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Statut |
Confirmé |
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Série |
IPHT-HEP |
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Domaines |
hep-ph |
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Date |
Mardi 5 Fevrier 2019 |
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Heure |
16:00 |
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Institut |
IPHT |
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Salle |
Salle Claude Itzykson, Bât. 774 |
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Nom de l'orateur |
Cyril Pitrou |
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Prenom de l'orateur |
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Addresse email de l'orateur |
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Institution de l'orateur |
IAP - Institut d'Astrophysique de Paris |
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Titre |
Anisotropies of the astrophysical gravitational background |
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Résumé |
The astrophysical background of gravitational waves (AGWB) is made up by the incoherent superposition of gravitational wave signals emitted by a large number of resolved and unresolved astrophysical sources from the onset of stellar activity until today. I present a theoretical framework to fully characterize the AGWB in terms of energy density anisotropies which is based on the resolution of Olbers' paradox. I also discuss how these results can be recovered from a Boltzmann approach with an ad-hoc GW emissivity. It is found that the predictions of the signal angular statistics depend on the astrophysical modelling, hence this observable opens a new window on the history of compact objects populations. |
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Numéro de preprint arXiv |
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Commentaires |
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Fichiers attachés |
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