| Galaxy clusters are the largest organised structures known in the universe. X-ray emission from galaxy clusters reveals the presence of hot gas (T > 10 7 K) in the cluster. Recent observations of soft X-ray emission from galaxy clusters reveal that there is more emission than is expected from the hot gas. This phenomenon is termed the cluster soft excess emission and it is likely due to emission from cooler gas (T > 106 K).; This thesis analyzes a large scale cosmological simulation of the universe to investigate X-ray and soft X-ray emission form a simulated galaxy cluster and its surroundings, in order to study the soft excess emission phenomenon. For this purpose, a cluster in the simulation was chosen and the emission calculated from it and its neighboring regions and these agree with current observations.; It is found that the cosmological simulation is able to predict the soft excess emission at large distances from the cluster center (R > 1Mpc), where the excess emission is more commonly found. For lines of sight towards the cluster center, the warm gas in this simulation predicts virtually no soft excess emission. |
