3 papers
astro-ph.HE2026
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…
astro-ph.HE2025
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…
gr-qc2025
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…