Ultra-light scalar dark matter with the Lyman-$\alpha$ forest - Archive ouverte HAL
Communication Dans Un Congrès Année : 2018

Ultra-light scalar dark matter with the Lyman-$\alpha$ forest

Résumé

Ultra-light dark matter particles with mass ma ∼ 10 −22 eV, named Fuzzy DarkMatter (FDM), constitute the dark matter candidate with the lowest masspossible. They yield a remarkable phenomenology and could also provide asolution to the small scale CDM "issues". One probe for such models is theLyman-α forest, which provides an indirect measurement for the small-scalematter power spectrum. We compare simulation-based predictions for the Lyman-αforest with the SDSS-DR9 and higher-resolution data, and find that the data isin tension with FDM masses in the range $10^{−22} \le m_a \le 2 − 3 \times 10^{−21}$ eV.
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Dates et versions

hal-02946230 , version 1 (22-09-2020)

Identifiants

  • HAL Id : hal-02946230 , version 1
  • INSPIRE : 1813511

Citer

E. Armengaud. Ultra-light scalar dark matter with the Lyman-$\alpha$ forest. 53rd Rencontres de Moriond on Cosmology, Mar 2018, La Thuile, Italy. pp.291-294. ⟨hal-02946230⟩
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