A5027997383- Galaxies: Formation, Evolution, Phenomena
- Gamma-ray bursts and supernovae
- Astronomy and Astrophysical Research
- Atmospheric Ozone and Climate
- Scientific Research and Discoveries
- Atmospheric and Environmental Gas Dynamics
- Astrophysics and Cosmic Phenomena
- Medical Imaging Techniques and Applications
- Atomic and Subatomic Physics Research
- Big Data Technologies and Applications
- Lung Cancer Diagnosis and Treatment
- Radio Astronomy Observations and Technology
- Atmospheric chemistry and aerosols
- Stellar, planetary, and galactic studies
- Bladder and Urothelial Cancer Treatments
- Remote Sensing in Agriculture
- Healthcare Systems and Challenges
- Ionosphere and magnetosphere dynamics
- Climate Change and Geoengineering
- Impact of Light on Environment and Health
- Cancer Immunotherapy and Biomarkers
- demographic modeling and climate adaptation
- Cosmology and Gravitation Theories
- Parallel Computing and Optimization Techniques
- Radiomics and Machine Learning in Medical Imaging
University of Michigan–Ann Arbor
2024
Sandia National Laboratories
2023-2024
Argonne National Laboratory
2019-2023
Abstract 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 starting point for second data challenge (DC2) carried out by LSST Dark Energy Science Collaboration (LSST DESC). The based on trillion-particle, (4.225 Gpc) 3 box cosmological N -body simulation, Outer Rim run. It covers 440 deg 2 of sky area redshift z = and matches expected number densities from...
Abstract We describe the simulated sky survey underlying second data challenge (DC2) carried out in preparation for analysis of Vera C. Rubin Observatory Legacy Survey Space and Time (LSST) by LSST Dark Energy Science Collaboration (LSST DESC). Significant connections across multiple science domains will be a hallmark LSST; DC2 program represents unique modeling effort that stresses this interconnectivity way has not been attempted before. This encompasses full end-to-end approach: starting...
Abstract. A new set of standalone parameterizations is presented for simulating the injection, evolution, and radiative forcing by stratospheric volcanic aerosols against an idealized Held-Suarez-Williamson atmospheric background in Energy Exascale Earth System Model version 2. Sulfur dioxide (SO2) ash are injected into atmosphere with a specified profile vertical, proceed to follow simple exponential decay. The SO2 decay modeled as perfect conversion long-living sulfate aerosol which...
We describe the first major public data release from cosmological simulations carried out with Argonne's HACC code. This initial covers a range of datasets large gravity-only simulations. The products include halo information for multiple redshifts, down-sampled particles, and lightcone outputs. provide two very LCDM as well beyond-LCDM spanning eleven w0-wa cosmologies. Our platform uses Petrel, research service, located at Argonne Leadership Computing Facility. Petrel offers fast transfer...
Abstract. A new set of standalone parameterizations is presented for simulating the injection, evolution, and radiative forcing by stratospheric volcanic aerosols against an idealized Held–Suarez–Williamson (HSW) atmospheric background in Energy Exascale Earth System Model version 2 (E3SMv2). In this model configuration (HSW with enabled volcanism, HSW-V), sulfur dioxide (SO2) ash are injected into atmosphere a specified profile vertical, they proceed to follow simple exponential decay. The...
In preparation for cosmological analyses of the Vera C. Rubin Observatory Legacy Survey Space and Time (LSST), LSST Dark Energy Science Collaboration (LSST DESC) has created a 300 deg$^2$ simulated survey as part an effort called Data Challenge 2 (DC2). The DC2 sky survey, in six optical bands with observations following reference observing cadence, was processed Pipelines (19.0.0). this Note, we describe public data release resulting object catalogs coadded images five years along...
The galaxy distribution in dark matter-dominated halos is expected to approximately trace the details of underlying matter substructure. In this paper we introduce halo `core-tracking' as a way efficiently follow small-scale substructure cosmological simulations and apply technique model observed clusters. method relies on explicitly tracking set particles identified belonging halo's central density core, once has attained certain threshold mass. cores are then followed throughout entire...
The galaxy distribution in dark matter-dominated halos is expected to approximately trace the details of underlying matter substructure. In this paper we introduce halo "core-tracking" as a way efficiently follow small-scale substructure cosmological simulations and apply technique model observed clusters. method relies on explicitly tracking set particles identified belonging halo's central density core, once has attained certain threshold mass. cores are then followed throughout entire...
This document describes the LANTERN (Lightcone generAtion via sNapshoT intERpolatioN) code module, our current approach for generating lightcones from HACC [5] simulation products. In sec. 1, we derive condition which defines all spacetime events that can be seen by an observer at any given time (we parameterize surface of observer's past lightcone). 2, describe how apply this to find approximate lightcone-crossing times objects whose positions and velocities are known only discrete...
This presentation describes the design and implementation of stratospheric aerosol injection (SAI) events in an idealized configuration Department Energy's (DOE) Energy Exascale Earth System Model (E3SMv2). These aerosols are implemented as "tracers" within framework climate model, i.e. dimensionless mixing-ratio quantities which advected with winds by model's transport scheme. The spatio-temporal description injected tracer species, well their chemical interaction evolution, encoded...