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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2025
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| Online Access: | https://arxiv.org/abs/2508.06608 |
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| _version_ | 1866915466424877056 |
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| author | Wetzel, Andrew Samuel, Jenna Gandhi, Pratik J. Ponnada, Sam B. Su, Kung-Yi Arora, Arpit Angles-Alcazar, Daniel Hayward, Christopher C. Sanderson, Robyn E. Feldmann, Robert Cochrane, Rachel Nikakhtar, Farnik Panithanpaisal, Nondh Benavides, Jose A. Pandya, Viraj Grudic, Mike Hummels, Cameron Gurvich, Alexander B. Hafen, Zachary Ma, Xiangcheng Garrison-Kimmel, Shea Sameie, Omid Chan, T. K El-Badry, Kareem Necib, Lina Loebman, Sarah Wellons, Sarah Robles, Victor H. Wheeler, Coral Moreno, Jorge Stern, Jonathan Boylan-Kolchin, Michael Bullock, James S. Faucher-Giguere, Claude-Andre Keres, Dusan Quataert, Eliot Hopkins, Philip F. |
| author_facet | Wetzel, Andrew Samuel, Jenna Gandhi, Pratik J. Ponnada, Sam B. Su, Kung-Yi Arora, Arpit Angles-Alcazar, Daniel Hayward, Christopher C. Sanderson, Robyn E. Feldmann, Robert Cochrane, Rachel Nikakhtar, Farnik Panithanpaisal, Nondh Benavides, Jose A. Pandya, Viraj Grudic, Mike Hummels, Cameron Gurvich, Alexander B. Hafen, Zachary Ma, Xiangcheng Garrison-Kimmel, Shea Sameie, Omid Chan, T. K El-Badry, Kareem Necib, Lina Loebman, Sarah Wellons, Sarah Robles, Victor H. Wheeler, Coral Moreno, Jorge Stern, Jonathan Boylan-Kolchin, Michael Bullock, James S. Faucher-Giguere, Claude-Andre Keres, Dusan Quataert, Eliot Hopkins, Philip F. |
| contents | We describe the second data release (DR2) of the FIRE-2 cosmological zoom-in simulations of galaxy formation, from the Feedback In Realistic Environments (FIRE) project, available at http://flathub.flatironinstitute.org/fire. DR2 includes all snapshots for most simulations, starting at z ~ 99, with all snapshot time spacings <~ 25 Myr. The Core suite -- comprising 14 Milky Way-mass galaxies, 5 SMC/LMC-mass galaxies, and 4 lower-mass galaxies -- includes 601 snapshots to z = 0. For the Core suite, we also release resimulations with physics variations: (1) dark-matter-only versions; (2) a modified ultraviolet background with later reionization at z = 7.8; (3) magnetohydrodynamics, anisotropic conduction, and viscosity in gas; and (4) a model for cosmic-ray injection, transport, and feedback (assuming a constant diffusion coefficient). The Massive Halo suite now includes 8 massive galaxies with 278 snapshots to z = 1. The High Redshift suite includes 34 simulations: in addition to the 22 simulations run to z = 5, we now include 12 additional simulations run to z = 7 and z = 9. We also release 4 dark-matter-only cosmological boxes used to generate zoom-in initial conditions for many FIRE simulations. Most simulations include catalogs of (sub)halos and galaxies at all available snapshots, and most Core simulations to z = 0 include full halo merger trees. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_06608 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Second public data release of the FIRE-2 cosmological zoom-in simulations of galaxy formation Wetzel, Andrew Samuel, Jenna Gandhi, Pratik J. Ponnada, Sam B. Su, Kung-Yi Arora, Arpit Angles-Alcazar, Daniel Hayward, Christopher C. Sanderson, Robyn E. Feldmann, Robert Cochrane, Rachel Nikakhtar, Farnik Panithanpaisal, Nondh Benavides, Jose A. Pandya, Viraj Grudic, Mike Hummels, Cameron Gurvich, Alexander B. Hafen, Zachary Ma, Xiangcheng Garrison-Kimmel, Shea Sameie, Omid Chan, T. K El-Badry, Kareem Necib, Lina Loebman, Sarah Wellons, Sarah Robles, Victor H. Wheeler, Coral Moreno, Jorge Stern, Jonathan Boylan-Kolchin, Michael Bullock, James S. Faucher-Giguere, Claude-Andre Keres, Dusan Quataert, Eliot Hopkins, Philip F. Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics We describe the second data release (DR2) of the FIRE-2 cosmological zoom-in simulations of galaxy formation, from the Feedback In Realistic Environments (FIRE) project, available at http://flathub.flatironinstitute.org/fire. DR2 includes all snapshots for most simulations, starting at z ~ 99, with all snapshot time spacings <~ 25 Myr. The Core suite -- comprising 14 Milky Way-mass galaxies, 5 SMC/LMC-mass galaxies, and 4 lower-mass galaxies -- includes 601 snapshots to z = 0. For the Core suite, we also release resimulations with physics variations: (1) dark-matter-only versions; (2) a modified ultraviolet background with later reionization at z = 7.8; (3) magnetohydrodynamics, anisotropic conduction, and viscosity in gas; and (4) a model for cosmic-ray injection, transport, and feedback (assuming a constant diffusion coefficient). The Massive Halo suite now includes 8 massive galaxies with 278 snapshots to z = 1. The High Redshift suite includes 34 simulations: in addition to the 22 simulations run to z = 5, we now include 12 additional simulations run to z = 7 and z = 9. We also release 4 dark-matter-only cosmological boxes used to generate zoom-in initial conditions for many FIRE simulations. Most simulations include catalogs of (sub)halos and galaxies at all available snapshots, and most Core simulations to z = 0 include full halo merger trees. |
| title | Second public data release of the FIRE-2 cosmological zoom-in simulations of galaxy formation |
| topic | Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2508.06608 |