97 citations · 358 across the 14 of their papers we have counts for
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astro-ph2008★ 42 cited
Can cosmological observations uniquely determine the nature of dark energy ?
Sanil Unnikrishnan
The observational effect of all minimally coupled scalar field models of dark energy can be determined by the behavior of the following two parameters : (1) equation of state param…
astro-ph2008★ 47 cited
Scalar Field Dark Energy Perturbations and their Scale Dependence
Sanil Unnikrishnan, H. K. Jassal, T. R. Seshadri
We estimate the amplitude of perturbation in dark energy at different length scales for a quintessence model with an exponential potential. It is shown that on length scales much s…
astro-ph2005
Some Consequences of Dark Energy Density varying Exponentially with Scale Factor
Sanil Unnikrishnan, T. R. Seshadri
In this paper we have explored the consequences of a model of dark energy with its energy density varying exponentially with the scale factor. We first consider the model with $ ρ_…