Results 31 to 40 of about 5,542,291 (347)
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
Hydrodynamical Simulations of the Lyman Alpha Forest: Model Comparisons [PDF]
, 1999 We investigate the properties of the Lyman alpha forest as predicted by numerical simulations for a range of currently viable cosmological models. This is done in order to understand the dependencies of the forest on cosmological parameters.
Avery Meiksin +14 more
core +2 more sources
E pur si muove: Galilean-invariant cosmological hydrodynamical simulations on a moving mesh [PDF]
, 2009 Hydrodynamic cosmological simulations at present usually employ either the Lagrangian smoothed particle hydrodynamics (SPH) technique or Eulerian hydrodynamics on a Cartesian mesh with (optional) adaptive mesh refinement (AMR). Both of these methods have
V. Springel
semanticscholar +1 more source
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
Numerical Simulations of Jets from Active Galactic Nuclei
Galaxies, 2019 Numerical simulations have been playing a crucial role in the understanding of jets from active galactic nuclei (AGN) since the advent of the first theoretical models for the inflation of giant double radio galaxies by continuous injection in the late ...
José-María Martí
doaj +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
A Self-gravity Module for the PLUTO Code
The Astrophysical Journal Supplement Series, 2023 We present a novel implementation of an iterative solver for the solution of Poisson’s equation in the PLUTO code for astrophysical fluid dynamics. Our solver relies on a relaxation method in which convergence is sought as the steady-state solution of a ...
Ankush Mandal +2 more
doaj +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
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