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Testing for the Gaussian nature of cosmological density perturbations through the three-point temperature correlation functionOne 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 the Cosmic Background Explorer and the forthcoming South Pole and balloon CBR anisotropy data may be able to provide a crucial test of the Gaussian nature of the perturbations.
Document ID
19930071215
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Luo, Xiaochun
(NASA Lewis Research Center Cleveland, OH, United States)
Schramm, David N.
(Chicago Univ.; NASA/Fermilab Astrophysics Center Batavia, IL, United States)
Date Acquired
August 16, 2013
Publication Date
August 23, 1993
Publication Information
Publication: Physical Review Letters
Volume: 71
Issue: 8
ISSN: 0031-9007
Subject Category
Astrophysics
Accession Number
93A55212
Funding Number(s)
CONTRACT_GRANT: NAGW-1321
CONTRACT_GRANT: NSF AST-90-22629
CONTRACT_GRANT: NAGW-2381
Distribution Limits
Public
Copyright
Other

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