Analysis of Two Quintessence Models with Type Ia Supernova Data

2001/06/30 by M. Pavlov, C. Rubano, M. V. Sazhin +2 · 2 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Gamma-ray bursts and supernovae #Pulsars and Gravitational Waves Research #astro-ph

paper · pdf · doi:10.1086/338114

published as Astrophys.J. 566 (2002) 619-622 · minor changes - 9 pages - 8 figures

arxiv created 2001/09/05 · openalex publication_date 2002/02/20 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31

Abstract

The Type Ia supernovae data are used to analyze two general exact solutions for quintessence models. The best-fit values for Ω m 0 are smaller than in the Λ-term model, but still acceptable. With present-day data, it is not possible to discriminate among the various situations.

Citations

• Measurements of Ω and Λ from 42 High‐Redshift Supernovae
• Classification of scalar field potentials with cosmological scaling solutions
• An analysis of cosmological perturbations in hydrodynamical and field representations
• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Cosmological consequences of a rolling homogeneous scalar field
• The Case for a Positive Cosmological Lambda-term

Cited by

• Two viable quintessence models of the Universe: Confrontation of theoretical predictions with observational data
• Halting eternal acceleration with an effective negative cosmological constant