3 papers
astro-ph.SR2026
Beyond the Tayler instability: A new global instability of toroidal magnetic fields in stars
Mikhail E. Gusakov, Laura Becerra, Elena M. Kantor +2
Stellar toroidal magnetic fields are known to be unstable to the Tayler instability. Here we demonstrate the existence of a complementary current-driven instability of essentially…
astro-ph.HE2025
Instability windows of relativistic r-modes in stably stratified neutron stars with hyperonic cores
K. Y. Kraav, M. E. Gusakov, E. M. Kantor
(abridged) -modes are oscillations in rotating stars, primarily restored by the Coriolis force. These oscillations are the most susceptible to the Chandrasekhar-Friedman-Schutz…
astro-ph.HE2025
Magnetothermal evolution of neutron star cores in the `weak-coupling' regime: implications of ambipolar diffusion for the quiescent X-ray luminosity of magnetars
N. A. Moraga, F. Castillo, D. D. Ofengeim +5
The high quiescent X-ray luminosity observed in some magnetars is widely attributed to the decay and evolution of their ultra-strong magnetic fields. Several dissipation mechanisms…