Magnetic fields generated by r-modes in accreting millisecond pulsars
High Energy Astrophysical Phenomena
2014-11-20 v4 Solar and Stellar Astrophysics
Abstract
In rotating neutron stars the existence of the Coriolis force allows the presence of the so-called Rossby oscillations (r-modes) which are know to be unstable to emission of gravitational waves. Here, for the first time, we introduce the magnetic damping rate in the evolution equations of r-modes. We show that r-modes can generate very strong toroidal fields in the core of accreting millisecond pulsars by inducing differential rotation. We shortly discuss the instabilities of the generated magnetic field and its long time-scale evolution in order to clarify how the generated magnetic field can stabilize the star.
Cite
@article{arxiv.0905.3368,
title = {Magnetic fields generated by r-modes in accreting millisecond pulsars},
author = {Carmine Cuofano and Alessandro Drago},
journal= {arXiv preprint arXiv:0905.3368},
year = {2014}
}
Comments
6 pages, 5 figures. Revised and substantially extended version