Testing for Gaussianity Through the Three Point Temperature Correlation Function

Details Testing for Gaussianity Through the Three Point Temperature Correlation Function Testing for Gaussianity Through the Three Point Temperature Correlation Function

1993-05-09

arxiv.org/abs/astro-ph/9305009v1

Phys.Rev.Lett. 71 (1993) 1124-1127

Astronomy and Astrophysics

Astrophysics

12 pages, Latex, Fermilab- Pub-93/013-A

Scientific paper

10.1103/PhysRevLett.71.1124

One of the crucial aspects of density perturbations that are produced by the standard inflation scenario is that they are Gaussian where seeds produced by topological defects tend to be non-Gaussian. The three point correlation function of the temperature anisotropy of the cosmic microwave background radiation (CBR) provides a sensitive test of this aspect of the primordial density field. In this paper, this function is calculated in the general context of various allowed non-Gaussian models. It is shown that by COBE and the forthcoming South Pole and Balloon CBR anisotropy data may be able to test provide a crucial test of Gaussianity.

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