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Reconstructing the primordial spectrum of fluctuations of the universe from the observed nonlinear clustering of galaxiesIt was discovered that the nonlinear evolution of the two point correlation function in N-body experiments of galaxy clustering with Omega = 1 appears to be described to good approximation by a simple general formula. The underlying form of the formula is physically motivated, but its detailed representation is obtained empirically by fitting to N-body experiments. In this paper, the formula is presented along with an inverse formula which converts a final, nonlinear correlation function into the initial linear correlation function. The inverse formula is applied to observational data from the CfA, IRAs, and APM galaxy surveys, and the initial spectrum of fluctuations of the universe, if Omega = 1.
Document ID
19910055393
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Hamilton, A. J. S.
(Joint Inst. for Lab. Astrophysics Boulder, CO, United States)
Matthews, Alex
(Joint Institute for Laboratory Astrophysics; Colorado, University Boulder, United States)
Kumar, P.
(Joint Inst. for Lab. Astrophysics Boulder, CO, United States)
Lu, Edward
(High Altitude Observatory Boulder, CO, United States)
Date Acquired
August 15, 2013
Publication Date
June 10, 1991
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters
Volume: 374
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
91A40016
Funding Number(s)
CONTRACT_GRANT: NAGW-766
CONTRACT_GRANT: NSF AST-86-58022
Distribution Limits
Public
Copyright
Other

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