22–26 Sept 2025
Europe/Lisbon timezone

Axions and the formation of supermassive black holes at cosmic dawn

24 Sept 2025, 09:00
40m

Speaker

Prof. Pierre Sikivie (UFL)

Description

Axion dark matter thermalizes by gravitational self-interactions and forms a Bose-Einstein condensate. It is shown that the rethermalization of the axion fluid during the initial collapse of large scale overdensities at cosmic dawn transports angular momentum outward sufficiently fast that black holes form with masses ranging from approximately $10^5$ to a few times $10^{10}~M_\odot$.

Author

Prof. Pierre Sikivie (UFL)

Presentation materials

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