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N-Body Simulation for Dark Matter Clustering at Different Epochs of the Universe | ||
| Journal of Al-Nahrain University - Science | ||
| Article 1, Volume 16, Issue 1, 2013, Pages 84-90 | ||
| Authors | ||
| Mariwan Ahmed Rasheed; Mohamad Ali Brza | ||
| Abstract | ||
| In this study the cold dark matter particles is simulated at different epochs of the universe using Gadget-2 code for lambda cold dark matter model (ΛCDM). Firstly, the dark matter particles distributed in homogenous form then with time because of the gravity effects the particles collected gradually to construct sub clumps of halo and then big clumps of halo. This process is shown in the simulation from redshift z17.7 (700Myr.) after the Big Bang of the universe to z0 (13.3Gyr.). During these epochs of the universe the clustering of dark matter halo, filaments, and voids are constructed. These clusters of halo which were found from the simulation are the basic parts of galaxy clusters. In the simulation also the velocity scale of each epoch shows the displacement of the dark matter particles at different directions to construct the halo. | ||
| Keywords | ||
| Body Simulation; Dark Matter Clustering; lambda cold dark matter model | ||
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