Massive Neutrinos and Magnetic Fields in the Early Universe

Details Massive Neutrinos and Magnetic Fields in the Early Universe Massive Neutrinos and Magnetic Fields in the Early Universe

2009-11-16

arxiv.org/abs/0911.2714v4

Phys.Rev.D81:043517,2010

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

26 pages, 5 figures; changed to match PRD version. Includes links to Mathematica notebooks and CAMB modifications

Scientific paper

10.1103/PhysRevD.81.043517

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 radiation-dominated universe, accounting for any primordial magnetic field and including leading- order effects of the neutrino mass. We show that massive neutrinos qualitatively change the large- scale perturbations sourced by magnetic fields, but that the effect is much smaller than previously claimed. We calculate the CMB power spectra sourced by inhomogeneous primordial magnetic fields, from before and after neutrino decoupling, including scalar, vector and tensor modes, and consistently modelling the correlation between the density and anisotropic stress sources. In an appendix we present general series solutions for the possible regular primordial perturbations.

Affiliated with

Also associated with

No associations

Rating

Massive Neutrinos and Magnetic Fields in the Early Universe does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Massive Neutrinos and Magnetic Fields in the Early Universe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Massive Neutrinos and Magnetic Fields in the Early Universe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-498100