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Swift: A modern highly-parallel gravity and smoothed particle hydrodynamics solver for astrophysical and cosmological applications (2024)
Journal Article
Schaller, M., Borrow, J., Draper, P. W., Ivkovic, M., McAlpine, S., Vandenbroucke, B., Bahé, Y., Chaikin, E., Chalk, A. B. G., Chan, T. K., Correa, C., van Daalen, M., Elbers, W., Gonnet, P., Hausammann, L., Helly, J., Huško, F., Kegerreis, J. A., Nobels, F. S. J., Ploeckinger, S., …Xiang, Z. (2024). Swift: A modern highly-parallel gravity and smoothed particle hydrodynamics solver for astrophysical and cosmological applications. Monthly Notices of the Royal Astronomical Society, 530(2), 2378–2419. https://doi.org/10.1093/mnras/stae922

Numerical simulations have become one of the key tools used by theorists in all the fields of astrophysics and cosmology. The development of modern tools that target the largest existing computing systems and exploit state-of-the-art numerical method... Read More about Swift: A modern highly-parallel gravity and smoothed particle hydrodynamics solver for astrophysical and cosmological applications.

FLAMINGO: calibrating large cosmological hydrodynamical simulations with machine learning. (2023)
Journal Article
Kugel, R., Schaye, J., Schaller, M., Helly, J. C., Braspenning, J., Elbers, W., …Vernon, I. (2023). FLAMINGO: calibrating large cosmological hydrodynamical simulations with machine learning. Monthly Notices of the Royal Astronomical Society, 526(4), 6103-6127. https://doi.org/10.1093/mnras/stad2540

To fully take advantage of the data provided by large-scale structure surveys, we need to quantify the potential impact of baryonic effects, such as feedback from active galactic nuclei (AGN) and star formation, on cosmological observables. In simula... Read More about FLAMINGO: calibrating large cosmological hydrodynamical simulations with machine learning..

The FLAMINGO project: cosmological hydrodynamical simulations for large-scale structure and galaxy cluster surveys (2023)
Journal Article
Schaye, J., Kugel, R., Schaller, M., Helly, . J. C., Braspenning, J., Elbers, W., …Nobels, F. S. J. (2023). The FLAMINGO project: cosmological hydrodynamical simulations for large-scale structure and galaxy cluster surveys. Monthly Notices of the Royal Astronomical Society, 526(4), 4978–5020. https://doi.org/10.1093/mnras/stad2419

We introduce the Virgo Consortium’s FLAMINGO suite of hydrodynamical simulations for cosmology and galaxy cluster physics. To ensure the simulations are sufficiently realistic for studies of large-scale structure, the subgrid prescriptions for stella... Read More about The FLAMINGO project: cosmological hydrodynamical simulations for large-scale structure and galaxy cluster surveys.

EAGLE-like simulation models do not solve the entropy core problem in groups and clusters of galaxies (2023)
Journal Article
Altamura, E., Kay, S. T., Bower, R. G., Schaller, M., Bahé, Y. M., Schaye, J., …Towler, I. (2023). EAGLE-like simulation models do not solve the entropy core problem in groups and clusters of galaxies. Monthly Notices of the Royal Astronomical Society, 520(2), 3164-3186. https://doi.org/10.1093/mnras/stad342

Recent high-resolution cosmological hydrodynamic simulations run with a variety of codes systematically predict large amounts of entropy in the intra-cluster medium at low redshift, leading to flat entropy profiles and a suppressed cool-core populati... Read More about EAGLE-like simulation models do not solve the entropy core problem in groups and clusters of galaxies.

The importance of black hole repositioning for galaxy formation simulations (2022)
Journal Article
Bahé, Y. M., Schaye, J., Schaller, M., Bower, R. G., Borrow, J., Chaikin, E., …Ploeckinger, S. (2022). The importance of black hole repositioning for galaxy formation simulations. Monthly Notices of the Royal Astronomical Society, 516(1), 167-184. https://doi.org/10.1093/mnras/stac1339

Active galactic nucleus (AGN) feedback from accreting supermassive black holes (SMBHs) is an essential ingredient of galaxy formation simulations. The orbital evolution of SMBHs is affected by dynamical friction that cannot be predicted self-consiste... Read More about The importance of black hole repositioning for galaxy formation simulations.

sígame v3: Gas Fragmentation in Postprocessing of Cosmological Simulations for More Accurate Infrared Line Emission Modeling (2021)
Journal Article
Olsen, K. P., Burkhart, B., Mac Low, M., Treß, R. G., Greve, T. R., Vizgan, D., …Narayanan, D. (2021). sígame v3: Gas Fragmentation in Postprocessing of Cosmological Simulations for More Accurate Infrared Line Emission Modeling. Astrophysical Journal, 922(1), Article 88. https://doi.org/10.3847/1538-4357/ac20d4

We present an update to the framework called Simulator of Galaxy Millimeter/submillimeter Emission (SÍGAME). SÍGAME derives line emission in the far-infrared (FIR) for galaxies in particle-based cosmological hydrodynamics simulations by applying radi... Read More about sígame v3: Gas Fragmentation in Postprocessing of Cosmological Simulations for More Accurate Infrared Line Emission Modeling.

SPHENIX: Smoothed Particle Hydrodynamics for the next generation of galaxy formation simulations (2021)
Journal Article
Borrow, J., Schaller, M., Bower, R. G., & Schaye, J. (2022). SPHENIX: Smoothed Particle Hydrodynamics for the next generation of galaxy formation simulations. Monthly Notices of the Royal Astronomical Society, 511(2), 2637-2389. https://doi.org/10.1093/mnras/stab3166

Smoothed Particle Hydrodynamics (SPH) is a ubiquitous numerical method for solving the fluid equations, and is prized for its conservation properties, natural adaptivity, and simplicity. We introduce the SPHENIX SPH scheme, which was designed with th... Read More about SPHENIX: Smoothed Particle Hydrodynamics for the next generation of galaxy formation simulations.

Inconsistencies arising from the coupling of galaxy formation sub-grid models to pressure-smoothed particle hydrodynamics (2021)
Journal Article
Borrow, J., Schaller, M., & Bower, R. G. (2021). Inconsistencies arising from the coupling of galaxy formation sub-grid models to pressure-smoothed particle hydrodynamics. Monthly Notices of the Royal Astronomical Society, 505(2), 2316-2327. https://doi.org/10.1093/mnras/stab1423

Smoothed particle hydrodynamics (SPH) is a Lagrangian method for solving the fluid equations that is commonplace in astrophysics, prized for its natural adaptivity and stability. The choice of variable to smooth in SPH has been the topic of contentio... Read More about Inconsistencies arising from the coupling of galaxy formation sub-grid models to pressure-smoothed particle hydrodynamics.

Cosmological baryon transfer in the simba simulations (2019)
Journal Article
Borrow, J., Anglés-Alcázar, D., & Davé, R. (2020). Cosmological baryon transfer in the simba simulations. Monthly Notices of the Royal Astronomical Society, 491(4), 6102-6119. https://doi.org/10.1093/mnras/stz3428

We present a framework for characterizing the large-scale movement of baryons relative to dark matter in cosmological simulations, requiring only the initial conditions and final state of the simulation. This is performed using the spread metric that... Read More about Cosmological baryon transfer in the simba simulations.