• Corpus ID: 252519363

Prompt cusps and the dark matter annihilation signal

  title={Prompt cusps and the dark matter annihilation signal},
  author={M. Sten Delos and S. M. White},
As gravitational collapse creates the first cosmic objects, a dark matter cusp forms immediately at every initial density maximum. Such prompt cusps have a density profile ρ ∝ r − 1 . 5 extending up to a limiting density dependent on the nature of dark matter. Numerical simulations and theoretical arguments suggest that the bulk of these cusps survive until the present day. Here we show that if dark matter is a thermally produced weakly interacting massive particle, many thousands of prompt cusps… 



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Prompt cusp formation from the gravitational collapse of peaks in the initial cosmological density field

  • S. White
  • Physics
    Monthly Notices of the Royal Astronomical Society: Letters
  • 2022
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