Institute
Tencent/VooV Meeting ID: 778-9225-7517
Online Meeting Link: https://meeting.tencent.com/dm/9uaGFjZhZL8A
It was recently shown that gravity theories that couple a dynamical scalar field to the Gauss-Bonnet invariant can lead to spontaneous scalarization of black holes, allowing these objects to grow "scalar hair" once certain conditions are met and to remain "bald" otherwise. While most works on the topic have focused on isolated black holes, progress has recently been made in understanding this effect in binary black hole systems. I will give an overview of what has been achieved so far in this context. I will discuss new phenomena that happen in black-hole binaries and explore some of the potential observational consequences of these results in gravitational-wave astronomy.