X-ray pulse profile modeling of PSR J 0740+ 6620, the most massive known pulsar, with data from the NICER and XMM-Newton observatories recently led to a measurement of its …
Observations of neutron stars, whether in binaries or in isolation, provide information about the internal structure of the most extreme material objects in the Universe. In this work, we …
The general behavior of the nuclear equation of state (EOS), relevant for the description of neutron stars (NSs), is studied within a Bayesian approach applied to a set of models based …
The impact of anisotropic pressure models in neutron stars (NSs) is increasing their compactness. Therefore, for the relatively soft NS equation of state (EOS), we can still obtain …
The possible signatures of the presence of hyperons inside neutron stars are discussed within a Bayesian inference framework applied to a set of models based on a density …
We point out that there is an upper bound on the speed of sound squared given by cs 2≤ 0.781 valid for all known systems described by relativistic transient hydrodynamics where …
We investigate the possibility that GW170817 was not the merger of two conventional neutron stars (NS), but involved at least one if not two hybrid stars with a quark matter core …
T Miyatsu, MK Cheoun, K Kim, K Saito - Physics Letters B, 2023 - Elsevier
We construct new effective interactions using the relativistic mean-field models with the isoscalar-and isovector-meson mixing, σ 2 δ 2 and ω μ ω μ ρ ν ρ ν. Taking into account the …
The impacts of various symmetry energy parameters on the properties of neutron stars (NSs) have been recently investigated, and the outcomes are at variance, as summarized in Table …