156 citations · 551 across the 19 of their papers we have counts for
19 papers
A Gigaparsec-Scale Hydrodynamic Volume Reconstructed with Deep Learning
Cooper Jacobus, Roger de Belsunce, Solene Chabanier +4
The next generation of cosmological spectroscopic sky surveys will probe the distribution of matter across several Gigaparsecs (Gpc) or many billion light-years. In order to levera…
Advances in ArborX to support exascale applications
Andrey Prokopenko, Daniel Arndt, Damien Lebrun-Grandié +4
ArborX is a performance portable geometric search library developed as part of the Exascale Computing Project (ECP). In this paper, we explore a collaboration between ArborX and a…
The picasso gas model: Painting intracluster gas on gravity-only simulations
F. Kéruzoré, L. E. Bleem, N. Frontiere +5
We introduce picasso, a model designed to predict thermodynamic properties of the intracluster medium based on the properties of halos in gravity-only simulations. The predictions…
Optimization and Quality Assessment of Baryon Pasting for Intracluster Gas using the Borg Cube Simulation
F. Kéruzoré, L. E. Bleem, M. Buehlmann +5
Synthetic datasets generated from large-volume gravity-only simulations are an important tool in the calibration of cosmological analyses. Their creation often requires accurate in…
Numerical Discreteness Errors in Multi-Species Cosmological N-body Simulations
Xin Liu, J. D. Emberson, Michael Buehlmann +2
We present a detailed analysis of numerical discreteness errors in two-species, gravity-only, cosmological simulations using the density power spectrum as a diagnostic probe. In a…
Improving initialization and evolution accuracy of cosmological neutrino simulations
James M. Sullivan, J. D. Emberson, Salman Habib +1
Neutrino mass constraints are a primary focus of current and future large-scale structure (LSS) surveys. Non-linear LSS models rely heavily on cosmological simulations -- the impac…
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…
Simulating Hydrodynamics in Cosmology with CRK-HACC
Nicholas Frontiere, J. D. Emberson, Michael Buehlmann +4
We introduce CRK-HACC, an extension of the Hardware/Hybrid Accelerated Cosmology Code (HACC), to resolve gas hydrodynamics in large-scale structure formation simulations of the uni…
Measuring the evolution of intergalactic gas from z=0 to 5 using the kinematic Sunyaev-Zel'dovich effect
Jonas Chaves-Montero, Carlos Hernandez-Monteagudo, Raul E. Angulo +1
A complete census of baryons in the late universe is a long-standing challenge due to the intermediate temperate and rarefied character of the majority of cosmic gas. To gain insig…
On the road to percent accuracy III: non-linear reaction of the matter power spectrum to massive neutrinos
Matteo Cataneo, J. D. Emberson, Derek Inman +2
We analytically model the non-linear effects induced by massive neutrinos on the total matter power spectrum using the halo model reaction framework of Cataneo et al. 2019. In this…
The Borg Cube Simulation: Cosmological Hydrodynamics with CRK-SPH
J. D. Emberson, Nicholas Frontiere, Salman Habib +4
A challenging requirement posed by next-generation observations is a firm theoretical grasp of the impact of baryons on structure formation. Cosmological hydrodynamic simulations m…
Cosmological neutrino simulations at extreme scale
J. D. Emberson, Hao-Ran Yu, Derek Inman +8
Constraining neutrino mass remains an elusive challenge in modern physics. Precision measurements are expected from several upcoming cosmological probes of large-scale structure. A…
Measurement of the Cold Dark Matter-Neutrino Dipole in the TianNu Simulation
Derek Inman, Hao-Ran Yu, Hong-Ming Zhu +6
Measurements of neutrino mass in cosmological observations rely on two point statistics that are hindered by significant degeneracies with the optical depth and galaxy bias. The re…
Differential Neutrino Condensation onto Cosmic Structure
Hao-Ran Yu, J. D. Emberson, Derek Inman +12
Astrophysical techniques have pioneered the discovery of neutrino mass properties. Current cosmological observations give an upper bound on neutrino masses by attempting to disenta…
Evolution of Low Mass Galactic Subhalos and Dependence on Concentration
J. D. Emberson, Takeshi Kobayashi, Marcelo A. Alvarez
We carry out a detailed study of the orbital dynamics and structural evolution of over 6000 subhalos in the Via Lactea II simulation, from infall to present. By analyzing subhalos…
Precision reconstruction of the dark matter-neutrino relative velocity from N-body simulations
Derek Inman, J. D. Emberson, Ue-Li Pen +3
Discovering the mass of neutrinos is a principle goal in high energy physics and cosmology. In addition to cosmological measurements based on two-point statistics, the neutrino mas…
Interpolation in waveform space: enhancing the accuracy of gravitational waveform families using numerical relativity
Kipp Cannon, J. D. Emberson, Chad Hanna +2
Matched-filtering for the identification of compact object mergers in gravitational-wave antenna data involves the comparison of the data stream to a bank of template gravitational…
High Performance P3M N-body code: CUBEP3M
Joachim Harnois-Deraps, Ue-Li Pen, Ilian T. Iliev +3
This paper presents CUBEP3M, a publicly-available high performance cosmological N-body code and describes many utilities and extensions that have been added to the standard package…
The Opacity of the Intergalactic Medium During Reionization: Resolving Small-Scale Structure
J. D. Emberson, Rajat M. Thomas, Marcelo A. Alvarez
Early in the reionization process, the intergalactic medium (IGM) would have been quite inhomogeneous on small scales, due to the low Jeans mass in the neutral IGM and the hierarch…