Evolution of superhigh magnetic fields of magnetars
arXiv:1312.2728 · doi:10.1007/s10509-011-0664-3
Abstract
In this paper, we consider the effect of Landau levels on the decay of superhigh magnetic fields of magnetars. Applying ${}^3P_2$ anisotropic neutron superfluid theory yield a second-order differential equation for a superhigh magnetic field $B$ and its evolutionary timescale $t$. The superhigh magnetic fields may evolve on timescales $\sim (10^{6}-10^{7})$ yrs for common magnetars. According to our model, the activity of a magnetar may originate from instability caused by the high electron Fermi energy.
8 Pages, 3 Figures, Published in Astrophys. Space. Sci. 2011. 333, p.427-435