activity
20222025
most citedDifferentiating small-scale subhalo distributions in CDM and WDM models using persistent homology

7 citations · 11 across the 5 of their papers we have counts for

collaborators

5 papers

astro-ph.CO2025

Anisotropic Counts-in-Cells in Redshift Space: A New Route to Cosmological Constraints from Galaxy Surveys

Paweł Drozda, Wojciech A. Hellwing, Maciej Bilicki

We introduce a novel extension of the volume-averaged correlation function (VACF) framework by replacing the traditional spherical smoothing kernels with anisotropic, ellipsoidal w…

astro-ph.CO2025

Skewness as a Probe of Gravity: Real and Redshift Space Counts-In-Cells

Paweł Drozda, Wojciech A. Hellwing, Maciej Bilicki

We study the counts-in-cells reduced skewness for dark matter, halo, and galaxy distributions in both real and redshift space, using the ELEPHANT ($\textit{Extended LEnsing P…

gr-qc2023

Iteratively Comparing Gravitational-Wave Observations to the Evolution of Massive Stellar Binaries

Vera Delfavero, Richard O'Shaughnessy, Krzysztof Belczynski +2

Gravitational-wave observations have the capability to strongly differentiate between different assumptions for how binary compact objects form. In this work, we show how to carefu…

astro-ph.CO2022★ 4 cited

Galaxy and halo angular clustering in LCDM and Modified Gravity cosmologies

Paweł Drozda, Wojciech A. Hellwing, Maciej Bilicki

Using a suite of -body simulations we study the angular clustering of galaxies, halos, and dark matter in and Modified Gravity (MG) scenarios. We consider…

astro-ph.IM2022★ 7 cited

Differentiating small-scale subhalo distributions in CDM and WDM models using persistent homology

Jessi Cisewski-Kehe, Brittany Terese Fasy, Wojciech Hellwing +3

The spatial distribution of galaxies at sufficiently small scales will encode information about the identity of the dark matter. We develop a novel description of the halo distribu…