1 citations · 1 across the 9 of their papers we have counts for
9 papers
Constraining the High-Density Equation of State with Present and Future NICER Observations Using Physics-Informed Regularized Machine Learning
Utkarsh Atul Deshmukh, Asim Kumar Saha, Ritam Mallick
The precise mass and radius measurements of neutron stars by NICER have significantly advanced our ability to constrain the properties of matter at supranuclear densities. In this…
Neutron stars with an agnostic Dark sector: Core and Halo configurations from a two-fluid approach
Asit karan, Asim Kumar Saha, Tuhin Malik +2
The study of dark matter admixed neutron stars has the potential to advance our understanding of dark matter particle candidates. However, the large parameter space of dark matter…
Constraining Twin-Star Existence in Four-Parameter Maxwell Equation of State
Shamim Haque, Atharva Shinde, Asim Kumar Saha +2
Twin stars (TSs) are predicted to exist in nature if the hadron-to-quark phase transition is strong enough to form a new branch of hybrid stars, separated from the branch of neutro…
Curvature Effect on the Speed of Sound
Anshuman Verma, Asim Kumar Saha, Ritam Mallick
The speed of sound refers to the rate at which information travels from one point to another. It is a positive quantity and bounded by causality. It is defined as the rate of chang…
Are NICER and GW170817 constraints suggesting a compactified scenario for Neutron stars?
Asim Kumar Saha, Tuhin Malik, Ritam Mallick
Astrophysical observations from NICER and gravitational wave data constrain the properties of matter at the cores of neutron stars, enabling us to probe high-density matter with gr…
Probing the Internal Structure of Neutron Stars: A Comparative Analysis of Three Different Classes of Equations of State
Anshuman Verma, Asim Kumar Saha, Tuhin Malik +1
Sound speed can be an important tool in unraveling the nature of matter that exists at the cores of neutron stars. In this study, we investigate three major classes of equations of…
Comparison of Equations of State for Neutron Stars with First-Order Phase Transitions: A Qualitative Study
Anshuman Verma, Asim Kumar Saha, Ritam Mallick
The equation of state is fundamental in describing matter under the extreme conditions characteristic of neutron stars and is central to advancing our understanding of dense matter…
Causality and perturbative-QCD constraints on first-order phase transitions in neutron stars
Asim kumar Saha, Ritam Mallick
Causality bounds the compactness and maximum mass of neutron stars. We generalise this bound to equations of state (EOSs) with a first-order phase transition between maximally stif…
The prospect of confining the equation of state of neutron star with future mass and radius measurement
Asim Kumar Saha, Ritam Mallick
Simultaneous measurement of mass and radius with high precision is essential to unravel the equation of state of matter at the centre of neutron stars. Measurement of massive pulsa…