Supernovae constraints on dark energy and modified gravity models

• Tipo: Artigo em Revista Científica Internacional
• Data: 2006

Autores

Bento, MC (Autor) Outra; Bertolami, O (Autor) Outra; Santos, NMC (Autor) Outra; Sen, AA (Autor) Outra

Revista

Título: Journal of Physics: Conference Series

Vol. 33

Páginas: 197-202

ISSN: 1742-6588

Editora: Institute of Physics Publishing

Indexação

ISI Web of Knowledge

Scopus - 6 Citações

Outras Informações

ID Authenticus: P-007-FC2

DOI: 10.1088/1742-6596/33/1/018

Abstract (EN): We use the Type Ia Supernova gold sample to constrain the parameters of dark energy models namelly the Cardassian, Dvali-Turner (DT) and generalized Chaplygin gas (GCG) models. In our best fit analysis for these dark energy proposals we consider flat and the non-flat priors. For all models, we find that relaxing the flatness condition implies that data favors a positive curvature; moreover, the GCG model is nearly flat, as required by Cosmic Microwave Background (CMB) observations. © 2006 IOP Publishing Ltd.

Idioma: Inglês

Tipo (Avaliação Docente): Científica