Research

The role of adiabatic sound speeds in neutron star radial oscillations and stability

Authors:  Sayantan Ghosh, Tianqi Zhao, Bharat Kumar and Sailesh Ranjan Mohanty.

Journal: Journal of Cosmology and Astroparticle Physics.

DOI: https://doi.org/10.1088/1475-7516/2025/09/025.

Constraining the f-mode oscillations frequency in neutron stars through universal

relations in the realm of energy-momentum squared gravity

Author:  Sayantan Ghosh.

Journal: General Relativity and Gravitation.

DOI: https://doi.org/10.1007/s10714-025-03405-1.

Spacetime Curvature as a Probe of Exotic Core Phases in Neutron Stars within Modified

Gravity

Authors:  Sayantan Ghosh, Bharat Kumar and Subhash Mahapatra.

Journal: Physical Review D.

DOI: https://doi.org/10.1103/rjzl-pcr4.

Exploring the macroscopic properties of proto-neutron stars: Effects of entropy and

lepton fraction

Authors:  Sayantan Ghosh, Shahebaj Shaikh, Probit J. Kalita, Pinku Routaray, Bharat Kumar, B.K. Agrawal. 

Journal: Nuclear Physics, Section B.

DOI: https://doi.org/10.1016/j.nuclphysb.2024.116697.

Unstable anisotropic neutron stars: Probing the limits of gravitational collapse

Authors:  Sailesh Ranjan Mohanty, Sayantan Ghosh, and Bharat Kumar. 

Journal: Physical Review D.

DOI: https://doi.org/10.1103/PhysRevD.109.123039.

The impact of anisotropy on neutron star properties: insights from I–f –C universal

relations

Authors:  Sailesh Ranjan Mohanty, Sayantan Ghosh, Pinku Routaray, H.C. Das and Bharat Kumar.

Journal: Journal of Cosmology and Astroparticle Physics.

DOI:  https://doi.org/10.1088/1475-7516/2024/03/054.