Dwarf Galaxies Imply Dark Matter is Heavier than $2.2×{10}^{−21}\text{ }\text{ }\mathrm{eV}$

Author(s): Tim Zimmermann, James Alvey, David J. E. Marsh, Malcolm Fairbairn, and Justin I. Read Through data-driven reconstructions of the dark matter density profiles within the Leo II dwarf Milky Way satellite galaxy, a rigorous lower bound of 2.2×10−21 eV is set on the mass of a hypothetical bosonic dark matter particle. [Phys. Rev. Lett. 134, 151001] Published Mon Apr 14, 2025