5 papers
Perturbations In Some Dark Energy Models
Srijita Sinha
Dark energy is the candidate that can produce effective negative pressure and make the galaxies and galaxy clusters move away from each other in an accelerated way. The structures…
Differentiating dark interactions with perturbation
Srijita Sinha
A cosmological model with an energy transfer between dark matter (DM) and dark energy (DE) can give rise to comparable energy densities at the present epoch. The present work deals…
Perturbations in a scalar field model with virtues of CDM
Srijita Sinha, Narayan Banerjee
In the era of precision cosmology, the cosmological constant gives quite an accurate description of the evolution of the Universe, but it is still plagued with the fine-tuning…
Density perturbation in an interacting holographic dark energy model
Srijita Sinha, Narayan Banerjee
The present work deals with the evolution of the density contrasts for a cosmological model where along with the standard cold dark matter (CDM), the present Universe also contains…
Density perturbation in the models reconstructed from jerk parameter
Srijita Sinha, Narayan Banerjee
The present work deals with the late time evolution of the linear density contrast in the dark energy models reconstructed from the jerk parameter. It is found that the non-interac…