8 papers
Massive cold hybrid stars in a modified Polyakov-Nambu-Jona-Lasinio model
Sk Md Adil Imam, Pedro Costa, Mariana Dutra +3
We propose a modified Polyakov-loop Nambu--Jona-Lasinio (mPNJL) model in which the Polyakov potential is given by an explicit dependence on the quark chemical potential, allowing i…
Dense Matter in Neutron Stars with eXTP
Ang Li, Anna L. Watts, Guobao Zhang +82
In this White Paper, we present the potential of the enhanced X-ray Timing and Polarimetry (eXTP) mission to constrain the equation of state of dense matter in neutron stars, explo…
Constraints on maximum neutron star mass from proto-neutron star evolution
Deepak Kumar, Tuhin Malik, Hiranmaya Mishra +1
A proto-neutron star (PNS) gets formed after a successful supernova when the stellar remnant decouples from the ejecta. In this study, we explore a relativistic framework for the f…
Detecting Hyperons in neutron stars -- a machine learning approach
Valéria Carvalho, Márcio Ferreira, Constança Providência
We present a neural network classification model for detecting the presence of hyperonic degrees of freedom in neutron stars. The models take radii and/or tidal deformabilities as…
Constraining a relativistic mean field model using neutron star mass-radius measurements II: Hyperonic models
Chun Huang, Laura Tolos, Constança Providência +1
We investigate whether measurements of the neutron star mass and radius or the tidal deformability can provide information about the presence of hyperons inside a neutron star. Thi…
Constraining the high-density behavior of nuclear symmetry energy with direct Urca processes
Olfa Boukari, Tuhin Malik, Aziz Rabhi +1
The density dependence of the symmetry energy in relativistic mean-field models with density dependent couplings is discussed in terms of the possible opening of nucleonic direct U…