Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-01-09
A&A 482, 747-753 (2008)
Astronomy and Astrophysics
Astrophysics
8 pages, 6 figures, typo corrected/replaced to match version published in A&A
Scientific paper
10.1051/0004-6361:20078777
It has been suggested by Roukema and coworkers (hereafter R04) that the topology of the Universe as probed by the ``matched circles'' method using the first year release of the WMAP CMB data, might be that of the Poincar\'e dodecahedral space (PDS) model. An excess in the correlation of the ``identified circles'' was reported by R04, for circles of angular radius of ~11 deg for a relative phase twist -36deg, hinting that this could be due to a Clifford translation, if the hypothesized model were true. R04 did not however specify the statistical significance of the correlation signal. We investigate the statistical significance of the signal using Monte Carlo CMB simulations in a simply connected Universe, and present an updated analysis using the three-year WMAP data. We find that our analyses of the first and three year WMAP data provide results that are consistent with the simply connected space at a confidence level as low as 68%.
Lew B. S.
Roukema Boudewijn F.
No associations
LandOfFree
A test of the Poincare dodecahedral space topology hypothesis with the WMAP CMB data 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 A test of the Poincare dodecahedral space topology hypothesis with the WMAP CMB data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A test of the Poincare dodecahedral space topology hypothesis with the WMAP CMB data will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-669394