2004/08/01 by N. Pires, NILZA PIRES, M. A. S. Nobre +3
Physics and Astronomy · #Advanced Mathematical Theories and Applications #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #astro-ph
paper · pdf · doi:10.1142/s0218271804005638
published as Int.J.Mod.Phys. D13 (2004) 1425-1429 · 10 pages, 1 figure, 2 tables, accepted to IJMPD
openalex publication_date 2004/08/01 · arxiv created 2004/11/24 · arxiv updated 2009/12/01 · openalex created_date 2017/03/16 · openalex updated_date 2026/07/28
We discuss the physical effects of some accelerated world models on the width of the last scattering surface (LSS) of the cosmic microwave background radiation (CMBR). The models considered in our analysis are X-matter (XCDM) and a Chaplygin type gas. The redshift of the LSS does not depend on the kind of dark energy (if XCDM of Chaplygin). Further, for a Chaplygin gas, the width of the LSS is also only weakly dependent on the kind of scenario (if we have dark energy plus cold dark matter or the unified picture).