21 citations · 65 across the 9 of their papers we have counts for
9 papers
Recovering Subtle Cosmological Information with the Zel'dovich-inspired Transform
Yun Wang, Hao-Ran Yu, Yu Yu +1
Extracting cosmological information from nonlinear and non-Gaussian large-scale structure remains a major challenge. We introduce the Zel'dovich-inspired (ZI) transform, a simple o…
Precision calculation of the EFT likelihood with primordial non-Gaussianities
Ji-Yuan Ke, Yun Wang, Ping He
We perform a precision calculation of the effective field theory (EFT) conditional likelihood for large-scale structure (LSS) using the saddle-point expansion method in the presenc…
Calculating the EFT likelihood via saddle-point expansion
Ji-Yuan Ke, Yun Wang, Ping He
In this paper, we extend the functional approach for calculating the EFT likelihood by applying the saddle-point expansion. We demonstrate that, after suitable reformulation, the l…
Capturing primordial non-Gaussian signatures in the late Universe by multi-scale extrema of the cosmic log-density field
Yun Wang, Ping He
We construct two new summary statistics, the scale-dependent peak height function (scale-PKHF) and the scale-dependent valley depth function (scale-VLYDF) of matter density, and fo…
Turbulence, Thermal Pressure, and Their Dynamical Effects on Cosmic Baryonic Fluid
Yun Wang, Ping He
We employ the IllustrisTNG simulation data to investigate the turbulent and thermal motions of the cosmic baryonic fluid. With continuous wavelet transform techniques, we define th…
Turbulence revealed by wavelet transform: power spectrum and intermittency for the velocity field of the cosmic baryonic fluid
Yun Wang, Ping He
We use continuous wavelet transform techniques to construct the global and environment-dependent wavelet statistics, such as energy spectrum and kurtosis, to study the fluctuation…
How do baryonic effects on the cosmic matter distribution vary with scale and local density environment?
Yun Wang, Ping He
In this study, we investigate how the baryonic effects vary with scale and local density environment mainly by utilizing a novel statistic, the environment-dependent wavelet power…
Comparisons between fast algorithms for the continuous wavelet transform and applications in cosmology: the 1D case
Yun Wang, Ping He
The continuous wavelet transform (CWT) is very useful for processing signals with intricate and irregular structures in astrophysics and cosmology. It is crucial to propose precise…
Continuous wavelet analysis of matter clustering using the Gaussian-derived wavelet
Yun Wang, Hua-Yu Yang, Ping He
Continuous wavelet analysis has been increasingly employed in various fields of science and engineering due to its remarkable ability to maintain optimal resolution in both space a…