75 citations · 425 across the 18 of their papers we have counts for
12 papers · 1 filter
Equation of state at neutron-star densities and beyond from perturbative QCD
Oleg Komoltsev, Rahul Somasundaram, Tyler Gorda +3
We explore the consequences of imposing robust thermodynamic constraints arising from perturbative Quantum Chromodynamics (QCD) when inferring the dense-matter equation-of-state (E…
Probing Quarkyonic Matter in Neutron Stars with the Bayesian Nuclear-Physics Multi-Messenger Astrophysics Framework
Peter T. H. Pang, Lars Sivertsen, Rahul Somasundaram +5
The interior of neutron stars contains matter at the highest densities realized in our Universe. Interestingly, theoretical studies of dense matter, in combination with the existen…
Relativistic Hartree-Fock Chiral Lagrangians with confinement, nucleon finite size and short-range effects
M. Chamseddine, J. Margueron, G. Chanfray +2
A relativistic Hartree-Fock Lagrangian including a chiral potential and nucleon polarisation is investigated in hopes of providing a better description of dense nuclear matter. We…
Nuclear incompressibility and sound speed in uniform matter and finite nuclei
Guilherme Grams, Rahul Somasundaram, Jerome Margueron +1
We have extended the compressible liquid-drop model (CLDM) with a density-dependent surface term (eCLDM), which allows for a unified description of both the nuclear ground state en…
Neutron star crust properties: comparison between the compressible liquid-drop model and the extended Thomas-Fermi approach
Guilherme Grams, Jerome Margueron, Rahul Somasundaram +2
We present a detailed analysis of three models predicting the properties of non-uniform matter in the crust of neutron stars: the compressible liquid-drop model, the fourth order E…
Perturbative QCD and the Neutron Star Equation of State
Rahul Somasundaram, Ingo Tews, Jérôme Margueron
We construct a physics-agnostic approach to the neutron star (NS) equation of state (EoS) based on a sound speed model, which connects both low-density information from nuclear the…
Confronting a set of Skyrme and predictions for the crust of neutron stars
Guilherme Grams, Jérôme Margueron, Rahul Somasundaram +1
With the improved accuracy of neutron star observational data, it is necessary to derive new equation of state where the crust and the core are consistently calculated within a uni…
Investigating Signatures of Phase Transitions in Neutron-Star Cores
Rahul Somasundaram, Ingo Tews, Jérôme Margueron
Neutron stars explore matter at the highest densities in the universe such that their inner cores might undergo a phase transition from hadronic to exotic phases, e.g., quark matte…
Properties of the neutron star crust: Quantifying and correlating uncertainties with improved nuclear physics
G. Grams, R. Somasundaram, J. Margueron +1
A compressible liquid-drop model (CLDM) is used to correlate uncertainties associated with the properties of the neutron star (NS) crust with theoretical estimates of the uncertain…
Properties of neutron star crust with improved nuclear physics: Impact of chiral EFT interactions and experimental nuclear masses
Grams, G., Margueron +5
A compressible liquid-drop approach adjusted to uniform matter many-body calculations based on chiral EFT interactions and to the experimental nuclear masses is used to investigate…
Comparison of different relativistic models applied to dense nuclear matter
R. Somasundaram, J. Margueron, G. Chanfray +1
We explore three different classes of relativistic approaches applied to the description of dense nuclear matter: a Walecka-type relativistic mean field model (RMF), an extension i…
Constraints on the nuclear symmetry energy from asymmetric-matter calculations with chiral NN and 3N interactions
R. Somasundaram, C. Drischler, I. Tews +1
The nuclear symmetry energy is a key quantity in nuclear (astro)physics. It describes the isospin dependence of the nuclear equation of state (EOS), which is commonly assumed to be…