Density perturbations in the Brans-Dicke theory
type: Item
instance of: scholarly article
title: Density perturbations in the Brans-Dicke theory
zbMATH Open document ID: 0883.53063
DOI: 10.1007/BF00645648
author: J. P. Baptista
author: Julio C. Fabris
author: S. V. B. Gonçalves
published in: Astrophysics and Space Science
publication date: 1998-03-23T00:00:00Z
full work available at URL: https://arxiv.org/abs/gr-qc/9603015
review text: The authors investigate the behavior of linearized density perturbations in the scalar-tensor theory of gravity proposed by Brans and Dicke. Four equations of state for the cosmic substratum are distinguished: vacuum, inflation, dust and radiation. The background solutions are assumed as spatially flat with a power-law for the expansion of the scale factor and the scalar field. In all cases the density perturbations an be described by Bessel functions. Their behaviour (growing and decaying modes) is discussed in detail.
Mathematics Subject Classification ID: 53Z05
Mathematics Subject Classification ID: 83C25
Mathematics Subject Classification ID: 83D05
zbMATH DE Number: 1080013
zbMATH Keywords: scalar-tensor theory
zbMATH Keywords: density perturbations
reviewed by: Heinz Dehnen
MaRDI profile type: Publication
arXiv ID: gr-qc/9603015
cites work: Mach's Principle and a Relativistic Theory of Gravitation
cites work: A new basis for cosmology
cites work: Inflationary universe: A possible solution to the horizon and flatness problems
cites work: Behavior of Friedmann-Robertson-Walker cosmological models in scalar- tensor gravity
cites work: Q5670643
cites work: Q5558293
OpenAlex ID: W2038791767
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description: scientific article