The cosmic web for density perturbations of various scales

@article{Suhhonenko2011TheCW,
  title={The cosmic web for density perturbations of various scales},
  author={Ivan Suhhonenko and J. Einasto and Lauri Juhan Liivamagi and E. Saar and Maret Einasto and Gert Hutsi and Volker Muller and Alexei A. Starobinsky and Erik Tago and Elmo Tempel},
  journal={Astronomy and Astrophysics},
  year={2011},
  volume={531}
}
Aims. We follow the evolution of galaxy systems in numerical simulations. Our goal is to understand the role of density perturbations on various scales in the formation and evolution of the cosmic web. Methods. We perform numerical simulations with the full power spectrum of perturbations, and with a spectrum cut at long wavelengths. In addition, we have one model, where we cut the intermediate waves. We analyse the density field and study void sizes and density field clusters in different… Expand

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References

SHOWING 1-10 OF 67 REFERENCES
How filaments of galaxies are woven into the cosmic web
LARGE-SCALE structure in the distribution of galaxies is thought to have evolved through gravitational instabilities from small density fluctuations in the (largely homogeneous) early Universe. ThisExpand
Crawling the cosmic network: exploring the morphology of structure in the galaxy distribution
Although coherent large-scale structures such as filaments and walls are apparent to the eye in galaxy redshift surveys, they have so far proven difficult to characterize with computer algorithms.Expand
Clusters, filaments, and voids in a universe dominated by cold dark matter
The behavior of a flat, cold dark matter universe is investigated on scales larger than 10 Mpc using a model in which galaxies are required to form only near high peaks of the smoothed linear densityExpand
Wavelet analysis of the cosmic web formation
According to the modern cosmological paradigm galaxies and galaxy systems form from tiny density perturbations generated during the very early phase of the evolution of the Universe. Using numericalExpand
A 120-Mpc periodicity in the three-dimensional distribution of galaxy superclusters
ACCORDING to the favoured models for the formation of large-scale structure in the Universe (in which the dynamics of the Universe is dominated by cold dark matter), the distribution of galaxies andExpand
Large scale structure of the universe and cosmological perturbation theory
Abstract We review the formalism and applications of non-linear perturbation theory (PT) to understanding the large-scale structure of the Universe. We first discuss the dynamics of gravitationalExpand
The impact of box size on the properties of dark matter haloes in cosmological simulations
We investigate the impact finite simulation box size has on the structural and kinematic properties of cold dark matter (CDM) haloes forming in cosmological simulations. Our approach involvesExpand
Cold dark matter. 1: The Formation of dark halos
We use numerical simulations of critically closed cold dark matter (CDM) models to study the effects of numerical resolution on observable quantities. We study simulations with up to 256(exp 3)Expand
Multiscale phenomenology of the cosmic web
We analyze the structure and connectivity of the distinct morphologies that define the Cosmic Web. With the help of our Multiscale Morphology Filter (MMF), we dissect the matter distribution of aExpand
The 2dF Galaxy Redshift Survey: Wiener reconstruction of the cosmic web
We reconstruct the underlying density field of the Two-degree Field Galaxy Redshift Survey (2dFGRS) for the redshift range 0.035 <z <0.200 using the Wiener filtering method. The Wiener filterExpand
...
1
2
3
4
5
...