From the 1 of 8 linked papers with an AI index.
8 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 paper introduces a physics‑informed conditional invertible neural network that directly maps NICER neutron‑star mass‑radius measurements to central energy density and pressure,…
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…
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…
Investigating Twin Star Equation of States in Light of Recent Astrophysical Observations
Shamim Haque, Atharva Shinde, Asim Kumar Saha +2
Twin stars 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 neutron star…
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…
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…