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- Chinese Academy of SciencesCN47 papers
- Institute of Theoretical PhysicsCN26 papers
- Peking UniversityCN23 papers
- Tsinghua UniversityCN17 papers
- Beijing Radiation CenterCN16 papers
- Institute of High Energy PhysicsCN13 papers
- National Astronomical ObservatoriesCN13 papers
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- Centre National de la Recherche ScientifiqueFR9 papers
- China Center of Advanced Science and TechnologyCN8 papers
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- Academy of Mathematics and Systems ScienceCN6 papers
5 papers · 2 filters
Constraints on the generalized Chaplygin gas model including gamma-ray bursts via a Markov Chain Monte Carlo approach
Nan Liang, Lixin Xu, Zong-Hong Zhu
We investigate observational constraints on the generalized Chaplygin gas (GCG) model including the gamma-ray bursts (GRBs) at high redshift obtained directly from the Union2 type…
Current cosmological constraints on the curvature, dark energy and modified gravity
Yungui Gong, Xiao-ming Zhu, Zong-Hong Zhu
We apply the Union2 compilation of 557 supernova Ia data, the baryon acoustic oscillation measurement of distance, the cosmic microwave background radiation data from the seven yea…
Increasing the Fisher Information Content in the Matter Power Spectrum by Non-linear Wavelet Weiner Filtering
Tong-Jie Zhang, Hao-Ran Yu, Joachim Harnois-Déraps +2
We develop a purely mathematical tool to recover some of the information lost in the non-linear collapse of large-scale structure. From a set of 141 simulations of dark matter dens…
Power of Observational Hubble Parameter Data: a Figure of Merit Exploration
Cong Ma, Tong-Jie Zhang
We use simulated Hubble parameter data in the redshift range 0 \leq z \leq 2 to explore the role and power of observational H(z) data in constraining cosmological parameters of the…
Cosmological Constraints on the Undulant Universe
Tian Lan, Yan Gong, Hao-Yi Wan +1
We use the redshift Hubble parameter data derived from relative galaxy ages, distant type Ia supernovae (SNe Ia), the Baryonic Acoustic Oscillation (BAO) peak, and the Cosmi…