Power Fluctuations in the Wavelet Space: Large-Scale CMB Non-Gaussian Statistics

Details Power Fluctuations in the Wavelet Space: Large-Scale CMB Non-Gaussian Statistics Power Fluctuations in the Wavelet Space: Large-Scale CMB Non-Gaussian Statistics

1998-06-05

arxiv.org/abs/astro-ph/9806086v1

Astronomy and Astrophysics

Astrophysics

9 pages, 4 figures in a single ps file

Scientific paper

10.1016/S1384-1076(98)00029-3

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.

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