OpenUniverse2024: A shared, simulated view of the sky for the next generation of cosmological surveys

Abstract

The OpenUniverse2024 simulation suite is a cross-collaboration effort to produce matched simulated imaging for multiple surveys as they would observe a common simulated sky. Both the simulated data and associated tools used to produce it are intended to uniquely enable a wide range of studies to maximize the science potential of the next generation of cosmological surveys. We have produced simulated imaging for approximately 70 deg${}^2$ of the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) Wide-Fast-Deep survey and the Nancy Grace Roman Space Telescope High-Latitude Wide-Area Survey, as well as overlapping versions of the ELAIS-S1 Deep-Drilling Field for LSST and the High-Latitude Time-Domain Survey for Roman. OpenUniverse2024 includes i) an early version of the updated extragalactic model called Diffsky, which substantially improves the realism of optical and infrared photometry of objects, compared to previous versions of these models; ii) updated transient models that extend through the wavelength range probed by Roman and Rubin; and iii) improved survey, telescope, and instrument realism based on up-to-date survey plans and known properties of the instruments. It is built on a new and updated suite of simulation tools that improves the ease of consistently simulating multiple observatories viewing the same sky. The approximately 400 TB of synthetic survey imaging and simulated universe catalogs are publicly available, and we preview some scientific uses of the simulations.

References in corpus (25)

• Origin of the heavy elements in binary neutron-star mergers from a gravitational wave event
• Observational Constraints on the Nature of the Dark Energy: First Cosmological Results from the ESSENCE Supernova Survey
• Theoretical light curves for deflagration models of Type Ia supernova
• Super-luminous supernovae at redshifts of 2.05 and 3.90
• On the mass and luminosity functions of tidal disruption flares: rate suppression due to black hole event horizons
• SALT3: An Improved Type Ia Supernova Model for Measuring Cosmic Distances
• Fast evolving pair-instability supernova models: evolution, explosion, light curves
• Observational properties of low redshift pair instability supernovae
• Dark Energy Survey Year 3 Results: Optimizing the Lens Sample in Combined Galaxy Clustering and Galaxy-Galaxy Lensing Analysis
• Scientific Synergy Between LSST and Euclid
• An extremely energetic supernova from a very massive star in a dense medium
• Image Subtraction in Fourier Space
• The Hydrogen-Poor Superluminous Supernovae from the Zwicky Transient Facility Phase-I Survey: I. Light Curves and Measurements
• Pair-Instability Supernova Simulations: Progenitor Evolution, Explosion, and Light Curves
• SALT3-NIR: Taking the Open-Source Type Ia Supernova Model to Longer Wavelengths for Next-Generation Cosmological Measurements
• How Well Can We Measure Galaxy Dust Attenuation Curves? The Impact of the Assumed Star-Dust Geometry Model in SED Fitting
• A Joint Roman Space Telescope and Rubin Observatory Synthetic Wide-Field Imaging Survey
• Diffstar: A Fully Parametric Physical Model for Galaxy Assembly History
• Validating Synthetic Galaxy Catalogs for Dark Energy Science in the LSST Era
• Differentiable Predictions for Large Scale Structure with SHAMNet
• Simulating image coaddition with the Nancy Grace Roman Space Telescope: I. Simulation methodology and general results
• Joint survey processing: combined resampling and convolution for galaxy modelling and deblending
• Roman CCS White Paper: Measuring Type Ia Supernovae Discovered in the Roman High Latitude Time Domain Survey
• Roman CCS White Paper: Considerations for Selecting Fields for the Roman High-latitude Time Domain Core Community Survey
• phrosty: A difference imaging pipeline for Roman

Cited by in corpus (8)

• The WEAVE acquisition and guiding software: pattern recognition-based acquisition and multi-fibre guiding
• Diffusion-based Galaxy Simulations for the Roman High Latitude Survey
• Charge diffusion and modulation transfer function in a Nancy Grace Roman Space Telescope detector
• Optimizing the Roman Space Telescope High-Latitude Wide Area Survey for mitigating chromatic PSF effects on shear measurement
• A Non-parametric Method for the Inference of Halo Occupation Distributions
• The contribution of the color space in LSST-like photometry for the selection of extragalactic globular cluster candidates
• pop-cosmos: Star formation over 12 Gyr from generative modelling of a deep infrared-selected galaxy catalogue
• Initial Characterization of Stellar Photometry of Roman images from the OpenUniverse Simulations