Effects of Cosmological Magnetic Helicity on the CMB

Details Effects of Cosmological Magnetic Helicity on the CMB Effects of Cosmological Magnetic Helicity on the CMB

2005-10-05

arxiv.org/abs/astro-ph/0510151v3

Astron.Nachr.327:414-417,2006

Astronomy and Astrophysics

Astrophysics

Talk given at the conference "The Origin and Evolution of Cosmic Magnetism", 29 August - 2 September 2005, Bologna, Italy. To

Scientific paper

10.1002/asna.200610544

In this talk I present a short review of primordial magnetic helicity effects on Cosmic Microwave Background (CMB) temperature and polarization anisotropies. These effects allow us to test for cosmological magnetic helicity, however, very accurate CMB fluctuation data is required. This scheme for magnetic helicity detection is valid only for a cosmological magnetic field with a present amplitude larger than $10^{-9}-10^{-10}$ Gauss.

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