78 citations · 196 across the 9 of their papers we have counts for
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Weighted density fields as improved probes of modified gravity models
Claudio Llinares, Nuala McCullagh
When it comes to searches for extensions to general relativity, large efforts are being dedicated to accurate predictions for the power spectrum of density perturbations. While thi…
Density-dependent clustering: I. Pulling back the curtains on motions of the BAO peak
Mark C. Neyrinck, István Szapudi, Nuala McCullagh +3
The most common statistic used to analyze large-scale structure surveys is the correlation function, or power spectrum. Here, we show how `slicing' the correlation function on loca…
Recovering dark-matter clustering from galaxies with Gaussianization
Nuala McCullagh, Mark Neyrinck, Peder Norberg +1
The Gaussianization transform has been proposed as a method to remove the issues of scale-dependent galaxy bias and nonlinearity from galaxy clustering statistics, but these benefi…
Toward Accurate Modeling of the Nonlinear Matter Bispectrum: Standard Perturbation Theory and Transients from Initial Conditions
Nuala McCullagh, Donghui Jeong, Alexander S. Szalay
Accurate modeling of nonlinearities in the galaxy bispectrum, the Fourier transform of the galaxy three-point correlation function, is essential to fully exploit it as a cosmologic…
Nonlinear Behavior of Baryon Acoustic Oscillations in Redshift Space from the Zel'dovich Approximation
Nuala McCullagh, Alexander S. Szalay
Baryon acoustic oscillations (BAO) are a powerful probe of the expansion history of the universe, which can tell us about the nature of dark energy. In order to accurately characte…
Removing BAO-peak Shifts with Local Density Transforms
Nuala McCullagh, Mark C. Neyrinck, István Szapudi +1
Large-scale bulk flows in the Universe distort the initial density field, broadening the baryon-acoustic-oscillation (BAO) feature that was imprinted when baryons were strongly cou…
Nonlinear Behavior of Baryon Acoustic Oscillations from the Zel'dovich Approximation Using a Non-Fourier Perturbation Approach
Nuala McCullagh, Alexander S. Szalay
Baryon acoustic oscillations are an excellent technique to constrain the properties of dark energy in the Universe. In order to accurately characterize the dark energy equation of…