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Closing in on Dark Matter with JWST

Speaker

Prof. Tom BROADHURST

Affiliation

UPV/DIPC Basque Country Spain

Date July 8, 2025 (Tuesday)
Time 2:00 p.m.
Venue Room 522, 5/F, Chong Yuet Ming Physics Building, The University of Hong Kong

Abstract

We show how light axions generic in String Theory provide definitive predictions that are borne out by deep lensing and galaxy formation data from JWST. This wave-like behaviour was predicted by our pioneering GPU simulations, forming a bosonic condensate with astronomical size de Broglie scale waves, and very distinguishable from standard heavy particle CDM. We argue the soliton ground state is responsible for the ubiquitous Little Red Dot galaxies discovered with JWST, that evolve by wave action over the Huibble time to resemble the puzzling Ultra Diffuse galaxies found locally.

Anyone interested is welcome to attend.