2004/03/31 by Qing-Guo Huang, Yungui Gong · 3 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #astro-ph #gr-qc #hep-ph #hep-th
paper · pdf · doi:10.1088/1475-7516/2004/08/006
published as JCAP 0408 (2004) 006 · 7 pages, 2 figures, harvmac; likelihood of $w^0_Λ$ added; v3: a reference corrected; Significant additions on setting d as a free parameter and some references added
arxiv created 2004/06/14 · openalex publication_date 2004/08/10 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
In this paper, we use the type Ia supernova data to constrain the model of holographic dark energy. For d = 1, the best fit result is Ω m 0 = 0.25, the equation of the state of the holographic dark energy w Λ 0 = −0.91 and the transition between the decelerating expansion and the accelerating expansion happened when the cosmological red-shift was z T = 0.72. If we set d as a free parameter, the best fit results are d = 0.21, Ω m 0 = 0.46, w Λ 0 = −2.67, which sounds like a phantom today, and the transition red-shift is z T = 0.28.