The seed magnetic field generated around recombination

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• Cyril Pitrou, University of Portsmouth
• Friday 28 January 2011, 13:00-14:00
• Pavilion B Potter Room (B1.19).

If you have a question about this talk, please contact Dr Sebastien Renaux-Petel.

Magnetic fields are known to be present on very large scales in the universe. However their origin is still debated and a possibility would be from amplification of a seed magnetic field generated in the early universe. I will review how vortical currents generated around the protons-electrons recombination (z around 1000) can be responsible for the creation of such seed field and I will discuss numerical results about its amplitude.

This talk is part of the DAMTP Friday GR Seminar series.

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