activity
19962025
most citedConstraining cosmic curvature by using age of galaxies and gravitational lenses

72 citations · 285 across the 29 of their papers we have counts for

collaborators

29 papers

astro-ph.GA2025★ 2 cited

Study of Various Dark Matter Halo Profiles in Milky Way and M31 Galaxies within the Standard Cosmology Framework

Darshan Kumar, Nisha Rani, Deepak Jain +2

In this paper, we study the rotation curves of the Milky Way galaxy (MW) and Andromeda galaxy (M31) by considering their bulge, disk, and halo components. We model the bulge region…

astro-ph.CO2022★ 20 cited

Gamma Rays Bursts: A Viable Cosmological Probe?

Darshan Kumar, Nisha Rani, Deepak Jain +2

In this work, our focus is on exploring the potential of current GRB measurements to provide reliable constraints on cosmological model parameters at high redshift. This work is di…

astro-ph.CO2022★ 11 cited

Constraints on the Transition Redshift using Hubble Phase Space Portrait

Darshan Kumar, Deepak Jain, Shobhit Mahajan +2

One of the most significant discoveries in modern cosmology is that the universe is currently in a phase of accelerated expansion after a switch from a decelerated expansion. The r…

astro-ph.CO2021★ 19 cited

A non-parametric test of variability of Type Ia supernovae luminosity and CDDR

Darshan Kumar, Akshay Rana, Deepak Jain +3

The first observational evidence for cosmic acceleration appeared from Type Ia supernovae (SNe Type Ia) Hubble diagram from two different groups. However, the empirical treatment o…

astro-ph.CO2020★ 15 cited

Constraining Cosmological and Galaxy Parameters using Strong Gravitational Lensing Systems

Darshan Kumar, Deepak Jain, Shobhit Mahajan +2

Strong gravitational lensing along with the distance sum rule method can constrain both cosmological parameters as well as density profiles of galaxies without assuming any fiducia…

astro-ph.CO2018★ 19 cited

Bounds on graviton mass using weak lensing and SZ effect in galaxy clusters

Akshay Rana, Deepak Jain, Shobhit Mahajan +1

In General Relativity (GR), the graviton is massless. However, a common feature in several theoretical alternatives of GR is a non-zero mass for the graviton. These theories can be…