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Status |
Confirmed |
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Seminar Series |
IPHT-HEP |
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Subjects |
hep-ph |
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Date |
Tuesday 5 February 2019 |
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Time |
16:00 |
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Institute |
IPHT |
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Seminar Room |
Salle Claude Itzykson, Bât. 774 |
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Speaker's Last Name |
Cyril Pitrou |
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Speaker's First Name |
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Speaker's Email Address |
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Speaker's Institution |
IAP - Institut d'Astrophysique de Paris |
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Title |
Anisotropies of the astrophysical gravitational background |
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Abstract |
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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