38 citations · 278 across the 20 of their papers we have counts for
20 papers
Sensitivity of the Neutron Star Equation of State Inferences to Mass and Radius Measurements
Dmitry D. Ofengeim, Peter S. Shternin, Tsvi Piran
We examine how inferences of the neutron-star equation of state depend on mass and radius observations. We update previous results with recent measurements combined with theoretica…
The 300 TeV photon from GRB 221009A: a Hint at Non-linear Lorentz Invariance Violation?
Dmitry D. Ofengeim, Tsvi Piran
The air shower array Carpet-3 detected a 300 TeV photon from the direction of GRB 221009A at 4536 s after the Fermi-GBM trigger for this event. If the association with this gamma-r…
Magnetothermal evolution of neutron star cores in the `weak-coupling' regime: implications of ambipolar diffusion for the quiescent X-ray luminosity of magnetars
N. A. Moraga, F. Castillo, D. D. Ofengeim +5
The high quiescent X-ray luminosity observed in some magnetars is widely attributed to the decay and evolution of their ultra-strong magnetic fields. Several dissipation mechanisms…
Constraining the curvature-induced quantum gravity scales via gamma-ray bursts
Dmitry D. Ofengeim, Tsvi Piran
We constrain the parameters that govern curvature-induced quantum gravity time-of-flight (TOF) effects. These TOF delays, which occur due to modified dispersion relations of partic…
A three-parameter characterization of neutron stars' mass-radius relation and equation of state
Dmitry D. Ofengeim, Peter S. Shternin, Tsvi Piran
Numerous models of neutron star (NS) equation of state (EoS) exist based on different superdense-matter physics approaches. Nevertheless, some NS properties show universal (EoS-ind…
Maximal Mass Neutron Star as a Key to Superdense Matter Physics
D. D. Ofengeim, P. S. Shternin, T. Piran
We propose a universal approximation of the equation of state of superdense matter in neutron star (NS) interiors. It contains only two parameters, the pressure and the density at…