480 citations · 6k across the 156 of their papers we have counts for
157 papers
Dyonic Simpson Visser black-bounce spacetime surrounded by an exotic Einstein cluster in general relativity
Pedro Cañate, Joseph Sultana, Demosthenes Kazanas
In this work, we present the Simpson-Visser black-bounce (SV-BB) spacetime with both electric and magnetic charges (the dyonic SV-BB) as an exact solution of general relativity cou…
A Comprehensive Interpretation of Fermi-LAT Pulsars: Fundamental-Plane Death Border, Visibility Thresholds, and GeV-TeV Unification
Constantinos Kalapotharakos, Zorawar Wadiasingh, Alice K. Harding +2
We present a framework that links equatorial-current-sheet (ECS) physics to catalog-level, phase-averaged gamma-ray pulsar properties. Guided by analytic scalings and particle-in-c…
Magnetosphere Evolution and Precursor-Driven Electromagnetic Signals in Merging Binary Neutron Stars
Dimitrios Skiathas, Constantinos Kalapotharakos, Zorawar Wadiasingh +3
We detail new force-free simulations to investigate magnetosphere evolution and precursor electromagnetic (EM) signals from binary neutron stars. Our simulations fully follow a rep…
Pioneering High-Speed Pulsar Parameter Estimation Using Convolutional Neural Networks
Greg Olmschenk, Emily Broadbent, Constantinos Kalapotharakos +5
Accurate thermal emission models of neutron stars are essential for constraining the dense matter equation of state. However, incorporating realistic magnetic field structures is c…
Dual Role of Accretion Disk Winds as X-ray Obscurers and UV Line Absorbers in AGN
Keigo Fukumura, Missagh Mehdipour, Ehud Behar +5
X-ray obscuration of active galactic nuclei (AGNs) is considered in the context of ionized winds of stratified structure launched from accretion disks. We argue that a Compton-thic…
Gravitational Waves from the Pulsar Magnetosphere
Ioannis Contopoulos, Demosthenes Kazanas, Demetrios B. Papadopoulos
We investigate the generation of gravitational waves from the rotation of an orthogonal pulsar magnetosphere in flat space time. We calculate the first order metric perturbation du…