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Reconstruction of a scalar-tensor theory of gravity in an accelerating universe | B. Boisseau
; G. Esposito-Farese
; D. Polarski
; A.A. Starobinsky
; | Date: |
21 Dec 1999 | Journal: | Phys.Rev.Lett. 85 (2000) 2236 | Subject: | gr-qc astro-ph | Abstract: | The present acceleration of the Universe strongly indicated by recent observational data can be modeled in the scope of a scalar-tensor theory of gravity. We show that it is possible to determine the structure of this theory (the scalar field potential and the functional form of the scalar-gravity coupling) along with the present density of dustlike matter from the following two observable cosmological functions: the luminosity distance and the linear density perturbation in the dustlike matter component as functions of redshift. Explicit results are presented in the first order in the small inverse Brans-Dicke parameter 1/omega. | Source: | arXiv, gr-qc/0001066 | Services: | Forum | Review | PDF | Favorites |
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