Dwarf galaxies as a probe of a primordially magnetized Universe

Understand

The true nature of primordial magnetic fields (PMFs) and their role in the formation of galaxies still remains elusive.

• To shed light on these unknowns, we investigate their impact by varying two sets of properties: (i) accounting for the effect of PMFs on the initial matter power spectrum, and (ii) accounting for their magneto-hydrodynamical effects on the formation of galaxies.
• By comparing both we can determine the dominant agent in shaping galaxy evolution.
• We use the magneto-hydrodynamics code RAMSES, to generate multiple zoom-in simulations for eight different host halos of dwarf galaxies across a wide luminosity range of $10^3-10^6\,L_{\odot}$.