10.4k citations · 44.7k across the 82 of their papers we have counts for
32 papers · 1 filter
Galaxy Clustering in the Mira-Titan Universe I: Emulators for the redshift space galaxy correlation function and galaxy-galaxy lensing
Juliana Kwan, Shun Saito, Alexie Leauthaud +7
We construct accurate emulators for the projected and redshift space galaxy correlation functions and excess surface density as measured by galaxy-galaxy lensing, based on Halo Occ…
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…
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…
DESC DC2 Data Release Note
LSST Dark Energy Science Collaboration, Bela Abolfathi, Robert Armstrong +54
In preparation for cosmological analyses of the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST), the LSST Dark Energy Science Collaboration (LSST DESC) has created…
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…
The Mira-Titan Universe. III. Emulation of the Halo Mass Function
Sebastian Bocquet, Katrin Heitmann, Salman Habib +5
We construct an emulator for the halo mass function over group and cluster mass scales for a range of cosmologies, including the effects of dynamical dark energy and massive neutri…
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…
Effects of Massive Neutrinos and Dynamical Dark Energy on the Cluster Mass Function
Rahul Biswas, Katrin Heitmann, Salman Habib +3
The presence of massive neutrinos affects the growth of large-scale structure in the universe, leaving a potentially observable imprint on the abundance and properties of massive d…
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…
Halo Profiles and the Concentration-Mass Relation for a ΛCDM Universe
Hillary L. Child, Salman Habib, Katrin Heitmann +4
Profiles of dark matter-dominated halos at the group and cluster scales play an important role in modern cosmology. Using results from two very large cosmological -body simulati…
The Mira-Titan Universe II: Matter Power Spectrum Emulation
Earl Lawrence, Katrin Heitmann, Juliana Kwan +7
We introduce a new cosmic emulator for the matter power spectrum covering eight cosmological parameters. Targeted at optical surveys, the emulator provides accurate predictions out…
The Mira-Titan Universe: Precision Predictions for Dark Energy Surveys
Katrin Heitmann, Derek Bingham, Earl Lawrence +8
Ground and space-based sky surveys enable powerful cosmological probes based on measurements of galaxy properties and the distribution of galaxies in the Universe. These probes inc…
Redshift-space distortions in massive neutrino and evolving dark energy cosmologies
Amol Upadhye, Juliana Kwan, Adrian Pope +4
Large-scale structure surveys in the coming years will measure the redshift-space power spectrum to unprecedented accuracy, allowing for powerful new tests of the LambdaCDM picture…
The Q Continuum Simulation: Harnessing the Power of GPU Accelerated Supercomputers
Katrin Heitmann, Nicholas Frontiere, Chris Sewell +6
Modeling large-scale sky survey observations is a key driver for the continuing development of high resolution, large-volume, cosmological simulations. We report the first results…
Cosmic Emulation: Fast Predictions for the Galaxy Power Spectrum
Juliana Kwan, Katrin Heitmann, Salman Habib +4
The halo occupation distribution (HOD) approach has proven to be an effective method for modeling galaxy clustering and bias. In this approach, galaxies of a given type are probabi…
Large-Scale Structure Formation with Massive Neutrinos and Dynamical Dark Energy
Amol Upadhye, Rahul Biswas, Adrian Pope +4
Over the next decade, cosmological measurements of the large-scale structure of the Universe will be sensitive to the combined effects of dynamical dark energy and massive neutrino…
Large Synoptic Survey Telescope: Dark Energy Science Collaboration
LSST Dark Energy Science Collaboration
This white paper describes the LSST Dark Energy Science Collaboration (DESC), whose goal is the study of dark energy and related topics in fundamental physics with data from the La…
GOODS-Herschel: radio-excess signature of hidden AGN activity in distant star-forming galaxies
A. Del Moro, D. M. Alexander, J. R. Mullaney +23
We present here a new spectral energy distribution (SED) fitting approach that we adopt to select radio-excess sources amongst distant star-forming galaxies in the GOODS-Herschel (…
The JCMT Nearby Galaxies Legacy Survey VIII. CO data and the L(CO3-2)-L(FIR) correlation in the SINGS sample
C. D. Wilson, B. E. Warren, F. P. Israel +57
The James Clerk Maxwell Telescope Nearby Galaxies Legacy Survey (NGLS) comprises an HI-selected sample of 155 galaxies spanning all morphological types with distances less than 25…
Querying for heavily obscured AGN via high 9.7 micron optical depths: results from the 12 micron, GOODS, and FLS Spitzer spectroscopic samples
K. M. Dasyra, I. Georgantopoulos, A. Pope +1
To optimally identify candidates of the Compton-thick (CT) active galactic nuclei (AGN) that contribute to the unresolved X-ray background in infrared surveys, a tracer of column d…
GOODS-Herschel A population of 24micron dropout sources at z < 2
Georgios E. Magdis, D. Elbaz, M. Dickinson +25
Using extremely deep PACS 100- and 160um Herschel data from the GOODS-Herschel program, we identify 21 infrared bright galaxies previously missed in the deepest 24um surveys perfor…
Analyzing and Visualizing Cosmological Simulations with ParaView
Jonathan Woodring, Katrin Heitmann, James Ahrens +4
The advent of large cosmological sky surveys - ushering in the era of precision cosmology - has been accompanied by ever larger cosmological simulations. The analysis of these simu…