Initial Conditions For Large Cosmological Simulations

By S. Prunet, C. Pichon, Dominique Aubert, D. Pogosyan, Romain Teyssier, Stefan Gottloeber. 2008

151 citations recorded by the source corpus.

This technical paper describes a software package that was designed to produce initial conditions for large cosmological simulations in the context of the Horizon collaboration. These tools generalize E. Bertschinger’s Grafic1 software to distributed parallel architectures and offer a flexible alternative to the Grafic2 software for “zoom” initial conditions, at the price of large cumulated CPU and memory usage. The codes have been validated up to resolutions of 40963 and were used to generate the initial conditions of large hydrodynamical and dark matter simulations. They also provide means to generate constrained realizations for the purpose of generating initial conditions compatible with, for example, the local group or the SDSS catalog.

Subfields: Astronomy and Astrophysics, Instrumentation, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/28da6b836bf632b0ffef266eead4ecc39bbec46d

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. Y. Dubois
2. J. Devriendt
3. M. Volonteri
4. P. Hopkins
5. Romain Teyssier
6. C. Pichon
7. A. Slyz
8. T. Kimm

In Instrumentation

1. Y. Dubois
2. J. Devriendt
3. C. Pichon
4. M. Volonteri
5. A. Slyz
6. Romain Teyssier
7. J. Silk
8. Sébastien Peirani

In Statistical and Nonlinear Physics

1. J. Devriendt
2. Romain Teyssier
3. Y. Dubois
4. A. Slyz
5. J. Rosdahl
6. Jérémy Blaizot
7. T. Kimm
8. C. Pichon

Citations in the corpus

• Bimodal gas accretion in the Horizon–MareNostrum galaxy formation simulation (2008, methodology): “To allow for this, the HorizonMareNostrum simulation and the GADGET-2 MareNostrum simulation use the same initial conditions, which are described in Gottlöber & Yepes (2007) and Prunet et al. (2008).”
• Spin alignments within the cosmic web: a theory of constrained tidal torques near filaments (2015, methodology): “In practice, the ∼70 billion particles of the Horizon-4π were sampled on a 20483 cartesian grid and the density field was smoothed using mpsmooth (Prunet et al. 2008) over a scale of 5 h−1Mpc corresponding to a mass of 1.9×1014M .”
• Connecting the cosmic web to the spin of dark haloes: implications for galaxy formation (2012, methodology): “For this work, the ∼70 billion particles of the Horizon 4π were sampled on a 20483 cartesian grid and the density field was smoothed over 5 sigmas using mpsmooth (Prunet et al. 2008), corresponding to a scale of 5 Mpc/h and a mass of 1.9× 1014M⊙.”
• Multi-scale initial conditions for cosmological simulations (2011, background): “…the Royal Astronomical Society C© 2011 RAS nloaded from https://academ ic.oup.com /m nras/article/415/3/2101/1045260 by guest on 18 January 2022 e.g. Prunet et al. 2008; Stadel et al. 2009) and subsequently degraded by either averaging over regions of 23d particles, where d is the de-refinement…”
• Dancing in the dark: galactic properties trace spin swings along the cosmic web (2014, methodology): “The initial conditions have been produced with the MPGRAFIC software (Prunet et al. 2008).”
• Extended Lyman-alpha emission from cold accretion streams (2011, methodology): “The initial conditions are generated using MPGRAFIC (Prunet et al. 2008).”
• Ahf: AMIGA'S HALO FINDER (2009, methodology): “As many other workers have done before (e.g. Springel 2005; Prunet et al. 2008) we use the Hilbert-curve.”