S E M I N A R IDepartament d'Astronomia i Astrofísica
Universitat de València
How relevant are barotropic models for magnetised neutron stars?
Universität Tübingen (Alemanya)
Seminari del departament d'Astronomia i Astrofísica
Dijous 23 febrer 2012
Many aspects of NS physics are sensitive to the internal structure of their magnetic fields, although we have no direct probe of these. Instead we rely on theoretical models, where the star is usually assumed to have a barotropic equation of state: pressure is a function of density alone. Many magnetic equilibria have been constructed in this way, and whilst some are known to be *unstable*, none have been proved stable - and hence good physical models. We discuss testing the stability of these candidate equilibria, in the search for an astrophysically relevant model of a NS's magnetic field.