Exploiting the Effective-One-Body Approach for Large-Mass-Ratio Black Hole Binaries

par Angelica Albertini (Charles University, Prague)

jeudi 5 mars 2026, 14:45 → 16:00 Europe/Paris

Amphithéâtre Léon Motchane (IHES)

Séminaire Amplitudes et Gravitation sur l'Yvette (IHES/IPhT)

The effective-one-body (EOB) approach is a powerful formalism that maps the two-body problem in general relativity into the motion of a single body in an effective metric. EOB-based models are nowadays providing fast and accurate gravitational wave (GW) templates for comparable-mass coalescing compact binaries, namely the sources observed by the currently operating GW detectors. Third-generation detectors will instead allow us to detect signals from different sources, among which are black hole binaries with a larger mass ratio, which require a dedicated modelling. After briefly introducing the EOB formalism, I will discuss past and ongoing efforts in adapting an EOB waveform model in order to efficiently describe the evolution of large-mass-ratio binaries.

 

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