2007•arXiv (Cornell University)Open access

Probing Non-Gaussianity In The Cosmic Microwave Background Anisotropies: One Point Distribution Function

E. Jeong, George F. Smoot

Abstract

We analyze WMAP 3 year data using the one-point distribution functions to probe the non-Gaussianity in the Cosmic Microwave Background (CMB) Anisotropy data. Computer simulations are performed to determine the uncertainties of the results. We report the non-Gaussianity parameter f_NL is constrained to 26

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Key concepts: CMB cold spot, Cosmic microwave background, Non-Gaussianity, Physics, Anisotropy, Astrophysics, COSMIC cancer database, Distribution function