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Main Authors:	OpenUniverse, Collaboration, The LSST Dark Energy Science, Team, The Roman HLIS Project Infrastructure, Team, The Roman RAPID Project Infrastructure, Team, The Roman Supernova Cosmology Project Infrastructure, 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., Mahabal, A., Mandelbaum, R., Masiero, J., Mau, S., Meehan, C., Meyers, J., Moraes, B., Paladini, R., Pearl, A., Malagon, A. Plazas, Rose, B., Rubin, D., Rusholme, B., Santos, A., Šarčević, N., Singhal, J., Scolnic, D., Troxel, M. A., Van Alfen, N., Van Dyke, S., Walter, C. W., Wu, T., Yamamoto, M., Yan, Y., Zhang, T.
Format:	Preprint
Published:	2025
Subjects:	Cosmology and Nongalactic Astrophysics
Online Access:	https://arxiv.org/abs/2501.05632
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_version_	1866917119902351360
author	OpenUniverse Collaboration, The LSST Dark Energy Science Team, The Roman HLIS Project Infrastructure Team, The Roman RAPID Project Infrastructure Team, The Roman Supernova Cosmology Project Infrastructure 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. Mahabal, A. Mandelbaum, R. Masiero, J. Mau, S. Meehan, C. Meyers, J. Moraes, B. Paladini, R. Pearl, A. Malagon, A. Plazas Rose, B. Rubin, D. Rusholme, B. Santos, A. Šarčević, N. Singhal, J. Scolnic, D. Troxel, M. A. Van Alfen, N. Van Dyke, S. Walter, C. W. Wu, T. Yamamoto, M. Yan, Y. Zhang, T.
author_facet	OpenUniverse Collaboration, The LSST Dark Energy Science Team, The Roman HLIS Project Infrastructure Team, The Roman RAPID Project Infrastructure Team, The Roman Supernova Cosmology Project Infrastructure 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. Mahabal, A. Mandelbaum, R. Masiero, J. Mau, S. Meehan, C. Meyers, J. Moraes, B. Paladini, R. Pearl, A. Malagon, A. Plazas Rose, B. Rubin, D. Rusholme, B. Santos, A. Šarčević, N. Singhal, J. Scolnic, D. Troxel, M. A. Van Alfen, N. Van Dyke, S. Walter, C. W. Wu, T. Yamamoto, M. Yan, Y. Zhang, T.
contents	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.
format	Preprint
id	arxiv_https___arxiv_org_abs_2501_05632
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	OpenUniverse2024: A shared, simulated view of the sky for the next generation of cosmological surveys OpenUniverse Collaboration, The LSST Dark Energy Science Team, The Roman HLIS Project Infrastructure Team, The Roman RAPID Project Infrastructure Team, The Roman Supernova Cosmology Project Infrastructure 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. Mahabal, A. Mandelbaum, R. Masiero, J. Mau, S. Meehan, C. Meyers, J. Moraes, B. Paladini, R. Pearl, A. Malagon, A. Plazas Rose, B. Rubin, D. Rusholme, B. Santos, A. Šarčević, N. Singhal, J. Scolnic, D. Troxel, M. A. Van Alfen, N. Van Dyke, S. Walter, C. W. Wu, T. Yamamoto, M. Yan, Y. Zhang, T. Cosmology and Nongalactic Astrophysics 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.
title	OpenUniverse2024: A shared, simulated view of the sky for the next generation of cosmological surveys
topic	Cosmology and Nongalactic Astrophysics
url	https://arxiv.org/abs/2501.05632

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