Scientific article
Open access

Microwave background anisotropies from Alfvén waves

Published inPhysical review. D. Particles and fields, vol. 58, no. 123004, 9
Publication date1998

We investigate microwave background anisotropies in the presence of primordial magnetic fields. We show that a homogeneous field with fixed direction can amplify vector perturbations. We calculate the correlations of δT/T explicitly and show that a large scale coherent field induces correlations between al-1,m and al+1,m. We discuss constraints on the amplitude and spectrum of a primordial magnetic field imposed by observations of CMB anisotropies.

Citation (ISO format)
DURRER, Ruth, KAHNIASHVILI, Tina, YATES, Andrew. Microwave background anisotropies from Alfvén waves. In: Physical review. D. Particles and fields, 1998, vol. 58, n° 123004, p. 9. doi: 10.1103/PhysRevD.58.123004
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Article (Accepted version)
ISSN of the journal0556-2821

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