Are Cluster Magnetic Fields Primordial ?

Details Are Cluster Magnetic Fields Primordial ? Are Cluster Magnetic Fields Primordial ?

2003-06-10

arxiv.org/abs/astro-ph/0306211v2

Phys.Rev.Lett. 91 (2003) 251301; Erratum-ibid. 93 (2004) 179901

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures, missing factor in Eq.4 added

Scientific paper

10.1103/PhysRevLett.91.251301

We present results of a detailed and fully non-linear numerical and analytical investigation of magnetic field evolution from the very earliest cosmic epochs to the present. We find that, under reasonable assumptions concerning the efficiency of a putative magnetogenesis era during cosmic phase transitions, surprisingly strong magnetic fields 10^{-13} - 10^{-11} Gauss, on comparatively small scales 100 pc - 10 kpc may survive to the present. Building on prior work on the evolution of magnetic fields during the course of gravitational collapse of a cluster, which indicates that pre-collapse fields of 4\times 10^{-12} Gauss extant on small scales may suffice to produce clusters with acceptable Faraday rotation measures, we question the widely hold view that cluster magnetic fields may not be entirely of primordial origin.

Affiliated with

Also associated with

No associations

Rating

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

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-368387