5 citations · 15 across the 13 of their papers we have counts for
17 papers
Bayesian exploration of weakly interacting models of dark matter admixed neutron stars based on multi-density constraints
Payaswinee Arvikar, Prashant Thakur, Sarmistha Banik
We present a unified Bayesian analysis of Higgs-portal, neutron-decay, and axion-like-particle (ALP)-mediated dark matter in neutron stars within the single-fluid approximation. Us…
Fast Bayesian Updating of the Neutron-Star Equation of State with Neural Posterior and Evidence Estimation
Prashant Thakur
We present two complementary neural routes for microscopic neutron-star EOS inference: truncated sequential neural posterior estimation with mixture importance sampling (TSNPE+MIS)…
Dark matter in neutron stars: two-fluid -mode oscillations in full general relativity
Prashant Thakur, Ishfaq Ahmad Rather, Y. Lim
A dark-matter core and a soft nuclear equation of state can produce similar mass--radius signatures, motivating a complementary probe through the -mode spectrum. We compute quad…
Constraining hyperonic relativistic mean-field models with rapidly rotating neutron stars
Gihwan Nam, Prashant Thakur, Yeunhwan Lim +1
Motivated by the recent mass measurement of the black-widow pulsar PSR~J09520607 with , we investigate how the masses of heavy, rapidly rotating millisec…
Reaction-constrained composition \(g\)-modes in neutron stars with antikaon condensates, hyperons, and \(Δ(1232)\) resonances
Prashant Thakur, Ishfaq Ahmad Rather
We study core composition \(g_1\) modes of cold, nonrotating neutron stars containing antikaon condensates, hyperons, and \(Δ(1232)\) baryons and present, to our knowledge, the fir…
Amortized Simulation-Based Inference of Relativistic Mean-Field Couplings for Neutron-Star Equations of State
Prashant Thakur, Tuhin Malik
We present a simulation-based inference framework for constraining microscopic relativistic mean-field parameters of neutron-star equations of state. Neural posterior estimation is…
Rotational enhancement and stability of protoquark stars during thermal evolution
Adamu Issifu, Andreas Konstantinou, Prashant Thakur +1
We present the first systematic study of rigidly rotating protoquark stars based on isentropic equations of state (EOS) within the density-dependent quark mass (DDQM) framework. Us…
Dark Matter Heating in Evolving Proto-Neutron Stars: A Two-Fluid Approach
Adamu Issifu, Prashant Thakur, Davood Rafiei Karkevandi +4
Neutron stars (NSs) provide a unique laboratory to probe dark matter (DM) through its gravitational imprint on stellar evolution. We use a two-fluid framework with non-annihilating…
Probing Strange Dark Matter through -mode Oscillations of Neutron Stars with Hyperons and Quark Matter
Mahboubeh Shahrbaf, Prashant Thakur, Davood Rafiei Karkevandi
We investigate the impact of a hypothetical bosonic dark matter (DM) candidate, the sexaquark, on the fundamental (-mode) oscillations of neutron stars (NSs). By varying the DM…
Constraining Axion-Like Particle mediated Dark Matter with Observational Constraints: A Statistical and Machine Learning Approach
Prashant Thakur, Aravind Taridalu, Ishfaq Ahmad Rather +2
We present a comprehensive study of axion-like particle (ALP) mediated dark matter (DM) effects on neutron star (NS) structure within a relativistic mean-field framework with non-l…
Effect of Dark matter and -cut potential on radial and non-radial oscillation modes in neutron stars
Prashant Thakur, Ishfaq Ahmad Rather, Y. Lim
We study the mesonic nonlinear (NL) interaction equation of state (EoS) employing the relativistic mean-field model and investigate the effect of -cut potential (NL- cut) and…
Magnetized Proto-Neutron Stars: Structure and Stability
Harsh Chandrakar, Adamu Issifu, Prashant Thakur +2
We investigate the evolution of magnetized protoneutron stars (PNSs) through four schematic stages: neutrino trapped, deleptonization, neutrino transparent, and the final cold, cat…
Rotating Proto-Neutron Stars Admixed with Mirror Dark Matter: A two fluid approach
Adamu Issifu, Andreas Konstantinou, Prashant Thakur +1
This work investigates the impact of mirror dark matter (DM) on the global properties of rotating neutron stars (NSs) across evolutionary stages, from hot, lepton-rich protoneutron…
Radial and Non-Radial Oscillations of Protoneutron Stars with Hyperonic Composition
Prashant Thakur, Adamu Issifu, Ishfaq Ahmad Rather +2
This paper explores radial and non-radial oscillations of protoneutron stars (PNSs) as they evolve from hot, neutrino-rich configurations through deleptonization to cold, catalyzed…
Feasibility of Dark Matter in Neutron Stars: A Quantitative Analysis
Prashant Thakur
This thesis investigates the impact of dark matter on neutron star properties, focusing on mass, radius, and tidal deformability. Using two-fluid and single-fluid models, dark matt…
Supernova Remnants with Mirror Dark Matter and Hyperons
Adamu Issifu, Prashant Thakur, Franciele M. da Silva +5
For the first time, we use relativistic mean-field (RMF) approximation with density-dependent couplings, adjusted by the DDME2 parameterization, to investigate the effects of dark…
Non-Radial Oscillation Modes in Hybrid Stars with Hyperons and Delta Baryons
Ishfaq Ahmad Rather, Kau D. Marquez, Prashant Thakur +1
We study the effects of hyperons, delta baryons, and quark matter phase transitions on -mode oscillations in neutron stars. Using the density-dependent relativistic mean-field m…