Ultra-light Dark Matter is Incompatible with the Milky Way's Dwarf Satellites.

@article{Safarzadeh2019UltralightDM,
  title={Ultra-light Dark Matter is Incompatible with the Milky Way's Dwarf Satellites.},
  author={M. Safarzadeh and D. Spergel},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
  year={2019}
}
  • M. Safarzadeh, D. Spergel
  • Published 2019
  • Physics
  • arXiv: Cosmology and Nongalactic Astrophysics
  • The density profiles of dwarf galaxies are a highly varied set. If the dark matter is an Ultra-light particle such as axions, then simulations predict a distinctive and unique profile. If the axion mass is large enough to fit the ultra-faint dwarf (UFD) satellites($m\gtrapprox 10^{-21}$ eV), then the models do not fit the density profile of Fornax and Sculptor and are ruled out by more than $3-\sigma$ confidence. If the axion mass is in the mass range that can fit mass profiles of Fornax and… CONTINUE READING

    Figures from this paper.

    Fuzzy Dark Matter Soliton Cores around Supermassive Black Holes
    • 10
    • PDF
    Dynamical friction in a Fuzzy Dark Matter universe
    • 4
    • PDF

    References

    Publications referenced by this paper.
    SHOWING 1-10 OF 48 REFERENCES
    A Universal Density Profile from Hierarchical Clustering
    • 6,402
    • PDF
    Profiles of dark haloes: evolution, scatter and environment
    • 1,683
    • PDF
    Dark Matter Substructure within Galactic Halos
    • 2,056
    • PDF
    WHERE ARE THE MISSING GALACTIC SATELLITES
    • 1,933
    • PDF
    The Kinematics of the Ultra-faint Milky Way Satellites: Solving the Missing Satellite Problem
    • 668
    • PDF
    Ultralight scalars as cosmological dark matter
    • 509
    • PDF
    REIONIZATION AND THE ABUNDANCE OF GALACTIC SATELLITES
    • 643
    • PDF
    Fuzzy cold dark matter: the wave properties of ultralight particles.
    • 637
    • PDF