2008

High-Resolution Simulation on Structure Formation with Extremely Light Bosonic Dark Matter

Woo, Tak-Pong, Chiueh, Tzihong

Understand

An alternative bosonic dark matter model is examined in detail via high-resolution simulations.

  • These bosons have particle mass of order $10^{-22}eV$ and are non-interacting.
  • If they do exist and can account for structure formation, these bosons must be condensed into the Bose-Einstein state and described by a coherent wave function.
  • This matter, also known as Fuzzy Dark Matter (Hu, Barkana & Gruzinov 2000),, is speculated to be able, first, to eliminate the sub-galactic halos to solve the problem of over-abundance of dwarf galaxies, and, second, to produce flat halo cores in galaxies suggested by some observations.

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