Probing Lambda-DGP Braneworld Model

Abstract

In this article we study cosmic dynamics in the context of normal branch of DGP braneworld model. Using the current Planck data, we best fit the model and cosmological parameters in non-flat $\Lambda$DGP. With the transition redshift as a basic variable and statefinder parameters, our result shows that the Universe starts its accelerated expansion phase, slightly earlier than expected in $\Lambda$CDM cosmology. The result also alleviates the coincidence problem of the $\Lambda$CDM model.

References in corpus (18)

• Dark Energy and the Accelerating Universe
• Improved Cosmological Constraints from New, Old and Combined Supernova Datasets
• Spectra and Light Curves of Six Type Ia Supernovae at 0.511 < z < 1.12 and the Union2 Compilation
• Cascading DGP
• Statefinder diagnosis for the interacting model of holographic dark energy
• Matter density perturbations in interacting quintessence models
• Interacting models of soft coincidence
• Exploring the Dark Energy Redshift Desert with the Sandage-Loeb Test
• Dynamics of Interacting Quintessence Models: Observational Constraints
• Statefinder diagnostic and stability of modified gravity consistent with holographic and new agegraphic dark energy
• Confronting Dark Energy Models using Galaxy Cluster Number Counts
• Dark Energy Coupled with Dark Matter in Viscous Fluid Cosmology
• The Coincidence Problem and Interacting Holographic Dark Energy
• Dark-Energy Dynamics Required to Solve the Cosmic Coincidence
• New holographic dark energy model with non-linear interaction
• Parameter estimation with Sandage-Loeb test
• Self accelerating solutions in a DGP brane with a scalar field trapped on it: the dynamical systems perspective
• A quantitative criteria for the coincidence problem