Study of star formations in lambda cold dark matter model

الملخص EN

Star formation inside a box of size (3 Mpc /120 h) was studied using Lambda Cold Dark Matter (ΛCDM) model by simulating one million dark matter particles and on million gas particles.

The particles were simulated from early Universe, z = 30 (450) million years) to z = 0 (13.4) billion years In the simulation galaxy clusters, voids and filaments were constructed at low redshift, Stars were formed from redshift z = 99.5.

The formations increased with decreasing redshifts but at some redshifts stars were not formed and the total number of star formed in the box was28443 stars.

The gadget-2 code was depended in the simulation and sixteen processors of high performance supercomputer of Nottingham University-England were used.