FLAMINGO: calibrating large cosmological hydrodynamical simulations with machine learning. [PDF]
Mon Not R Astron Soc, 2023 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.
Kugel R +19 more
europepmc +3 more sources
Hydrodynamical Simulations of Black Hole Binary Formation in AGN Disks [PDF]
The Astrophysical Journal Letters, 2023 We study close encounters between two single black holes (BHs) embedded in an AGN disk using a series of global 2D hydrodynamics simulations. We find that when the disk density is sufficiently high, bound BH binaries can be formed by the collision of ...
Jiaru Li +4 more
doaj +2 more sources
Inhomogeneous Reionization Models in Cosmological Hydrodynamical Simulations [PDF]
Monthly notices of the Royal Astronomical Society, 2019 In this work we present a new hybrid method to simulate the thermal effects of the reionization in cosmological hydrodynamical simulations. The method improves upon the standard approach used in simulations of the intergalactic medium (IGM) and galaxy ...
Davies, F. B. +4 more
core +4 more sources
Self-Consistent Modeling of Reionization in Cosmological Hydrodynamical Simulations [PDF]
, 2017 The ultraviolet background (UVB) emitted by quasars and galaxies governs the ionization and thermal state of the intergalactic medium (IGM), regulates the formation of high-redshift galaxies, and is thus a key quantity for modeling cosmic reionization ...
Hennawi, Joseph F +2 more
core +2 more sources
Implications of hydrodynamical simulations for the interpretation of direct dark matter searches [PDF]
, 2017 In recent years, realistic hydrodynamical simulations of galaxies like the Milky Way have become available, enabling a reliable estimate of the dark matter density and velocity distribution in the Solar neighborhood.
Bertone, Gianfranco, Bozorgnia, Nassim
core +2 more sources
Galaxies that Shine: radiation-hydrodynamical simulations of disk galaxies [PDF]
, 2015 Radiation feedback is typically implemented using subgrid recipes in hydrodynamical simulations of galaxies. Very little work has so far been performed using radiation-hydrodynamics (RHD), and there is no consensus on the importance of radiation feedback
Agertz, Oscar +3 more
core +5 more sources
The FLAMINGO project: cosmological hydrodynamical simulations for large-scale structure and galaxy cluster surveys [PDF]
Monthly notices of the Royal Astronomical Society, 2023 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 stellar ...
J. Schaye +19 more
semanticscholar +1 more source
Hydrodynamical Simulations of the Galaxy Population: Enduring Successes and Outstanding Challenges [PDF]
Annual Review of Astronomy and Astrophysics, 2023 We review the progress in modeling the galaxy population in hydrodynamical simulations of the ΛCDM cosmogony. State-of-the-art simulations now broadly reproduce the observed spatial clustering of galaxies; the distributions of key characteristics, such ...
R. Crain, F. Voort
semanticscholar +1 more source
Comparison of Low-Redshift Lyman-α Forest Observations to Hydrodynamical Simulations with Dark Photon Dark Matter. [PDF]
Physical Review Letters, 2022 Recent work has suggested that an additional ≲6.9 eV per baryon of heating in the intergalactic medium is needed to reconcile hydrodynamical simulations with Lyman-α forest absorption line widths at redshift z≃0.1.
J. Bolton +3 more
semanticscholar +1 more source
Gravitational lenses in hydrodynamical simulations [PDF]
Proceedings of the International Astronomical Union, 2022 The gravitational lensing signal produced by a galaxy or a galaxy cluster is determined by its total matter distribution, providing us with a way to directly constrain their dark matter content.
G. Despali +2 more
semanticscholar +1 more source