2002/08/22 by C. R. Contaldi, Carlo Contaldi, Contaldi, C. R. +31
Physics and Astronomy · #Astrophysics (astro-ph) #Cosmology and Gravitation Theories #FOS: Physical sciences #Relativity and Gravitational Theory #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0208410
4 pages, To appear in the Proceedings of the XXXVIIth Moriond Astrophysics Meeting "The Cosmological Model"
openalex publication_date 2002/08/22 · arxiv created 2002/09/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We derive cosmological parameters from the CBI measurements of the Cosmic Microwave Background (CMB) angular power spectrum. Our results provide an independent confirmation of the standard Ω\rm tot=1 ΛCDM model within the adiabatic, inflationary paradigm. Above ℓ=2000 the observations show evidence of power in excess of that expected in the standard models. We use hydrodynamical simulations to show how Sunyaev-Zeldovich Effect (SZE) may account for the excess power for models with fluctuation amplitude σ8∼ 1 which is in the high end of the range allowed by the primary CMB observations.