Statut | Confirmé |
Série | SEM-GRECO |
Domaines | hep-th |
Date | Lundi 24 Septembre 2018 |
Heure | 11:00 |
Institut | IAP |
Salle | Salle des séminaires |
Nom de l'orateur | Chia |
Prenom de l'orateur | Horn Sheng |
Addresse email de l'orateur | |
Institution de l'orateur | University of Amsterdam |
Titre | Probing Ultralight Bosons with Binary Black Holes |
Résumé | Ultralight bosons exist in various proposed extensions to the Standard Model, which can form condensates around rapidly rotating black holes through a process called superradiance. These boson clouds have many interesting observational consequences, such as the continuous emission of monochromatic gravitational waves. In this talk, I will describe the dynamics of the system when it is part of a binary black hole. I will show that the presence of a binary companion greatly enriches the evolution of the boson clouds, most remarkably through the existence of resonant transitions between growing and decaying modes of the clouds. Finally, I will sketch some phenomenological consequences, both for the gravitational waves emitted by the clouds and the finite-size effects imprinted in the waveforms of the binary signal. |
Numéro de preprint arXiv | 1804.03208 |
Commentaires | |
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