Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2009-04-06
JCAP 0906:036,2009
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
14 pages, 4 figures, 1 table, New References Added, Accepted for Publication in JCAP
Scientific paper
10.1088/1475-7516/2009/06/036
The holographic principle of quantum gravity theory has been applied to the dark energy (DE) problem, and so far three holographic DE models have been proposed: the original holographic dark energy (HDE) model, the agegraphic dark energy (ADE) model, and the holographic Ricci dark energy (RDE) model. In this work, we perform the best-fit analysis on these three models, by using the latest observational data including the Union+CFA3 sample of 397 Type Ia supernovae (SNIa), the shift parameter of the cosmic microwave background (CMB) given by the five-year Wilkinson Microwave Anisotropy Probe (WMAP5) observations, and the baryon acoustic oscillation (BAO) measurement from the Sloan Digital Sky Survey (SDSS). The analysis shows that for HDE, $\chi_{min}^{2}=465.912$; for RDE, $\chi_{min}^{2}=483.130$; for ADE, $\chi_{min}^{2}=481.694$. Among these models, HDE model can give the smallest $\chi^2_{min}$. Besides, we also use the Bayesian evidence (BE) as a model selection criterion to make a comparison. It is found that for HDE, ADE, and RDE, $\Delta \ln \mathrm{BE}= -0.86$, -5.17, and -8.14, respectively. So, it seems that the HDE model is more favored by the observational data.
Li Miao
Li Xiao-Dong
Wang Shuang
Zhang Xin
No associations
LandOfFree
Holographic dark energy models: A comparison from the latest observational data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Holographic dark energy models: A comparison from the latest observational data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Holographic dark energy models: A comparison from the latest observational data will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-133354