Primordial Non-Gaussian Signatures in the Sky

Details Primordial Non-Gaussian Signatures in the Sky Primordial Non-Gaussian Signatures in the Sky

1994-08-29

arxiv.org/abs/astro-ph/9408093v1

Astronomy and Astrophysics

Astrophysics

4pp; PostScript file

Scientific paper

10.1007/3-540-60024-8_85

The presence of non-Gaussian features in the CMB radiation maps represents one of the most long-awaited clues in the search for the actual structure of the primordial radiation. These features could shed some light on the non trivial task of distinguishing the real source of the primeval perturbations leading to large scale structure. In the present paper we briefly review recent work towards finding analytical estimates of the three- and four-point correlation functions and of their zero-lag limits, namely, the skewness and kurtosis, respectively. - Contributed talk to appear in the proceedings of "Birth of the Universe & Fundamental Physics", May 18-21, 1994, Rome, Italy.

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