The Origin of Magnetic Fields in Galaxies

Details The Origin of Magnetic Fields in Galaxies The Origin of Magnetic Fields in Galaxies

2009-10-27

arxiv.org/abs/0910.5248v2

Phys.Rev.D81:067301,2010

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

10 pages, 3 figures

Scientific paper

10.1103/PhysRevD.81.067301

Microgauss magnetic fields are observed in all galaxies at low and high redshifts. The origin of these intense magnetic fields is a challenging question in astrophysics. We show here that the natural plasma fluctuations in the primordial universe (assumed to be random), predicted by the Fluctuation-Dissipation-Theorem, predicts $\sim 0.034 \mu G$ fields over $\sim 0.3$ kpc regions in galaxies. If the dipole magnetic fields predicted by the Fluctuation-Dissipation-Theorem are not completely random, microgauss fields over regions $\gtrsim 0.34$ kpc are easily obtained. The model is thus a strong candidate for resolving the problem of the origin of magnetic fields in $\lesssim 10^{9}$ years in high redshift galaxies.

Affiliated with

Also associated with

No associations

Rating

The Origin of Magnetic Fields in Galaxies 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 The Origin of Magnetic Fields in Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Origin of Magnetic Fields in Galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-717891