https://doi.org/10.1140/epjc/s10052-011-1800-5
Regular Article - Theoretical Physics
Cosmological constraints on the generalized holographic dark energy
1
Department of Physics, Liaoning Normal University, Dalian, 116029, P.R. China
2
School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, 116024, P.R. China
* e-mail: lvjianbo819@163.com
Received:
20
September
2011
Revised:
23
October
2011
Published online:
16
November
2011
We use the Markov Chain Monte Carlo method to investigate global constraints on the generalized holographic (GH) dark energy with flat and non-flat universe from the current observed data: the Union2 dataset of type supernovae Ia (SNIa), high-redshift Gamma-Ray Bursts (GRBs), the observational Hubble data (OHD), the cluster X-ray gas mass fraction, the baryon acoustic oscillation (BAO), and the cosmic microwave background (CMB) data. The most stringent constraints on the GH model parameter are obtained. In addition, it is found that the equation of state for this generalized holographic dark energy can cross over the phantom boundary w de =−1.
© Springer-Verlag / Società Italiana di Fisica, 2011
