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Resonance scales in the galaxy correlation function and the nature of dark matter

Resonance scales in the galaxy correlation function and the nature of dark matter One of the promising ways to determine the nature of dark matter is to study correlations in the distribution of galaxies. We analyze the influence of peculiarities in the inflaton potential on the spectrum of perturbations and on the galaxy correlation function in CDM models. We show that breaks in the inflaton potential create distinct features in the correlation function. It turns out that the appropriate choice of the potential parameters can change, and, in particular, increase the power of the spectrum in a given scale. We compare the galaxy correlation function in a CDM model with the nonstandard inflaton potential with the galaxy correlation function in a universe with baryonic dark matter, which also possesses peculiar features. We show that the galaxy correlation function in the CDM model considered here imitates quite well the galaxy correlation function in baryonic models. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review D American Physical Society (APS)

Resonance scales in the galaxy correlation function and the nature of dark matter

Physical Review D , Volume 50 (4) – Aug 15, 1994
8 pages

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Publisher
American Physical Society (APS)
Copyright
Copyright © 1994 The American Physical Society
ISSN
1089-4918
DOI
10.1103/PhysRevD.50.2488
Publisher site
See Article on Publisher Site

Abstract

One of the promising ways to determine the nature of dark matter is to study correlations in the distribution of galaxies. We analyze the influence of peculiarities in the inflaton potential on the spectrum of perturbations and on the galaxy correlation function in CDM models. We show that breaks in the inflaton potential create distinct features in the correlation function. It turns out that the appropriate choice of the potential parameters can change, and, in particular, increase the power of the spectrum in a given scale. We compare the galaxy correlation function in a CDM model with the nonstandard inflaton potential with the galaxy correlation function in a universe with baryonic dark matter, which also possesses peculiar features. We show that the galaxy correlation function in the CDM model considered here imitates quite well the galaxy correlation function in baryonic models.

Journal

Physical Review DAmerican Physical Society (APS)

Published: Aug 15, 1994

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