10 citations · 15 across the 12 of their papers we have counts for
14 papers
Parameter Constraints on Gravity from Exotic Compact Objects
S. Wilhelmina, B. N. Jayawiguna, A. Sulaksono
According to General Relativity (GR), gravity is described as the curvature of spacetime caused by mass and energy. Although GR has been highly successful in describing gravitation…
Axial Perturbations of Extended Tolman III in the New Theory
B. N. Jayawiguna, G. A. Sabian, H. S. Ramadhan +1
We investigate compact objects using the extended Tolman III equation of state in the framework of gravity. In the matter sector of the Lagrangian density, we employ…
Non-extensive entropy signatures in compact star
B. N. Jayawiguna, M. H. Al Ghifari, A. Rohim +1
The non-extensive entropy models applied to the black-hole horizon are connected to the generalized Einstein--Hilbert action, , via the Wald entropy formalism. We demonstrate…
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…
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…
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…
Spherical orbits around Kerr-Newman and Ghosh black holes
A. S. Alam, L. C. Andaru, B. N. Jayawiguna +1
We conduct a comprehensive study on spherical orbits around two types of black holes: Kerr-Newman black holes, which are charged, and Ghosh black holes, which are nonsingular. In t…
Gravitational Perturbation in Nonlocal Modified Tolman VII Model
Byon N. Jayawiguna, Piyabut Burikham
In comparison to the original Tolman VII model, Exact Modified Tolman VII (EMTVII) with one additional parameter can increase the compactness of compact object. When the compactnes…
Thermodynamics of EiBI-AdS black holes with global monopole
A. M. Kusuma, B. N. Jayawiguna, H. S. Ramadhan
It is well-known that black hole can be endowed with topological charge coming as a result of phase transition(s) in the early universe. It has also recently been revealed that suc…
Bound orbits around charged black holes with exponential and logarithmic electrodynamics
A S. Habibina, B. N. Jayawiguna, H. S. Ramadhan
We present exact black hole solutions endowed with magnetic charge coming from exponential and logarithmic nonlinear electrodynamics (NLED). Classically, we analyze the null and ti…
A Nonsingular Kerr-Sen Black Hole
Byon N. Jayawiguna
We present a novel solution describing four dimensional rotating regular charged black hole in the low energy heterotic string theory. This present solution is characterized by its…
Three Dimensional Black Hole in the Low Energy Heterotic String Theory
Byon N. Jayawiguna
We study the BTZ black holes (2+1 dimensional space-time) in the low energy heterotic string theory (BTZ-Sen BH). This concept requires us to include a non-trivial dilaton and…
Charged black holes in higher-dimensional Eddington-inspired Born-Infeld gravity
Byon N. Jayawiguna, Handhika S. Ramadhan
We study static (electrically)-charged solutions of Eddington-inspired Born-Infeld (EiBI) theory of gravity in general -dimensional spacetime. We consider both linear (Maxwell)…