Phantom Cosmology without Big Rip Singularity

Understand

We construct phantom energy models with the equation-of-state parameter $w$ such that $w<-1$, but finite-time future singularity does not occur.

• Such models can be divided into two classes: (i) energy density increases with time (&#34;phantom energy&#34; without &#34;Big Rip&#34; singularity) and (ii) energy density tends to constant value with time (&#34;cosmological constant&#34; with asymptotically de Sitter evolution).
• The disintegration of bound structure is confirmed in Little Rip cosmology.
• Surprisingly, we find that such disintegration (on example of Sun-Earth system) may occur even in asymptotically de Sitter phantom universe consistent with observational data.