Cosmological Magnetic Fields: Their Generation, Evolution and Observation

@inproceedings{RDurrer2013CosmologicalMF,
  title={Cosmological Magnetic Fields: Their Generation, Evolution and Observation},
  author={R.Durrer and A.Neronov},
  year={2013}
}
We review the possible mechanisms for the generation of cosmological magnetic fields, discuss their evolution in an expanding Universe filled with the cosmic plasma and provide a critical review of the literature on the subject. We put special emphasis on the prospects for observational tests of the proposed cosmological magnetogenesis scenarios using radio and gammaray astronomy and ultra high energy cosmic rays. We argue that primordial magnetic fields are observationally testable. They lead… 

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References

SHOWING 1-10 OF 319 REFERENCES

The origin of cosmic magnetic fields ∗

In this talk, I review a number of particle-physics models that lead to the creation of magnetic fields in the early universe and address the complex problem of evolving such primordial magnetic

The First Magnetic Fields

We review current ideas on the origin of galactic and extragalactic magnetic fields. We begin by summarizing observations of magnetic fields at cosmological redshifts and on cosmological scales.

Massive neutrinos and magnetic fields in the early universe

Primordial magnetic fields and massive neutrinos can leave an interesting signal in the CMB temperature and polarization. We perform a systematic analysis of general perturbations in the

Magnetic Fields in Galaxies

  • E. Zweibel
  • Physics
    Proceedings of the International Astronomical Union
  • 2010
Abstract The origin and evolution of magnetic fields in the Universe is a cosmological problem. Although exotic mechanisms for magneotgenesis cannot be ruled out, galactic magnetic fields could have

Galactic Magnetism: Recent developments and perspectives

▪ Abstract We discuss current observational and theoretical knowledge of magnetic fields, especially the large-scale structure in the disks and halos of spiral galaxies. Among other topics, we

Cosmology with inhomogeneous magnetic fields

Extragalactic Magnetic Field and the Highest Energy Cosmic Rays

The strength and spectrum of the extragalactic magnetic field (EGMF) are still unknown. Its measurement would help answer the question of whether galactic fields are purely a primordial relic or

Primordial magnetogenesis

The Search for a Primordial Magnetic Field

Large scale magnetic fields from gravitationally coupled electrodynamics

The generation of primordial magnetic seed fields during inflation is studied in a theory derived from the one-loop vacuum polarization effective action of the photon in a curved background. This
...