Power Fluctuations in the Wavelet Space: Large-Scale CMB Non-Gaussian Statistics
Astrophysics
2009-10-30 v1
Abstract
We analyse the large-scale coherence of the CMB anisotropy field with non-gaussian initial conditions usind 2-point function of the power fluctuations in the wavelet space. Employing the multivariate Edgeworth expansion (MEE) we constrain the normalization for the cosmic string mass-per-unit-lenght. The obtained value is consistent with the results obtained from the simulations of the evolution of the string network and by other large scale studies.
Cite
@article{arxiv.astro-ph/9806086,
title = {Power Fluctuations in the Wavelet Space: Large-Scale CMB Non-Gaussian Statistics},
author = {Lucia Popa},
journal= {arXiv preprint arXiv:astro-ph/9806086},
year = {2009}
}
Comments
9 pages, 4 figures in a single ps file