Primordial Magnetic Field Effects on the CMB and Large-Scale Structure

Figure 2

Ratio of stocahstic PMF pressure and tension sources. For illustration, the cutoff scale 𝑘_𝐶 was fixed to 𝑘_𝐶=10 Mpc⁻¹. The pressure dominates for 𝑛_B<−1.5, and the magnetic tension dominates for 𝑛_B>−1.5.