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Title

Testing the origin of cosmological magnetic fields through the large-scale structure consistency relations
Authors
Berger, Philippe
Kechagias, Alexandros
Riotto, Antonio Walter
Published in Journal of Cosmology and Astroparticle Physics. 2014, vol. 052014, no. 025
Abstract We study the symmetries of the post-recombination cosmological magnetohydrodynamical equations which describe the evolution of dark matter, baryons and magnetic fields in a self-consistent way. This is done both at the level of fluid equations and of Vlasov-Poisson-Maxwell equations in phase space. We discuss some consistency relations for the soft limit of the (n+1)-correlator functions involving magnetic fields and matter overdensities. In particular, we stress that any violation of such consistency relations at equal-time would point towards an inflationary origin of the magnetic field.
Keywords Primordial magnetic fields — Magnetohydrodynamics — Dark matter theory — Inflation
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Other version: http://stacks.iop.org/1475-7516/2014/i=05/a=025?key=crossref.3815637bc7cd72a3ae4571ee3cc73dd9
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Faculté des sciences / Section de physique / Département de physique théorique
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(ISO format) 		BERGER, Philippe, KECHAGIAS, Alexandros, RIOTTO, Antonio Walter. Testing the origin of cosmological magnetic fields through the large-scale structure consistency relations. In: Journal of Cosmology and Astroparticle Physics, 2014, vol. 052014, n° 025. https://archive-ouverte.unige.ch/unige:40679

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Deposited on : 2014-10-03

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