Magnetic Fields and the Cosmic Microwave Background

Details Magnetic Fields and the Cosmic Microwave Background Magnetic Fields and the Cosmic Microwave Background

2001-02-09

arxiv.org/abs/astro-ph/0102172v2

Class.Quant.Grav. 18 (2001) 1305-1310

Astronomy and Astrophysics

Astrophysics

5 pages revtex. v2 has minor changes to match published version

Scientific paper

10.1088/0264-9381/18/7/312

Observations of the high degree of isotropy of the cosmic microwave background are commonly believed to indicate that the Universe is `almost' Friedmann-Lemaitre-Robertson-Walker (at least since the time of last scattering). Theoretical support for this belief comes from the so-called Ehlers-Geren-Sachs Theorem. We show that a generalization of this theorem rules out any strong magnetic fields in the Universe. Our theoretical result is model-independent and includes the case of inhomogeneous magnetic fields, complementing previous results. We thus prove that cosmic microwave background observations severely constrain all types of primordial and protogalactic magnetic fields in the universe.

Affiliated with

Also associated with

No associations

Rating

Magnetic Fields and the Cosmic Microwave Background 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 Magnetic Fields and the Cosmic Microwave Background, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic Fields and the Cosmic Microwave Background will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-613032