139 citations · 483 across the 7 of their papers we have counts for
7 papers
Instability of twisted magnetar magnetospheres
J. F. Mahlmann, T. Akgün, J. A. Pons +2
We present three-dimensional force-free electrodynamics simulations of magnetar magnetospheres that demonstrate the instability of certain degenerate, high energy equilibrium solut…
Crust-magnetosphere coupling during magnetar evolution and implications for the surface temperature
Taner Akgün, Pablo Cerdá-Durán, Juan Antonio Miralles +1
We study the coupling of the force-free magnetosphere to the long-term internal evolution of a magnetar. We allow the relation between the poloidal and toroidal stream functions -…
On the magnetic field evolution timescale in superconducting neutron star cores
Andrea Passamonti, Taner Akgün, José Pons +1
We revisit the various approximations employed to study the long-term evolution of the magnetic field in neutron star cores and discuss their limitations and possible improvements.…
Stability of magnetic fields in non-barotropic stars: an analytic treatment
Taner Akgün, Andreas Reisenegger, Alpha Mastrano +1
Magnetic fields in upper main-sequence stars, white dwarfs, and neutron stars are known to persist for timescales comparable to their lifetimes. From a theoretical perspective this…
Gravitational wave emission from a magnetically deformed non-barotropic neutron star
Alpha Mastrano, Andrew Melatos, Andreas Reisenegger +1
A strong candidate for a source of gravitational waves is a highly magnetised, rapidly rotating neutron star (magnetar) deformed by internal magnetic stresses. We calculate the mas…
Revisiting the Flowers-Ruderman instability of magnetic stars
Pablo Marchant, Andreas Reisenegger, Taner Akgün
In 1977, Flowers and Ruderman described a perturbation that destabilises a purely dipolar magnetic field in a fluid star. They considered the effect of cutting the star in half alo…
Toroidal Magnetic Fields in Type II Superconducting Neutron Stars
Taner Akgun, Ira Wasserman
We determine constraints on the form of axisymmetric toroidal magnetic fields dictated by hydrostatic balance in a type II superconducting neutron star with a barotropic equation o…