27 citations · 52 across the 17 of their papers we have counts for
8 papers · 1 filter
Small-scale Lyman alpha forest cosmology with PRIYA: Constraints from XQ100 and KODIAQ-SQUAD one-dimensional flux power spectra
Ming-Feng Ho, Mahdi Qezlou, Simeon Bird +4
We present a new cosmological analysis of the small-scale Lyman alpha forest 1D flux power spectrum (P1D) using high-resolution quasar spectra from XQ100 and KODIAQ-SQUAD, interpre…
An AI super-resolution field emulator for cosmological hydrodynamics: the Lyman-α forest
Fatemeh Hafezianzadeh, Xiaowen Zhang, Yueying Ni +4
We extend our super-resolution and emulation framework for cosmological dark matter simulations to include hydrodynamics. We present a two-stage deep learning model to emulate high…
Design and optimization of neural networks for multifidelity cosmological emulation
Yanhui Yang, Simeon Bird, Ming-Feng Ho +1
Accurate and efficient simulation-based emulators are essential for interpreting cosmological survey data down to nonlinear scales. Multifidelity emulation techniques reduce simula…
Ten-dimensional neural network emulator for the nonlinear matter power spectrum
Yanhui Yang, Simeon Bird, Ming-Feng Ho +1
We present GokuNEmu, a ten-dimensional neural network emulator for the nonlinear matter power spectrum, designed to support next-generation cosmological analyses. Built on the Goku…
Ten-parameter simulation suite for cosmological emulation beyond CDM
Yanhui Yang, Simeon Bird, Ming-Feng Ho
We present Goku, a suite of cosmological -body simulations, and the corresponding 10-dimensional emulator, GokuEmu, for the nonlinear matter power spectrum. The simulations span…
The Effects of AGN Feedback on the Lyman- Forest Flux Power Spectrum
Megan Taylor Tillman, Blakesley Burkhart, Stephanie Tonnesen +2
We study the effects of AGN feedback on the Lyman- forest 1D flux power spectrum (P1D). Using the Simba cosmological-hydrodynamic simulations, we examine the impact that adding…
Forecast Cosmological Constraints with the 1D Wavelet Scattering Transform and the Lyman- forest
Hurum Maksora Tohfa, Simeon Bird, Ming-Feng Ho +2
We make forecasts for the constraining power of the 1D Wavelet Scattering Transform (WST) when used with a Lyman- forest cosmology survey. Using mock simulations and a Fisher ma…
Cosmological Constraints from the eBOSS Lyman- Forest using the PRIYA Simulations
M. A. Fernandez, Simeon Bird, Ming-Feng Ho
We present new cosmological parameter constraints from the eBOSS Lyman- forest survey. We use a new theoretical model and likelihood based on the PRIYA simulation suite. PRIYA i…