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astro-ph2008★ 38 cited
A model-independent test for scale-dependent non-Gaussianities in the CMB
C. Raeth, G. Morfill, G. Rossmanith +2
We present a model-independent method to test for scale-dependent non-Gaussianities in combination with scaling indices as test statistics. Therefore, surrogate data sets are gener…
astro-ph2008★ 26 cited
CMB likelihood approximation by a Gaussianized Blackwell-Rao estimator
Ø. Rudjord, N. E. Groeneboom, H. K. Eriksen +3
We introduce a new CMB temperature likelihood approximation called the Gaussianized Blackwell-Rao (GBR) estimator. This estimator is derived by transforming the observed marginal p…