Now showing items 1-4 of 4

    • Hall equilibria with toroidal and poloidal fields: application to neutron stars 

      Gourgouliatos, K. N.; Cumming, A.; Reisenegger, A.; Armaza, C.; Lyutikov, M.; Valdivia Hepp, Juan (OXFORD UNIV PRESS, 2013-09)
      We present solutions for Hall equilibria applicable to neutron star crusts. Such magnetic configurations satisfy a Grad–Shafranov-type equation, which is solved analytically and numerically. The solutions presented cover ...
    • Instability of magnetic equilibria in barotropic stars 

      Mitchell, J. P.; Braithwaite, J.; Reisenegger, A.; Spruit, H.; Valdivia Hepp, Juan; Langer, N. (Oxford University Press, 2015)
      In stably stratified stars, numerical magnetohydrodynamics simulations have shown that arbitrary initial magnetic fields evolve into stable equilibrium configurations, usually containing nearly axisymmetric, linked ...
    • Magnetic field evolution and equilibrium configurations in neutron star cores: the effect of ambipolar diffusion 

      Castillo, F.; Reisenegger, A.; Valdivia Hepp, Juan (Oxford University Press, 2017)
      As another step towards understanding the long-term evolution of the magnetic field in neutron stars, we provide the first simulations of ambipolar diffusion in a spherical star. Restricting ourselves to axial symmetry, ...
    • Magnetohydrodynamic equilibria in barotropic stars 

      Armaza, C.; Reisenegger, A.; Valdivia Hepp, Juan; Marchant, P. (2013)
      Although barotropic matter does not constitute a realistic model for magnetic stars, it would be interesting to con rm a recent conjecture that states that magnetized stars with a barotropic equation of state would ...