# Quintessence dissipative superattractor cosmology

Authors
Type
Published Article
Publication Date
Apr 17, 2001
Submission Date
Jan 30, 2001
Identifiers
DOI: 10.1103/PhysRevD.63.103508
arXiv ID: astro-ph/0101549
Source
arXiv
We investigate the simplest quintessence dissipative dark matter attractor cosmology characterized by a constant quintessence baryotropic index and a power--law expansion. We show a class of accelerated coincidence--solving attractor solutions converging to this asymptotic behavior. Despite its simplicity, such a superattractor'' regime provides a model of the recent universe that also exhibits an excellent fit to supernovae luminosity observations and no age conflict. Our best fit gives $\alpha=1.71\pm 0.29$ for the power-law exponent. We calculate for this regime the evolution of density and entropy perturbations.