Dark Matter Halo Structure in CDM Hydrodynamical Simulations
, 1998 We have carried out a comparative analysis of the properties of dark matter halos in N-body and hydrodynamical simulations. We analyze their density profiles, shapes and kinematical properties with the aim of assessing the effects that hydrodynamical ...
nguez-Tenreiro, R. Dom\ci +1 more
core +2 more sources
The GHOSDT Simulations: I. Magnetic Support in Gas-rich Disks
The Astrophysical JournalGalaxies at redshift z ∼ 1–2 display high star formation rates with elevated cold gas fractions and column densities. Simulating a self-regulated interstellar medium (ISM) in a hydrodynamical, self-consistent context has proven challenging due to strong ...
Alon Gurman +3 more
doaj +1 more source
Can Cosmological Simulations Reproduce the Spectroscopically Confirmed Galaxies Seen at z ≥ 10?
The Astrophysical Journal Letters, 2023 Recent photometric detections of extreme ( z > 10) redshift galaxies from the JWST have been shown to be in strong tension with existing simulation models for galaxy formation and in the most acute case, in tension with ΛCDM itself.
B. W. Keller +3 more
doaj +1 more source
The new computer program for three dimensional relativistic hydrodynamical model [PDF]
, 2006 An effective computer program for three dimensional relativistic hydrodynamical model has been developed. It implements a new approach to the early hot phase of relativistic heavy-ion collisions.
Kikola, Daniel +4 more
core +1 more source
Hydrodynamic Simulations of Astrophysical Jets [PDF]
Proceedings of XII Multifrequency Behaviour of High Energy Cosmic Sources Workshop — PoS(MULTIF2017), 2018 {We present recent results of our three-dimensional (3-D) simulations of astrophysical jets. These efforts use the the PLUTO code (Mignone \textit{et al. 2007}) run in a highly parallel environment for the hydrodynamic, magneto-hydrodynamic (MHD), relativistic hydrodynamic (RHD), and relativistic, magnetohydrodynamic (RMHD) simulations.
James Beall +6 more
openaire +1 more source
Impacts of the Metagalactic Ultraviolet Background on Circumgalactic Medium Absorption Systems
The Astrophysical JournalAmong the many different pieces of physics that go into simulations of the circumgalactic medium (CGM), the metagalactic ultraviolet background (UVB) plays a significant role in determining the ionization state of different metal species.
Elias Taira +7 more
doaj +1 more source
Guangqi: A 2D Radiation Hydrodynamic Code with Realistic Equations of State
The Astrophysical Journal Supplement SeriesWe present Guangqi , a new 2D, finite-volume radiation hydrodynamics code designed for high-performance astrophysical simulations. The code simultaneously resolves the hydrodynamic equations for complex equations of state (EoS) and implicit radiation ...
Zhuo Chen, Xue-Ning Bai
doaj +1 more source
Numerical simulations of surface convection in a late M-dwarf [PDF]
, 2002 Based on detailed 2D and 3D numerical radiation-hydrodynamics (RHD) simulations of time-dependent compressible convection, we have studied the dynamics and thermal structure of the convective surface layers of a prototypical late-type M-dwarf (Teff~2800K
Allard +30 more
core +2 more sources
Extracting the Temperature Analytically in Hydrodynamics Simulations with Gas and Radiation Pressure
The Astrophysical JournalNumerical hydrodynamics simulations of gases dominated by ideal, nondegenerate matter pressure and thermal radiation pressure in equilibrium entail finding the temperature as part of the evolution.
Thomas W. Baumgarte, Stuart L. Shapiro
doaj +1 more source
Dynamical Bar-Mode Instability in Differentially Rotating Magnetized Neutron Stars [PDF]
, 2009 This paper presents a numerical study over a wide parameter space of the likelihood of the dynamical bar-mode instability in differentially rotating magnetized neutron stars.
Anninos +14 more
core +1 more source