Age constraints on the Agegraphic Dark Energy Model

2007/08/09 by Yi Zhang, Hui Li, Zhang, Yi +8 · 2 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Theory (hep-th) #Scientific Research and Discoveries #Stellar, planetary, and galactic studies #astro-ph #gr-qc #hep-th

paper · pdf · doi:10.48550/arxiv.0708.1214

Revtex, 11 pages with 6 figures

arxiv created 2007/08/09 · openalex publication_date 2007/08/09 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We investigate the age constraint on the agegraphic dark energy model by using two old galaxies (LBDS 53W091 and LBDS 53W069) and the old high redshift quasar APM 08279+5255. We find that the agegraphic dark energy model can easily accommodate LBDS 53W091 and LBDS 53W069. To accommodate APM 08279+5255, one can take the reduced Hubble parameter as large as h=0.64, when the fraction matter energy density Ω_m0≈ 0.22.

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• Alleviation of cosmic age problem in interacting dark energy model
• Holography, UV/IR Relation, Causal Entropy Bound, and Dark Energy

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