Volume 497, Number 2, April II 2009
|Page(s)||343 - 346|
|Section||Cosmology (including clusters of galaxies)|
|Published online||05 March 2009|
Kolmogorov cosmic microwave background sky
Yerevan Physics Institute and Yerevan State University, Yerevan, Armenia e-mail: firstname.lastname@example.org
2 School of Mathematical Sciences, Monash University, Clayton, Australia
Accepted: 20 January 2009
A new map of the sky representing the degree of randomness in the cosmic microwave background (CMB) temperature has been obtained. The map based on estimation of the Kolmogorov stochasticity parameter clearly distinguishes the contribution of the Galactic disk from the CMB and reveals regions of various degrees of randomness that can reflect the properties of inhomogeneities in the Universe. For example, among the high randomness regions is the southern non-Gaussian anomaly, the Cold Spot, with a stratification expected for the voids. Existence of its counterpart, a Northern Cold Spot with almost identical randomness properties among other low-temperature regions is revealed. By its informative power, Kolmogorov's map can be complementary to the CMB temperature and polarization sky maps.
Key words: cosmology: cosmic microwave background
© ESO, 2009
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.