[Cosmo-pl] WMAP 3yr data - Omega_tot \approx 1.010-1.015 :)))))

[Boud Roukema]

Witam cosmo-pl,

The 3-year WMAP data is now available:
http://lambda.gsfc.nasa.gov/product/map/dr2/ilc_map_get.cfm

As expected from the Poincare Dodecahedral Space analyses, e.g.
http://arxiv.org/abs/astro-ph/0310253 Luminet et al.
http://arxiv.org/abs/astro-ph/0402608 Toruń
http://arxiv.org/abs/astro-ph/0412569 Aurich Lustig Steiner
http://arxiv.org/abs/astro-ph/0503014 Gundermann
http://arxiv.org/abs/astro-ph/0504656 Aurich Lustig Steiner

the estimates of Omega_total remain in the range 1.010-1.020. :))))

Spergel et al find:

http://lambda.gsfc.nasa.gov/product/map/dr2/pub_papers/threeyear/parameters/wmap_3yr_param.pdf

Omega_tot =
1.015 (+0.020,-0.016)  WMAP-3yr + SNLS (supernova legacy survey)
1.010 (+0.016,-0.009)  WMAP-3yr + HST key project on H_0

No matter how hard people try to combine different data sets, it seems
that nobody can get Omega_tot much closer to 1.000 (except by assumption).

In the conclusion, section 9, page 61 of Spergel et al., you'll see
that after people like me have repeated ad infinitum in many, many
seminars etc that WMAP does not imply a flat Universe, it only
implies a "nearly flat Universe", finally, Spergel et al. have started
using this expression:

"The WMAP data are consistent with nearly flat universe".

:)

Anyway, hopefully in the next week, i and the other people who have
volunteered ;) to help organise a small, "polish cosmology"
workshop/meeting in Toruń, probably in May, will send out a
"pre-registration" announcement...


pozdr
boud