Gravitational Waves from Black-Hole Encounters: Prospects for Ground- and Galaxy-Based Observatories

Understand

Close hyperbolic encounters of black holes (BHs) generate certain Burst With Memory (BWM) events in the frequency windows of the operational, planned, and proposed gravitational wave (GW) observatories.

• We present detailed explorations of the detectable parameter space of such events that are relevant for the LIGO-Virgo-KAGRA and the International Pulsar Timing Array (IPTA) consortia.
• The underlying temporally evolving GW polarization states are adapted from Cho et al.
• [Phys.