3D modelling of magneto-thermal evolution of neutron stars: method and test cases

Understand

Neutron stars harbour extremely strong magnetic fields within their solid outer crust.

• The topology of this field strongly influences the surface temperature distribution, and hence the star's observational properties.
• In this work, we present the first realistic simulations of the coupled crustal magneto-thermal evolution of isolated neutron stars in three dimensions with account for neutrino emission, obtained with the pseudo-spectral code Parody.
• We investigate both the secular evolution, especially in connection with the onset of instabilities during the Hall phase, and the short-term evolution following episodes of localised energy injection.