Long range correlation in cosmic microwave background radiation
摘要
We investigate the statistical anisotropy and Gaussianity of temperature fluctuations of Cosmic Microwave Background radiation (CMB) data from {\it Wilkinson Microwave Anisotropy Probe} survey, using the multifractal detrended fluctuation analysis, rescaled range and scaled windowed variance methods. The multifractal detrended fluctuation analysis shows that CMB fluctuations has a long range correlation function with a multifractal behavior. By comparing the shuffled and surrogate series of CMB data, we conclude that the multifractality nature of temperature fluctuation of CMB is mainly due to the long-range correlations and the map is consistent with a Gaussian distribution.
引用
@article{arxiv.astro-ph/0602461,
title = {Long range correlation in cosmic microwave background radiation},
author = {M. Sadegh Movahed and F. Ghasemi and Sohrab Rahvar and M. Reza Rahimi Tabar},
journal= {arXiv preprint arXiv:astro-ph/0602461},
year = {2011}
}
备注
10 pages, 7 figures, V2: Added comments, references and major corrections