123 citations · 381 across the 14 of their papers we have counts for
14 papers
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…
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…
Modeling the Galaxy Distribution in Clusters using Halo Cores
Danila Korytov, Esteban Rangel, Lindsey Bleem +5
The galaxy distribution in dark matter-dominated halos is expected to approximately trace the details of the underlying dark matter substructure. In this paper we introduce halo `c…
Modeling the Lyman- forest with Eulerian and SPH hydrodynamical methods
Solène Chabanier, J. D. Emberson, Zarija Lukić +6
We compare two state-of-the-art numerical codes to study the overall accuracy in modeling the intergalactic medium and reproducing Lyman- forest observables for DESI and high-re…
Farpoint: A High-Resolution Cosmology Simulation at the Gigaparsec Scale
Nicholas Frontiere, Katrin Heitmann, Esteban Rangel +7
In this paper we introduce the Farpoint simulation, the latest member of the Hardware/Hybrid Accelerated Cosmology Code (HACC) gravity-only simulation family. The domain covers a v…
The Last Journey. II. SMACC -- Subhalo Mass-loss Analysis using Core Catalogs
Imran Sultan, Nicholas Frontiere, Salman Habib +4
This paper introduces SMACC -- Subhalo Mass-loss Analysis using Core Catalogs. SMACC adds a mass model to substructure merger trees based on halo "core tracking." Our approach avoi…
Building Halo Merger Trees from the Q Continuum Simulation
Esteban Rangel, Nicholas Frontiere, Salman Habib +4
Cosmological N-body simulations rank among the most computationally intensive efforts today. A key challenge is the analysis of structure, substructure, and the merger history for…
The Last Journey. I. An Extreme-Scale Simulation on the Mira Supercomputer
Katrin Heitmann, Nicholas Frontiere, Esteban Rangel +10
The Last Journey is a large-volume, gravity-only, cosmological N-body simulation evolving more than 1.24 trillion particles in a periodic box with a side-length of 5.025Gpc. It was…
CosmoDC2: A Synthetic Sky Catalog for Dark Energy Science with LSST
Danila Korytov, Andrew Hearin, Eve Kovacs +27
This paper introduces cosmoDC2, a large synthetic galaxy catalog designed to support precision dark energy science with the Large Synoptic Survey Telescope (LSST). CosmoDC2 is the…
The Outer Rim Simulation: A Path to Many-Core Supercomputers
Katrin Heitmann, Hal Finkel, Adrian Pope +10
We describe the Outer Rim cosmological simulation, one of the largest high-resolution N-body simulations performed to date, aimed at promoting science to be carried out with large-…
HACC Cosmological Simulations: First Data Release
Katrin Heitmann, Thomas D. Uram, Hal Finkel +10
We describe the first major public data release from cosmological simulations carried out with Argonne's HACC code. This initial release covers a range of datasets from large gravi…
The importance of secondary halos for strong lensing in massive galaxy clusters across redshift
Nan Li, Michael D. Gladders, Katrin Heitmann +6
Cosmological cluster-scale strong gravitational lensing probes the mass distribution of the dense cores of massive dark matter halos and the structures along the line of sight from…
PICS: Simulations of Strong Gravitational Lensing in Galaxy Clusters
Nan Li, Michael D. Gladders, Esteban M. Rangel +5
Gravitational lensing has become one of the most powerful tools available for investigating the 'dark side' of the universe. Cosmological strong gravitational lensing, in particula…
Efficient Construction of Mock Catalogs for Baryon Acoustic Oscillation Surveys
Tomomi Sunayama, Nikhil Padmanabhan, Katrin Heitmann +2
Precision measurements of the large scale structure of the Universe require large numbers of high fidelity mock catalogs to accurately assess, and account for, the presence of syst…