Lyman-Alpha Forest: Features, Detection Scenarios and Simulations

Abstract

The Epoch of Reionization (Eop) is a very important period which helps understand the evolution and formation of our universe. The Lyman alpha emission from the highly red shift quasars provides us information of the universe during the Epoch of Reionization. The Lyman alpha forest is the spectra of the Lyman alpha emission in the spectra of quasars with high red-shift. Intergalactic medium (IGM) causes the absorption lines in the spectra. The study of Lyman-alpha forest and the Epoch of Reionization has been an been a important topic in cosmology since Gun and Peterson first detected the absorb line in the spectra of quasars. This passage wil first discuss about the formation of Lyman-alpha forest and discusses the features Lyman alpha forest and the information indicated by these features about the universe during the Eop. In the last part, this paper summarizes the detection approach of Lyman alpha forest and the simulation of IGM in EoP. These results shed light on guiding further exploration of Lyman Alpha Forest.