Varying $α$ in the early universe: CMB, LSS and FMA

Details Varying $α$ in the early universe: CMB, LSS and FMA Varying $α$ in the early universe: CMB, LSS and FMA

2002-05-06

arxiv.org/abs/astro-ph/0205079v1

Astronomy and Astrophysics

Astrophysics

4 pages, uses moriond.sty, contribution to Moriond 2002 cosmology meeting at Les Arcs, France (March 16-23, 2002), to appear i

Scientific paper

I review recent constraints on and claimed detections of a time-varying fine-structure constant $\alpha$, and discuss our own work, particularly on the effects of $\alpha$ in the cosmic microwave background and large-scale structure. Our results are consistent with no variation in $\alpha$ from the epoch of recombination to the present day, and restrict any such variation to be less than about 4%. The forthcoming MAP and Planck experiments will be able to break most of the currently existing degeneracies between $\alpha$ and other parameters, and measure $\alpha$ to better than percent accuracy.

Affiliated with

Also associated with

No associations

Rating

Varying $α$ in the early universe: CMB, LSS and FMA 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 Varying $α$ in the early universe: CMB, LSS and FMA, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Varying $α$ in the early universe: CMB, LSS and FMA will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-496998