

Other version: http://stacks.iop.org/1475-7516/2014/i=05/a=025?key=crossref.3815637bc7cd72a3ae4571ee3cc73dd9
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Testing the origin of cosmological magnetic fields through the large-scale structure consistency relations |
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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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Citation (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. doi: 10.1088/1475-7516/2014/05/025 https://archive-ouverte.unige.ch/unige:40679 |