2 papers
astro-ph.CO2022
Contribution to the 2022 Cosmology session of the 56th Rencontres de Moriond: Reionization constraints from HERA 21cm power spectrum limits
Stefan Heimersheim
I present our analysis of the 21cm power spectrum upper limits from the HERA radio interferometer, published in HERA Collaboration et al. 2022. We use the recent limits to constrai…
astro-ph.CO2020
Cannibalism hinders growth: Cannibal Dark Matter and the tension
Stefan Heimersheim, Nils Schöneberg, Deanna C. Hooper +1
Many models of dark matter have been proposed in attempt to ease the tension between weak lensing and CMB experiments. One such exciting possibility is cannibalistic dark mat…