Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Low Variance at large scales of WMAP 9 year data   We use an optimal estimator to study the variance of the WMAP 9 CMB field at
low resolution, in both temperature and polarization. Employing realistic Monte
Carlo simulation, we find statistically significant deviations from the
$\Lambda$CDM model in several sky cuts for the temperature field. For the
considered masks in this analysis, which cover at least the 54% of the sky, the
WMAP 9 CMB sky and $\Lambda$CDM are incompatible at $ \ge 99.94%$ C.L. at large
angles ($>5^\circ$). We find instead no anomaly in polarization. As a byproduct
of our analysis, we present new, optimal estimates of the WMAP 9 CMB angular
power spectra from the WMAP 9 year data at low resolution.

13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an