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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2024
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| Online Access: | https://arxiv.org/abs/2405.00766 |
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| _version_ | 1866911862580314112 |
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| author | Rose, Jonah C. Torrey, Paul Villaescusa-Navarro, Francisco Lisanti, Mariangela Nguyen, Tri Roy, Sandip Kollmann, Kassidy E. Vogelsberger, Mark Cyr-Racine, Francis-Yan Medvedev, Mikhail V. Genel, Shy Anglés-Alcázar, Daniel Kallivayalil, Nitya Wang, Bonny Y. Costanza, Belén O'Neil, Stephanie Roche, Cian Karmakar, Soumyodipta Garcia, Alex M. Low, Ryan Lin, Shurui Mostow, Olivia Cruz, Akaxia Caputo, Andrea Farahi, Arya Muñoz, Julian B. Necib, Lina Teyssier, Romain Dalcanton, Julianne J. Spergel, David |
| author_facet | Rose, Jonah C. Torrey, Paul Villaescusa-Navarro, Francisco Lisanti, Mariangela Nguyen, Tri Roy, Sandip Kollmann, Kassidy E. Vogelsberger, Mark Cyr-Racine, Francis-Yan Medvedev, Mikhail V. Genel, Shy Anglés-Alcázar, Daniel Kallivayalil, Nitya Wang, Bonny Y. Costanza, Belén O'Neil, Stephanie Roche, Cian Karmakar, Soumyodipta Garcia, Alex M. Low, Ryan Lin, Shurui Mostow, Olivia Cruz, Akaxia Caputo, Andrea Farahi, Arya Muñoz, Julian B. Necib, Lina Teyssier, Romain Dalcanton, Julianne J. Spergel, David |
| contents | We introduce the DREAMS project, an innovative approach to understanding the astrophysical implications of alternative dark matter models and their effects on galaxy formation and evolution. The DREAMS project will ultimately comprise thousands of cosmological hydrodynamic simulations that simultaneously vary over dark matter physics, astrophysics, and cosmology in modeling a range of systems -- from galaxy clusters to ultra-faint satellites. Such extensive simulation suites can provide adequate training sets for machine-learning-based analyses. This paper introduces two new cosmological hydrodynamical suites of Warm Dark Matter, each comprised of 1024 simulations generated using the Arepo code. One suite consists of uniform-box simulations covering a $(25~h^{-1}~{\rm M}_\odot)^3$ volume, while the other consists of Milky Way zoom-ins with sufficient resolution to capture the properties of classical satellites. For each simulation, the Warm Dark Matter particle mass is varied along with the initial density field and several parameters controlling the strength of baryonic feedback within the IllustrisTNG model. We provide two examples, separately utilizing emulators and Convolutional Neural Networks, to demonstrate how such simulation suites can be used to disentangle the effects of dark matter and baryonic physics on galactic properties. The DREAMS project can be extended further to include different dark matter models, galaxy formation physics, and astrophysical targets. In this way, it will provide an unparalleled opportunity to characterize uncertainties on predictions for small-scale observables, leading to robust predictions for testing the particle physics nature of dark matter on these scales. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_00766 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Introducing the DREAMS Project: DaRk mattEr and Astrophysics with Machine learning and Simulations Rose, Jonah C. Torrey, Paul Villaescusa-Navarro, Francisco Lisanti, Mariangela Nguyen, Tri Roy, Sandip Kollmann, Kassidy E. Vogelsberger, Mark Cyr-Racine, Francis-Yan Medvedev, Mikhail V. Genel, Shy Anglés-Alcázar, Daniel Kallivayalil, Nitya Wang, Bonny Y. Costanza, Belén O'Neil, Stephanie Roche, Cian Karmakar, Soumyodipta Garcia, Alex M. Low, Ryan Lin, Shurui Mostow, Olivia Cruz, Akaxia Caputo, Andrea Farahi, Arya Muñoz, Julian B. Necib, Lina Teyssier, Romain Dalcanton, Julianne J. Spergel, David Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics We introduce the DREAMS project, an innovative approach to understanding the astrophysical implications of alternative dark matter models and their effects on galaxy formation and evolution. The DREAMS project will ultimately comprise thousands of cosmological hydrodynamic simulations that simultaneously vary over dark matter physics, astrophysics, and cosmology in modeling a range of systems -- from galaxy clusters to ultra-faint satellites. Such extensive simulation suites can provide adequate training sets for machine-learning-based analyses. This paper introduces two new cosmological hydrodynamical suites of Warm Dark Matter, each comprised of 1024 simulations generated using the Arepo code. One suite consists of uniform-box simulations covering a $(25~h^{-1}~{\rm M}_\odot)^3$ volume, while the other consists of Milky Way zoom-ins with sufficient resolution to capture the properties of classical satellites. For each simulation, the Warm Dark Matter particle mass is varied along with the initial density field and several parameters controlling the strength of baryonic feedback within the IllustrisTNG model. We provide two examples, separately utilizing emulators and Convolutional Neural Networks, to demonstrate how such simulation suites can be used to disentangle the effects of dark matter and baryonic physics on galactic properties. The DREAMS project can be extended further to include different dark matter models, galaxy formation physics, and astrophysical targets. In this way, it will provide an unparalleled opportunity to characterize uncertainties on predictions for small-scale observables, leading to robust predictions for testing the particle physics nature of dark matter on these scales. |
| title | Introducing the DREAMS Project: DaRk mattEr and Astrophysics with Machine learning and Simulations |
| topic | Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2405.00766 |