45 citations · 113 across the 8 of their papers we have counts for
8 papers
Gravitational Clustering in Redshift Space: Non-Gaussian Tail of the Cosmological Density Distribution Function
J. S. Bagla, Suryadeep Ray
We study the non-Gaussian tail of the probability distribution function of density in cosmological N-Body simulations for a variety of initial conditions. We compare the behaviour…
Power transfer in nonlinear gravitational clustering and asymptotic universality
T. Padmanabhan, Suryadeep Ray
We study the non linear gravitational clustering of collisionless particles in an expanding background using an integro-differential equation for the gravitational potential. In pa…
Comments on the size of the simulation box in cosmological N-Body simulations
J. S. Bagla, Suryadeep Ray
N-Body simulations are a very important tool in the study of formation of large scale structures. Much of the progress in understanding the physics of high redshift universe and co…
Gravitational Collapse in an Expanding Universe: Scaling Relations for Two-Dimensional Collapse Revisited
S. Ray, J. S. Bagla, T. Padmanabhan
We investigate non-linear scaling relations for two-dimensional gravitational collapse in an expanding background using a 2D TreePM code and study the strongly non-linear regime ($…
Gravitational collapse in an expanding background and the role of substructure I: Planar collapse
J. S. Bagla, Jayanti Prasad, Suryadeep Ray
We study the interplay of clumping at small scales with the collapse and relaxation of perturbations at much larger scales. We present results of our analysis when the large scale…
TreePM Method for Two-Dimensional Cosmological Simulations
Suryadeep Ray
We describe the two-dimensional TreePM method in this paper. The 2d TreePM code is an accurate and efficient technique to carry out large two-dimensional N-body simulations in cosm…