Supernovae constraints on dark energy and modified gravity models

• Type: Article in International Scientific Journal
• Date: 2006

Authors

Bento, MC (Author) Other; Bertolami, O (Author) Other; Santos, NMC (Author) Other; Sen, AA (Author) Other

Journal

Title: Journal of Physics: Conference Series

Vol. 33

Pages: 197-202

ISSN: 1742-6588

Publisher: Institute of Physics Publishing

Indexing

ISI Web of Knowledge

Scopus - 6 Citations

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific