2025MNRAS.544.3799O

Query : 2025MNRAS.544.3799O

2025MNRAS.544.3799O - Mon. Not. R. Astron. Soc., 544, 3799-3823 (2025/December-3)

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

OPENUNIVERSE, THE LSST DARK ENERGY SCIENCE COLLABORATION, THE ROMAN HLIS PROJECT INFRASTRUCTURE, THE ROMAN RAPID PROJECT INFRASTRUCTURE TEAM, THE ROMAN SUPERNOVA COSMOLOGY PROJECT INFRASTRUCTURE TEAM, ALARCON A., ALDOROTY L., BELTZ-MOHRMANN G., BERA A., BLAZEK J., BOGART J., BRAEUNLICH G., BROUGHTON A., CAO K., CHIANG J., CHISARI N.E., DESAI V., FANG Y., GALBANY L., HEARIN A., HEITMANN K., HIRATA C., HOUNSELL R., JAIN B., JARVIS M., JENCSON J., KANNAWADI A., KASLIWAL M.K., 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., PLAZAS MALAGON A., ROSE B., RUBIN D., RUSHOLME B., SANTOS A., SARCEVIC N., SCOLNIC D., SINGHAL J., TROXEL M.A., VAN ALFEN N., VAN DYKE S., WALTER C.W., WU T., YAMAMOTO M., YAN L. and ZHANG T.

Abstract (from CDS):

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.

Abstract Copyright: © The Author(s) 2025. Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): software: simulations - large-scale structure of Universe - transients: supernovae

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 * alf Phe SB* 00 26 17.05140 -42 18 21.5539   3.47 2.38     K0.5IIIb 165 0
2 HD 2490 PM* 00 28 26.5213084992 -39 54 53.997198336   6.956 5.415     M0III 49 0
3 ELAIS S1 reg 00 34 44 -43 28.2           ~ 254 0
4 AT 2019qiz ev 04 46 37.880 -10 13 34.92           ~ 143 0
5 SN 2016eay SN* 12 02 51.71 +44 15 27.4           SLSN-I 83 0

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