Speaker
Karsten Jedamzik
(University of Montpellier)
Description
The presence of primordial magnetic fields (PMFs) at recombination
may be tested by current and future high precision CMB observations. The most sensitive impact on CMB anisotropies by PMFs seems to be baryon clumping on small scales. PMFs of weak strength could alleviate the Hubble tension, providing a tentative
indirect detection of PMFs at recombination. I present first results of the most-up-to-date numerical simulations of the influence of PMFs on recombination, taking into account so far neglected effects.
