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Interacting dark energy and dark matter: Observational constraints from cosmological parameters

2006/07/31 by Bin Wang, Jiadong Zang, Chi-Yong Lin +3 · 10 citations
Mathematics · Physics and Astronomy · #Astrophysics #Cosmology #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark energy #Dark fluid #Dark matter #Galaxies: Formation, Evolution, Phenomena #Hot dark matter #Lambda-CDM model #Mathematics #Mixed dark matter #Observational study #Physics #Scalar field dark matter #Statistics #Warm dark matter #astro-ph #gr-qc #hep-ph

paper · pdf · doi:10.1016/j.nuclphysb.2007.04.037

published as Nucl.Phys.B778:69-84,2007 · 20 pages, 9 figures

arxiv created 2007/05/02 · openalex publication_date 2007/05/15 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Several observational constraints are imposed on the interacting holographic model of dark energy and dark matter. First we use the age parameter today, as given by the WMAP results. Subsequently, we explained the reason why it is possible, as recently observed, for an old quasar to be observed in early stages of the Universe. We discuss this question in terms of the evolution of the age parameter as well as in terms of the structure formation. Finally, we give a detailed discussion of the constraints implied by the observed CMB low ℓ suppression. As a result, the interacting holographic model has been proved to be robust and with reasonable bounds predicts a non-vanishing interaction of dark energy and dark matter.

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