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Statut |
Confirmé |
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Série |
LPTHE-PPH |
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Domaines |
hep-ph |
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Date |
Vendredi 26 Avril 2024 |
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Heure |
14:00 |
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Institut |
LPTHE |
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Salle |
Library |
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Nom de l'orateur |
Dondarini |
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Prenom de l'orateur |
Alessandro |
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Addresse email de l'orateur |
alessandro [dot] dondarini [at] phd [dot] unipi [dot] it |
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Institution de l'orateur |
Pisa University |
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Titre |
The NANOGrav Bound On Ultralight Dark Matter |
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Résumé |
The detection of the stochastic gravitational wave background by NANOGrav imposes constraints on the mass of compact cores of ultralight dark matter, also known as ``solitons'', surrounding supermassive black holes found at the centers of large galaxies. The strong dynamical friction between the rotating black holes and the solitons competes with gravitational wave emission, resulting in a suppression of the characteristic strain in the nHz frequency range. Our findings rule out solitons arising from the condensation of ultralight dark matter particles with masses ranging from $1.3 \times 10^{-21}$ eV to $1.4 \times 10^{-20}$ eV. |
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Numéro de preprint arXiv |
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Commentaires |
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Fichiers attachés |
- slides.pdf (2792339 bytes)
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