Diagnosing $\Lambda$HDE model with statefinder hierarchy and fractional growth parameter

Understand

Recently, a new dark energy model called $\Lambda$HDE was proposed.

• In this model, dark energy consists of two parts: cosmological constant $\Lambda$ and holographic dark energy (HDE).
• Two key parameters of this model are the fractional density of cosmological constant $\Omega_{\Lambda0}$, and the dimensionless HDE parameter $c$.
• Since these two parameters determine the dynamical properties of DE and the destiny of universe, it is important to study the impacts of different values of $\Omega_{\Lambda0}$ and $c$ on the $\Lambda$HDE model.