3 papers
astro-ph.HE2026
The Role of the Core in Setting Massive Neutron-Star Radii
R. V. Lobato, J. E. Horvath, M. Malheiro
Recent observations by the Neutron Star Interior Composition Explorer (NICER) indicate that the massive pulsar PSR J0740+6620 () has a radius comparable to those i…
astro-ph.HE2026
A Physics Informed Bayesian Neural Network for the Neutron Star Equation of State
J. D. Baker, C. A. Bertulani, R. V. Lobato
We present a physics-informed Bayesian neural-network framework to infer neutron-star equations of state from theoretical priors and to propagate the associated uncertainties to st…
astro-ph.HE2026
Data-Driven Constraints on Magnetar Population: No Evidence for a Distinct White Dwarf Channel
R. V. Lobato
Magnetars are usually interpreted as highly magnetized neutron stars, yet a small subset of low spin-down sources has motivated alternative scenarios involving highly magnetized wh…