Massive Milky Way satellites in cold and warm dark matter: dependence on cosmology

  title={Massive Milky Way satellites in cold and warm dark matter: dependence on cosmology},
  author={Emil Polisensky and Massimo Ricotti},
  journal={Monthly Notices of the Royal Astronomical Society},
We investigate the claim that the largest subhaloes in high resolution dissipationless cold dark matter (CDM) simulations of the Milky Way are dynamically inconsistent with observations of its most luminous satellites. We find that the inconsistency is largely attributable to the large values of \sigma_8 and n_s adopted in the discrepant simulations producing satellites that form too early and therefore are too dense. We find the tension between observations and simulations adopting parameters… 

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