The SAMI Galaxy Survey: comparing 3D spectroscopic observations with galaxies from cosmological hydrodynamical simulations [PDF]
Monthly notices of the Royal Astronomical Society, 2018 Cosmological hydrodynamical simulations are rich tools to understand the build-up of stellar mass and angular momentum in galaxies, but require some level of calibration to observations. We compare predictions at z similar to 0 from the EAGLE, HYDRANGEA,
J. van de Sande +21 more
semanticscholar +1 more source
A Universal Equation to Predict Ωm from Halo and Galaxy Catalogs
The Astrophysical Journal, 2023 We discover analytic equations that can infer the value of Ω _m from the positions and velocity moduli of halo and galaxy catalogs. The equations are derived by combining a tailored graph neural network (GNN) architecture with symbolic regression.
Helen Shao +16 more
doaj +1 more source
Robustness of a high-resolution central scheme for hydrodynamic simulations in full general relativity [PDF]
, 2005 A recent paper by Lucas-Serrano et al. indicates that a high-resolution central (HRC) scheme is robust enough to yield accurate hydrodynamical simulations of special relativistic flows in the presence of ultrarelativistic speeds and strong shock waves ...
A. Kurganov +5 more
core +1 more source
Coevolution of Dust and Chemistry in Galaxy Simulations with a Resolved Interstellar Medium
The Astrophysical Journal, 2023 Nearby dwarf irregular galaxies are ideal laboratories for studying the interstellar medium (ISM) at low metallicity, which is expected to be common for galaxies at very high redshift being observed by JWST. We present the first high-resolution (∼0.2 pc)
Chia-Yu Hu +2 more
doaj +1 more source
Analysis of Galaxy Formation with Hydrodynamics [PDF]
, 1996 We present a hydrodynamical code based on the Smooth Particle Hydrodynamics technique implemented in an AP3M code aimed at solving the hydrodynamical and gravitational equations in a cosmological frame.
Abadi, M. G. +2 more
core +2 more sources
Lattice Boltzmann simulations of liquid crystal hydrodynamics [PDF]
Physical Review E, 2001 We describe a lattice Boltzmann algorithm to simulate liquid crystal hydrodynamics. The equations of motion are written in terms of a tensor order parameter. This allows both the isotropic and the nematic phases to be considered. Backflow effects and the hydrodynamics of topological defects are naturally included in the simulations, as are viscoelastic
DENNISTON C, ORLANDINI, ENZO, YEOMANS JM
openaire +5 more sources
Radiation hydrodynamical simulations of eruptive mass loss from progenitors of Type Ibn/IIn supernovae [PDF]
Astronomy & Astrophysics, 2019 Context. Observations suggest that some massive stars experience violent and eruptive mass loss associated with significant brightening that cannot be explained by hydrostatic stellar models.
Naoto Kuriyama, T. Shigeyama
semanticscholar +1 more source
The impact of assembly bias on the halo occupation in hydrodynamical simulations [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We investigate the variations in galaxy occupancy of the dark matter haloes with the large-scale environment and halo formation time, using two state-of-the-art hydrodynamical cosmological simulations, EAGLE and Illustris.
M. Artale +3 more
semanticscholar +1 more source
Energy decay in a granular gas collapse
New Journal of Physics, 2017 An inelastic hard ball bouncing repeatedly off the ground comes to rest in finite time by performing an infinite number of collisions. Similarly, a granular gas under the influence of external gravity, condenses at the bottom of the confinement due to ...
Lidia Almazán +3 more
doaj +1 more source
Asymmetric eROSITA bubbles as the evidence of a circumgalactic medium wind
Nature Communications, 2023 The origins of the pair of X-ray bubbles, called eROSITA bubbles (eRBs), detected in the halo of Milky Way are debated. Here, the authors show hydrodynamical simulations suggesting circumgalactic medium wind model can explain asymmetric eRBs.
Guobin Mou +8 more
doaj +1 more source