The Mystery of the Dark Energy based on Energy Materials

摘要

Recently the observations on the type la supernova has showed the accelerated expansion of the universe which can be used to illustrate by the "dark energy". In order to understand the accelerated expansion of the universe and the dark energy, people study them based on two aspects: theoretical mechanism and cosmology observation restrictions. The simplest and the most frequently used models of the dark energy are the vacuum energy, cosmic constant model and quintessence model etc. The measurement of the universe can be used to identify the properties of the dark energy. The anisotropy of the type la supernova and cosmic microwave background radiation are the methods which commonly used to detect the dark energy, other methods are weak lensing, X ray gas group, high red shift gamma-ray burst and so on.