Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-03-31
Phys.Rev.D73:103521,2006
Astronomy and Astrophysics
Astrophysics
Revtex4, 10 pages, 1 table, 12 figures; version to match the one to be published in Physical Review D
Scientific paper
10.1103/PhysRevD.73.103521
We study the constraints that spatial topology may place on the parameters of models that account for the accelerated expansion of the universe via infrared modifications to general relativity, namely the Dvali-Gabadadze-Porrati braneworld model as well as the Dvali-Turner and Cardassian models. By considering the Poincar\'e dodecahedral space as the circles-in-the-sky observable spatial topology, we examine the constraints that can be placed on the parameters of each model using type Ia supernovae data together with the baryon acoustic peak in the large scale correlation function of the Sloan Digital Sky Survey of luminous red galaxies and the Cosmic Microwave Background Radiation shift parameter data. We show that knowledge of spatial topology does provide relevant constraints, particularly on the curvature parameter, for all models.
Bento Maria Conceição
Bertolami Orfeu
Reboucas Marcelo J.
Santos M. . N. C.
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