Cold and Fuzzy Dark Matter

2000/03/26 by Wayne Hu, Rennan Barkana, Andrei Gruzinov · 6 citations
Physics and Astronomy · #astro-ph #hep-ph

paper · pdf · doi:10.1103/physrevlett.85.1158

published as Phys.Rev.Lett. 85 (2000) 1158-1161 · 4 pages, 2 figures, submitted to PRL

arxiv created 2000/03/26 · arxiv updated 2009/11/30

Abstract

Cold dark matter (CDM) models predict small-scale structure in excess of observations of the cores and abundance of dwarf galaxies. These problems might be solved, and the virtues of CDM models retained, even without postulating \it ad hoc dark matter particle or field interactions, if the dark matter is composed of ultra-light scalar particles (m ~ 10^-22eV), initially in a (cold) Bose-Einstein condensate, similar to axion dark matter models. The wave properties of the dark matter stabilize gravitational collapse providing halo cores and sharply suppressing small-scale linear power.

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• Exploring Ultralight Dark Matter Self-Coupling via the Gravitational Wave Background
• Dynamical friction for circular orbits in self-interacting ultralight dark matter and Fornax globular clusters
• Cosmological evolution of collisionless relativistic gases as dark matter
• Matière noire et (ou) gravitation modifiée : une approche historique et épistémologique
• Lyman-α forest constraints on pure and mixed fuzzy dark matter
• A Reusable Hierarchical Framework for Joint Inference of Ultralight-Dark-Matter Mass and Core-Halo Scaling