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24 April 2024 |
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Article overview
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Tests of Gaussianity | | A.M. Aliaga
; E. Martinez-Gonzalez
; L. Cayon
; F. Argueso
; J.L. Sanz
; R.B. Barreiro
; J.E. Gallegos
; | | Date: |
24 Oct 2003 | | Subject: | astro-ph | | Abstract: | We review two powerful methods to test the Gaussianity of the cosmic microwave background (CMB): one based on the distribution of spherical wavelet coefficients and the other on smooth tests of goodness-of-fit. The spherical wavelet families proposed to analyse the CMB are the Haar and the Mexican Hat ones. The latter is preferred for detecting non-Gaussian homogeneous and isotropic primordial models containing some amount of skewness or kurtosis. Smooth tests of goodness-of-fit have recently been introduced in the field showing some interesting properties. We will discuss the smooth tests of goodness-of-fit developed by Rayner and Best for the univariate as well as for the multivariate analysis. | | Source: | arXiv, astro-ph/0310706 | | Services: | Forum | Review | PDF | Favorites | |
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