Supernovae Constraints on Dgp Model and Cosmic Topology
Abstract
We study the constraints that the detection of a non-trivial spatial topology may place on the parameters of braneworld models by considering the Dvali-Gabadadze-Porrati (DGP) and the globally homogeneous Poincaré dodecahedral spatial (PDS) topology as a circles-in-the-sky observable topology. To this end we reanalyze the type Ia supernovae constraints on the parameters of the DGP model and show that PDS topology gives rise to strong and complementary constraints on the parameters of the DGP model.
- Publication:
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The Eleventh Marcel Grossmann Meeting On Recent Developments in Theoretical and Experimental General Relativity, Gravitation and Relativistic Field Theories
- Pub Date:
- September 2008
- DOI:
- arXiv:
- arXiv:astro-ph/0702428
- Bibcode:
- 2008mgm..conf.1824R
- Keywords:
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- Astrophysics;
- General Relativity and Quantum Cosmology;
- High Energy Physics - Theory
- E-Print:
- 4 pages, 1 fig. To appear in the Proc. of 11th Marcel Grossmann Meeting on General Relativity. Latex2e, World Scientific proc. style files. v2.: references added