Artículo
Quintessence dissipative superattractor cosmology
Fecha de publicación:
04/2001
Editorial:
American Physical Society
Revista:
Physical Review D: Particles, Fields, Gravitation and Cosmology
ISSN:
1550-7998
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
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 $alpha=1.71pm 0.29$ for the power-law exponent. We calculate for this regime the evolution of density and entropy perturbations.
Palabras clave:
Dark Matter
,
Power-Law Expansion
,
Supernovae Luminosity Observations
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IFIBA)
Articulos de INST.DE FISICA DE BUENOS AIRES
Articulos de INST.DE FISICA DE BUENOS AIRES
Citación
Chimento, Luis Pascual; Jakubi, Alejandro S.; Zuccala, Norberto A.; Quintessence dissipative superattractor cosmology; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; D63; 4-2001; 1035081-10350810
Compartir
Altmétricas