ETHOS ‐ an effective theory of structure formation: Impact of dark acoustic oscillations on cosmic dawn

  title={ETHOS ‐ an effective theory of structure formation: Impact of dark acoustic oscillations on cosmic dawn},
  author={Julian B. Mu{\~n}oz and Sebastian Bohr and Francis-Yan Cyr-Racine and Jes{\'u}s Zavala and Mark Vogelsberger},
  journal={Physical Review D},
Upcoming data of the 21-cm hydrogen line during cosmic dawn ($z\ensuremath{\sim}10--30$) will revolutionize our understanding of the astrophysics of the first galaxies. Here we present a case study on how to exploit those same measurements to learn about the nature of dark matter (DM) at small scales. Focusing on the effective theory of structure formation (ETHOS) paradigm, we run a suite of simulations covering a broad range of DM microphysics, connecting the output of $N$-body simulations to… 

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