27 citations · 52 across the 17 of their papers we have counts for
18 papers
FLARE MCMC: Fidelity-based Layer-Adaptive REcursive proposals for MCMC
Harini Venkatesan, Christian Shelton, Ming-Feng Ho +2
Markov chain Monte Carlo (MCMC) requires only the ability to evaluate the likelihood, making it a common technique for inference in complex models. However, it can have a slow mixi…
LATIS Data Release: Spectra of Galaxies, Redshifts, and Intergalactic Medium Tomography Maps
Andrew B. Newman, Gwen C. Rudie, Guillermo A. Blanc +8
We present the data release of the Ly Tomography IMACS Survey (LATIS), one of the largest optical spectroscopic surveys of faint high-redshift galaxies. The survey provides 7408…
LATIS: Galaxy-Environment Relations at Cosmic Noon and the Role of Sample Selection
Nima Chartab, Andrew B. Newman, Gwen C. Rudie +6
We investigate the environmental dependence of galaxy properties at using the Ly Tomography IMACS Survey (LATIS), which provides high-resolution three-dimensional map…
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…
Exploring the impact of AGN feedback model variations on the Lyman- Forest Flux Power Spectrum
Megan Pirecki, Megan Taylor Tillman, Blakesley Burkhart +2
We study the effects of varying different Active Galactic Nuclei (AGN) feedback parameters on the Lyman- (Ly) forest 1D transmitted flux power spectrum (P1D). We use the Cosm…
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…
LATIS: Comparing Galaxy and IGM Tomography Maps as Tracers of Large-scale Structure and Protoclusters at
Andrew B. Newman, Nima Chartab, Mahdi Qezlou +11
We investigate the consistency of intergalactic medium (IGM) tomography and galaxy surveys as tracers of the cosmic web and protoclusters at . We use maps from the Ly$α…
LATIS: A Sample of IGM-selected Protoclusters and Protogroups at
Andrew B. Newman, Mahdi Qezlou, Gwen C. Rudie +11
The Ly Tomography IMACS Survey (LATIS) has produced large 3D maps of the intergalactic medium (IGM), providing a new window on the cosmic web at . A key advantage of L…
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…
Hints of an Anomalous Lens Population towards the Galactic Bulge
Scott E. Perkins, Peter McGill, William A. Dawson +4
The dark and dynamic parts of the Galaxy, including the bulk shape and movement of the Galactic Bulge and characteristics of dark compact object populations, such as a hypothetical…
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…
Investigating the mixing between two black hole populations in LIGO-Virgo-KAGRA GWTC-3
Ming-Feng Ho, Scott Ellis Perkins, Simeon Bird +4
We introduce a population model to analyze the mixing between hypothesised power-law and Gaussian bump black hole populations in the latest gravitational wave cat…
Astrometric Microlensing by Primordial Black Holes with The Roman Space Telescope
James Fardeen, Peter McGill, Scott E. Perkins +5
Primordial Black Holes (PBHs) could explain some fraction of dark matter and shed light on many areas of early-universe physics. Despite over half a century of research interest, a…
Disentangling the Black Hole Mass Spectrum with Photometric Microlensing Surveys
Scott Ellis Perkins, Peter McGill, William Dawson +8
From the formation mechanisms of stars and compact objects to nuclear physics, modern astronomy frequently leverages surveys to understand populations of objects to answer fundamen…
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…