CMB anisotropies in the presence of a stochastic magnetic field

Details CMB anisotropies in the presence of a stochastic magnetic field CMB anisotropies in the presence of a stochastic magnetic field

2010-07-19

arxiv.org/abs/1007.3163v2

Phys.Rev.D83:023006,2011

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

26 pages, 21 figures; sections 2 and 4 expanded; matches version published in PRD

Scientific paper

10.1103/PhysRevD.83.023006

Primordial magnetic fields present since before the epoch of matter-radiation equality have an effect on the anisotropies of the cosmic microwave background. The CMB anisotropies due to scalar perturbations are calculated in the gauge invariant formalism for magnetized adiabatic initial conditions. Furthermore the linear matter power spectrum is calculated. Numerical solutions are complemented by a qualitative analysis.

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