activity
20122026
most citedHACC: Simulating Sky Surveys on State-of-the-Art Supercomputing Architectures

231 citations · 1.2k across the 38 of their papers we have counts for

collaborators

39 papers

astro-ph.CO2026

Measuring the Clustering of tSZ-Selected Galaxy Clusters with SPT-3G

E. S. Martsen, D. Anbajagane, L. E. Bleem +96

We present a measurement of the spatial clustering of galaxy clusters selected via the thermal Sunyaev-Zel'dovich (tSZ) signal. Using a cluster catalog derived from five years of S…

astro-ph.CO2026

Optimization of Weak Lensing Lightcone Simulations for Higher-Order Statistics in the LSST era

J. Mena-Fernández, C. Doux, J. Harnois-Déraps +9

We present a framework for generating lightcone simulations tailored to the analysis of Stage-IV cosmic shear data using Higher-Order Statistics (HOS). We revisit key design choice…

astro-ph.GA2026★ 1 cited

Emulator-Based Inference of Cosmological Subgrid Models

Nesar Ramachandra, Nicholas Frontiere, Michael Buehlmann +4

The formation of structure in the Universe at large scales is dominated by gravity, with baryonic physics becoming significant at scales. To capture the impact of b…

astro-ph.CO2025★ 1 cited

Modeling Galaxy Formation in Cosmological Simulations with CRK-HACC

Nicholas Frontiere, J. D. Emberson, Michael Buehlmann +4

Self-consistently modeling baryonic effects in survey-scale cosmological simulations has become increasingly important as the diversity, precision, and statistical reach of modern…

cs.DC2025

Cosmological Hydrodynamics at Exascale: A Trillion-Particle Leap in Capability

Nicholas Frontiere, J. D. Emberson, Michael Buehlmann +10

Resolving the most fundamental questions in cosmology requires simulations that match the scale, fidelity, and physical complexity demanded by next-generation sky surveys. To achie…

astro-ph.CO2025

Illuminating the Physics of Dark Energy with the Discovery Simulations

Gillian D. Beltz-Mohrmann, Adrian Pope, Alex Alarcon +10

In this paper, we present the Discovery simulations: a new pair of high-resolution N-body simulations motivated by the DESI Y1 BAO cosmological constraints on dark energy. The Disc…