GADGET: a code for collisionless and gasdynamical cosmological simulations
TLDR
The newly written code GADGET is described, which is suitable both for cosmological simulations of structure formation and for the simulation of interacting galaxies, and a parallel version that has been designed to run on massively parallel supercomputers with distributed memory.About:
This article is published in New Astronomy.The article was published on 2001-04-01 and is currently open access. It has received 1588 citations till now. The article focuses on the topics: Massively parallel & Smoothed-particle hydrodynamics.read more
Citations
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The Cosmological simulation code GADGET-2
TL;DR: GADGET-2 as mentioned in this paper is a massively parallel tree-SPH code, capable of following a collisionless fluid with the N-body method, and an ideal gas by means of smoothed particle hydrodynamics.
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Simulations of the formation, evolution and clustering of galaxies and quasars
Volker Springel,Simon D. M. White,Adrian Jenkins,Carlos S. Frenk,Naoki Yoshida,Liang Gao,Julio F. Navarro,Robert J. Thacker,Darren J. Croton,John C. Helly,John A. Peacock,Shaun Cole,Peter A. Thomas,Hugh M. P. Couchman,August E. Evrard,Jörg M. Colberg,Frazers Pearce +16 more
TL;DR: It is shown that baryon-induced features in the initial conditions of the Universe are reflected in distorted form in the low-redshift galaxy distribution, an effect that can be used to constrain the nature of dark energy with future generations of observational surveys of galaxies.
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Accelerating t-SNE using tree-based algorithms
TL;DR: Variants of the Barnes-Hut algorithm and of the dual-tree algorithm that approximate the gradient used for learning t-SNE embeddings in O(N log N) are developed and shown to substantially accelerate and make it possible to learnembeddings of data sets with millions of objects.
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Cosmological smoothed particle hydrodynamics simulations: a hybrid multiphase model for star formation
Volker Springel,Lars Hernquist +1 more
TL;DR: In this paper, a model for star formation and supernova feedback is proposed to describe the multiphase structure of star-forming gas on scales that are typically not resolved in cosmological simulations.
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Modelling feedback from stars and black holes in galaxy mergers
TL;DR: In this paper, a coarse-grained representation of the properties of the interstellar medium (ISM) and BH accretion starting from basic physical assumptions is proposed to incorporate feedback from star formation and black hole accretion into simulations of isolated and merging galaxies.
References
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A Universal Density Profile from Hierarchical Clustering
TL;DR: In this article, the authors used high-resolution N-body simulations to study the equilibrium density profiles of dark matter halos in hierarchically clustering universes, and they found that all such profiles have the same shape, independent of the halo mass, the initial density fluctuation spectrum, and the values of the cosmological parameters.
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The Structure of cold dark matter halos
TL;DR: In this article, high-resolution N-body simulations show that the density profiles of dark matter halos formed in the standard CDM cosmogony can be fit accurately by scaling a simple universal profile.
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Smoothed particle hydrodynamics: Theory and application to non-spherical stars
R. A. Gingold,Joseph J Monaghan +1 more
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A fast algorithm for particle simulations
TL;DR: An algorithm is presented for the rapid evaluation of the potential and force fields in systems involving large numbers of particles whose interactions are Coulombic or gravitational in nature, making it considerably more practical for large-scale problems encountered in plasma physics, fluid dynamics, molecular dynamics, and celestial mechanics.