4 papers
New Universal Relations for Magnetized Neutron Stars
Byon N. Jayawiguna, Siddarth Ajith, Takuya Katagiri +2
Unlike the neutron-star mass--radius relation, which depends sensitively on the internal stellar structure through the equation of state of dense nuclear matter, certain neutron-st…
Ambiguity in matter sector for modified gravity involving and its implications to astrophysics and cosmology
B. N. Jayawiguna, A. Sulaksono
Matter density () and radial pressure () are often used as the matter Lagrangian density () because both are thermodynamically consistent and produce the sam…
Slowly Rotating and Tidal Deformation of Nonlocal Modified Tolman VII Star
Byon N. Jayawiguna, Piyabut Burikham
We investigate the moment of inertia, quadrupole deformation, and tidal deformation within the framework of nonlocal gravity, utilizing the exact modified Tolman-VII (NEMTVII) dens…
Horizonless star based on regular black hole with finite radius and its observational signatures
M. F. Fauzi, B. N. Jayawiguna, H. S. Ramadhan +1
The horizonless configuration of regular black holes has recently attracted attention as a model for ultracompact stars. In this paper, we propose a new class of regular black hole…