Imprints of spherical non-trivial topologies on the CMB

Details Imprints of spherical non-trivial topologies on the CMB Imprints of spherical non-trivial topologies on the CMB

2007-02-16

arxiv.org/abs/astro-ph/0702436v2

Phys.Rev.Lett.99:081302,2007

Astronomy and Astrophysics

Astrophysics

More comments and references added, results and conclusions unchanged. This version to appear in PRL

Scientific paper

10.1103/PhysRevLett.99.081302

The apparent low power in the CMB temperature anisotropy power spectrum derived from WMAP motivated us to consider the possibility of a non-trivial topology. We focus on some simple spherical multi-connected manifolds (Quaternionic, Octahedral, Truncated Cube and Poincare spaces) and discuss their implications for the CMB in terms of the power spectrum, maps and the correlation matrix. We also perform Bayesian model comparison against the fiducial best-fit LCDM based both on the power spectrum and the correlation matrix to assess their statistical significance. We find that the first year power spectrum shows a slight preference for the Truncated Cube space, but the 3-year data show no evidence for any of these spaces.

Affiliated with

Also associated with

No associations

Rating

Imprints of spherical non-trivial topologies on the CMB 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 Imprints of spherical non-trivial topologies on the CMB, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Imprints of spherical non-trivial topologies on the CMB will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-195984