2001/01/31 by Luis P. Chimento, Alejandro S. Jakubi, Norberto A. Zuccala +1 · 1 citation
Mathematics · Physics and Astronomy · #Astrophysics #Attractor #Black Holes and Theoretical Physics #Cosmology #Cosmology and Gravitation Theories #Dark energy #Dissipative system #Galaxies: Formation, Evolution, Phenomena #Mathematical analysis #Mathematical physics #Mathematics #Physics #Quantum mechanics #Quintessence #Theoretical physics #astro-ph #gr-qc
paper · pdf · doi:10.1103/physrevd.63.103508
published as Phys.Rev. D63 (2001) 103508 · 15 pages, Revtex, 2 figures. v3: Minor typos corrected
openalex publication_date 2001/04/16 · arxiv created 2001/04/17 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 \ensuremathα=1.71\ifmmode±\else\textpm\fi0.29 for the power-law exponent. We calculate for this regime the evolution of density and entropy perturbations.