Simulations of structure formation in the universe

E Bertschinger - Annual Review of Astronomy and Astrophysics, 1998 - annualreviews.org
▪ Abstract Cosmic structure has formed as a result of gravitational amplification of primordial
density fluctuations together with the action of other physical processes (adiabatic gas …

The jeans condition: a new constraint on spatial resolution in simulations of isothermal self-gravitational hydrodynamics

JK Truelove, RI Klein, CF McKee… - The Astrophysical …, 1997 - iopscience.iop.org
We demonstrate with a new three-dimensional adaptive mesh refinement code that
perturbations arising from discretization of the equations of self-gravitational hydrodynamics …

The evolution of X-ray clusters in a low-density universe

VR Eke, JF Navarro, CS Frenk - The Astrophysical Journal, 1998 - iopscience.iop.org
We present results of N-body/gasdynamical simulations designed to investigate the
evolution of X-ray clusters in a flat, low-density, Λ-dominated cold dark matter (CDM) …

Swift : a modern highly parallel gravity and smoothed particle hydrodynamics solver for astrophysical and cosmological applications

M Schaller, J Borrow, PW Draper… - Monthly Notices of …, 2024 - academic.oup.com
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 …

Pushing back the limits: detailed properties of dwarf galaxies in a ΛCDM universe

Y Revaz, P Jablonka - Astronomy & Astrophysics, 2018 - aanda.org
We present the results of a set of high-resolution chemo-dynamical simulations of dwarf
galaxies in a ΛCDM cosmology. Out of an original cosmological box, a sample of 27 systems …

How much metal did the first stars provide to the ultra-faint dwarfs?

M Sanati, F Jeanquartier, Y Revaz… - Astronomy & …, 2023 - aanda.org
Numerical simulations of dwarf galaxies have so far failed to reproduce the observed
metallicity-luminosity relation, down to the regime of ultra-faint dwarfs (UFDs). We address …

Jeans instability of a protoplanetary gas cloud with radiation in nonextensive Tsallis kinetics

AV Kolesnichenko - Solar System Research, 2020 - Springer
In the framework of Tsallis statistics, we study the effect of medium nonextensivity on the
Jeans gravitational instability criterion for a self-gravitating protoplanetary cloud, the …

Analysis of instability of systems composed by dark and baryonic matter

GM Kremer, R André - International Journal of Modern Physics D, 2016 - World Scientific
In this work, the dynamics of self-gravitating systems composed by dark and baryonic matter
is analyzed. Searching for a description of this dynamics, a system of collisionless …

Halo correlations in nonlinear cosmic density fields

F Bernardeau, R Schaeffer - arXiv preprint astro-ph/9903387, 1999 - arxiv.org
The question we address in this paper is the determination of the correlation properties of
the dark matter halos appearing in cosmic density fields once they underwent a strongly …

Effects of sampling on statistics of large-scale structure

S Colombi, I Szapudi, AS Szalay - Monthly Notices of the Royal …, 1998 - academic.oup.com
The effects of sampling are investigated on measurements of counts-in-cells in three-
dimensional magnitude-limited galaxy surveys, with emphasis on moments of the underlying …