科研之友
微信
新浪微博
Facebook
分享链接
摘要
We simulate the density of dark energy by using a power series to analyse the possible evolution of dark energy. The parameters are constrained from the newly released Gold sample of the supernova dataset. The evolutions of dark energy, as the power series from two free parameters to live free parameters, have the common and the different characters. We may conclude that either the density of dark energy possibly oscillates or increases after it decreases to a minimum value. Accordingly, the state equation of dark energy oscillates or evolves from omega(de) > -1 in the past to omega(de) < -1 around the present epoch.
- 出版日期2007-5
- 单位大连理工大学
