Jul 6 – 13, 2022
Bologna, Italy
Europe/Rome timezone

Post-Recombination Spectral Distortions from Dark Matter Energy Injection

Jul 7, 2022, 9:35 AM
Room 11 (Magenta A)

Room 11 (Magenta A)

Parallel Talk Dark Matter Dark Matter


Wenzer Qin (MIT)


Dark matter interactions with Standard Model particles can inject energy at early times, altering the standard evolution of the early universe. In particular, this energy injection can perturb the spectrum of the cosmic microwave background (CMB) away from that of a perfect blackbody. For this study, I will discuss recent work to update the DarkHistory code package to more carefully track interactions among low energy electrons, hydrogen atoms, and radiation, in order to accurately compute the evolution of the CMB spectral distortion in the presence of Dark Matter energy injection. I will show results for the contribution to the spectral distortions from redshifts z < 3000 for arbitrary energy injection scenarios.

In-person participation Yes

Primary author

Presentation materials