92 citations · 409 across the 6 of their papers we have counts for
6 papers
Coupled polar-axial magnetar oscillations
A. Colaiuda, K. D. Kokkotas
We study coupled axial and polar axisymmetric oscillations of a neutron star endowed with a strong magnetic field, having both poloidal and toroidal components. The toroidal compon…
Magnetars oscillations in the presence of a crust
Antonella Colaiuda, Kostas D. Kokkotas
We study axisymmetric perturbations of neutron star endowed with a strong magnetic field (magnetars), considering the coupled oscillations of the fluid core with the solid crust. W…
On the Quasi-Periodic Oscillations of Magnetars
A. Colaiuda, H. Beyer, K. D. Kokkotas
We study torsional Alfvén oscillations of magnetars, i.e., neutron stars with a strong magnetic field. We consider the poloidal and toroidal components of the magnetic field and a…
Relativistic models of magnetars: structure and deformations
A. Colaiuda, V. Ferrari, L. Gualtieri +1
We find numerical solutions of the coupled system of Einstein-Maxwell's equations with a linear approach, in which the magnetic field acts as a perturbation of a spherical neutron…
Constraints on the Magnetic Field Geometry of Magnetars
H. Sotani, A. Colaiuda, K. D. Kokkotas
We study the effect of the magnetic field geometry on the oscillation spectra of strongly magnetized stars. The magnetic field distributions include both toroidal and poloidal cont…
Gamma rays precursors and afterglows surrounding UHECR events: Z-burst model is still alive
D. Fargion, A. Colaiuda
The Z-burst model and the direct propagation of UHE proton in negligible extragalactic magnetic fields produce gamma-rays afterglows and precursors halos, respectively at GeVs and…