ETHOS - an effective theory of structure formation: dark matter physics as a possible explanation of the small-scale CDM problems

  title={ETHOS - an effective theory of structure formation: dark matter physics as a possible explanation of the small-scale CDM problems},
  author={Mark Vogelsberger and Jes{\'u}s Zavala and Francis-Yan Cyr-Racine and Christoph Pfrommer and Torsten Bringmann and Kris Sigurdson Mit and Dark Cosmology Centre and Harvard and Caltech and Hits and UiO and Ias Princeton and Ubc},
  journal={Monthly Notices of the Royal Astronomical Society},
We present the first simulations within an effective theory of structure formation (ETHOS), which includes the effect of interactions between dark matter and dark radiation on the linear initial power spectrum and dark matter self-interactions during non-linear structure formation. We simulate a Milky Way-like halo in four different dark matter models and the cold dark matter case. Our highest resolution simulation has a particle mass of 2.8 × 10^4 M_⊙ and a softening length of 72.4 pc. We… 
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Effective description of dark matter self-interactions in small dark matter haloes★
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Finite-Size Dark Matter and its Effect on Small-Scale Structure.
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