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Cold Dark Matter Isocurvature Perturbations: Cosmological Constraints and Applications
Hong Li, Jie Liu, Jun-Qing Xia +1
In this paper we present the constraints on cold dark matter (CDM) isocurvature contributions to the cosmological perturbations. By employing Markov Chain Monte Carlo method (MCMC)…
Constraining Primordial Non-Gaussianity with High-Redshift Probes
Jun-Qing Xia, Anna Bonaldi, Carlo Baccigalupi +4
We present an analysis of the constraints on the amplitude of primordial non-Gaussianity of local type described by the dimensionless parameter . These constraints are…
Constraints on Dark Energy Parameters from Correlations of CMB with LSS
Hong Li, Jun-Qing Xia
In this paper, we combine the the latest observational data, including the WMAP five-year data (WMAP5), the baryon acoustic oscillations (BAO) and type Ia supernovae (SN) "union" c…
Primordial Non-Gaussianity and the NRAO VLA Sky Survey
Jun-Qing Xia, Matteo Viel, Carlo Baccigalupi +3
The NRAO VLA Sky Survey (NVSS) is the only dataset that allows an accurate determination of the auto-correlation function (ACF) on angular scales of several degrees for Active Gala…