Structure formation constraints on the Jordan-Brans-Dicke theory

Acquaviva, V., Baccigalupi, C., Leach, S. M., Liddle, A. R. and Perrotta, F. (2005) Structure formation constraints on the Jordan-Brans-Dicke theory. Physical Review D, 71 (10). pp. 1040251-1040256. ISSN 0556-2821

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Abstract

We use cosmic microwave background data from WMAP, ACBAR, VSA and CBI, and galaxy power spectrum data from 2dF, to constrain flat cosmologies based on the Jordan–Brans–Dicke theory, using a Markov Chain Monte Carlo approach. Using a parametrization based on = 1/4!, and performing an exploration in the range ln 2 [−9, 3], we obtain a 95% marginalized probability bound of ln < −6.2, corresponding to a 95% marginalized probability lower bound on the Brans–Dicke parameter ! > 120.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QB Astronomy
Depositing User: SRO Admin
Date Deposited: 03 Apr 2007
Last Modified: 07 Mar 2017 13:17
URI: http://sro.sussex.ac.uk/id/eprint/1132
Google Scholar:27 Citations

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