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COBE-DMR constraints on the nonlinear coupling parameter: a wavelet based method
L. Cayon, E. Martinez-Gonzalez, F. Argueso +2
Nonlinearity introduced in slow-roll inflation will produce weakly non-Gaussian CMB temperature fluctuations. We have simulated non-Gaussian large scale CMB maps (including COBE-DM…
The N-point correlation functions of the COBE-DMR maps revisited
H. K. Eriksen, A. J. Banday, K. M. Gorski
We calculate the two-, three- and (for the first time) four-point correlation functions of the COBE-DMR 4-year sky maps, and search for evidence of non-Gaussianity by comparing the…
Towards a model of full-sky Galactic synchrotron intensity and linear polarisation: a re-analysis of the Parkes data
G. Giardino, A. J. Banday, K. M. Gorski +3
We have analysed the angular power spectra of the Parkes radio continuum and polarisation survey of the Southern galactic plane at 2.4 GHz. We have found that in the multipole rang…