Simulation of Large Scale Structure Formation

Copyright © 2013 Mariwan A. Rasheed and Mohamad A. Brza. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Large scale structures were studied in simulation using gadget-2 code for Lambda cold dark matter model. The dark matter and gas which are the main components of the large scale structures are simulated. At redshift z=0, the group and clustering of dark matter and gas particles were shown differently and then at the same redshift. The construction of cluster and super clusters are shown clearly. In the present work we focused on the history of star formation and the number of stars formed at different redshifts. During the study it appeared that stars born as a result of gas cooling process. It also appeared that the stars construct groups and clusters gradually from relatively high redshift z=3.04 to the redshift z=0