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Understanding the WMAP Cold Spot mystery
Pavel D. Naselsky, Per Rex Christensen, Peter Coles +3
The first and third year data releases from the WMAP provide evidence of an anomalous Cold Spot (CS) at galactic latitude b=-57deg and longitude l=209deg. We have examined the prop…
Instability of reconstruction of the low CMB multipoles
Pavel D. Naselsky, Oleg V. Verkhodanov, Mikkel T. B. Nielsen
We discuss the problem of the bias of the Internal Linear Combination (ILC) CMB map and show that it is closely related to the coefficient of cross-correlation K(l) of the true CMB…
Phase analysis of the cosmic microwave background from an incomplete sky coverage
Lung-Yih Chiang, Pavel D. Naselsky
Phases of the spherical harmonic analysis of full-sky cosmic microwave background (CMB) temperature data contain useful information complementary to the ubiquitous angular power sp…