Supernovae constraints on models of dark energy reexamined

• Type: Article in International Scientific Journal
• Date: 2005

Authors

bento, mc (Author) Other; bertolami, o (Author) Other; santos, nmc (Author) Other; sen, aa (Author) Other

Journal

Title: Physical Review D - Particles, Fields, Gravitation and Cosmology

Vol. 71 No. 3

Pages: 1-11

ISSN: 1550-7998

Publisher: American Physical Society

Indexing

ISI Web of Knowledge - 76 Citations

Scopus - 83 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-000-4M8

DOI: 10.1103/physrevd.71.063501

Abstract (EN): We use the Type la Supernova gold sample data of Riess et al in order to constrain three models of dark energy. We study the Cardassian model, the Dvali-Turner gravity modified model, and the generalized Chaplygin gas model of dark energy-dark matter unification. In our best-fit analysis for these three dark energy proposals we consider the flat model and the nonflat model priors. We also discuss the degeneracy of the models with the XCDM model through the computation of the so-called jerk parameter.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11