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In this paper, we investigate the Ricci dark energy model with perturbationsthrough the joint constraints of current cosmological data sets from dynamicaland geometrical perspectives. We use the full cosmic microwave backgroundinformation from WMAP seven-year data, the baryon acoustic oscillations fromthe Sloan Digital Sky Survey and the Two Degree Galaxy Redshift Survey, andtype Ia supernovae from the Union2 compilation of the Supernova CosmologyProject Collaboration. A global constraint is performed by employing the Markovchain Monte Carlo method. With the best-fitting results, we show thedifferences of cosmic microwave background power spectra and backgroundevolutions for the cosmological constant model and Ricci dark energy model withperturbations.

Probing Ricci dark energy model with perturbations by using WMAP seven-year cosmic microwave background measurements, BAO and Type Ia supernovae