Browse by author
Lookup NU author(s): Dr Niko Šarčević
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2025 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.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 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.
Author(s): Alarcon A, Aldoroty L, Beltz-Mohrmann G, Bera A, Blazek J, Bogart J, Braeunlich G, Broughton A, Cao K, Chiang J, Chisari NE, Desai V, Fang Y, Galbany L, Hearin A, Heitmann K, Hirata C, Hounsell R, Jain B, Jarvis M, Jencson J, Kannawadi A, Kasliwal MK, Kessler R, Kiessling A, Knop R, Kovacs E, Laher R, Laliotis K, Lin C, Lopes I, Macbeth E, Mahabal A, Mandelbaum R, Masiero J, Mau S, Meehan C, Meyers J, Moraes B, Paladini R, Pearl A, Malagon AP, Rose B, Rubin D, Rusholme B, Santos A, Sarcevic N, Scolnic D, Singhal J, Troxel MA, Van Alfen N, Van Dyke S, Walter CW, Wu T, Yamamoto M, Yan L, Zhang T
Publication type: Article
Publication status: Published
Journal: Monthly Notices of the Royal Astronomical Society
Year: 2025
Volume: 544
Issue: 4
Pages: 3799-3823
Print publication date: 01/12/2025
Online publication date: 23/10/2025
Acceptance date: 16/10/2025
Date deposited: 16/12/2025
ISSN (print): 0035-8711
ISSN (electronic): 1365-2966
Publisher: Oxford University Press
URL: https://doi.org/10.1093/mnras/staf1833
DOI: 10.1093/mnras/staf1833
Data Access Statement: The data underlying this article are available through the NASA/IPAC Infrared Science Archive (IRSA) at https://irsa.ipac.caltech.edu/data/theory/openuniverse2024/overview.html.23 The transient models are also available through Zenodo at https://zenodo.org/records/14749318.
Altmetrics provided by Altmetric
