Dark Energy in Chains

Simple item page
dc.creatorParkinson, David
dc.creatorBassett, Bruce A.
dc.creatorCopeland, Edmund J.
dc.creatorCorasaniti, Pier-Stefano
dc.creatorKunz, Martin
dc.date2004-06-01
dc.date.accessioned2026-07-25T19:21:02Z
dc.descriptionDark energy affects the CMB through its perturbations and affects both CMB and Sn-Ia through its background evolution. Using recent CMB and Sn-Ia data sets, together with the most general parameterization of the dark energy equation of state available, we find that today w < -0.8 (2 sigma). We also find that the value of the normalization of the power spectrum on cluster scales, sigma8, can be used to discriminate between dynamical models of dark energy (Quintessence models) and a cosmological constant model (Lambda CDM).
dc.description4 pages, to be published in the Proceedings of the XXXIX Rencontres de Moriond 'Exploring the Universe'
dc.identifierhttps://arxiv.org/abs/astro-ph/0406018
dc.identifierhttp://arxiv.org/abs/astro-ph/0406018
dc.identifier.urihttps://dspace.dare.co.zw/handle/123456789/63903
dc.subjectAstrophysics
dc.titleDark Energy in Chains
dc.typetext

Files

Collections

Artificial intelligence