Excitation Magnetohydrodynamic Wave by Gravitational Wave Produced by Binary of Neutron Stars
Abstract
The gravitational wave, through the strongly magnetized plasma surrounding the neutron stars, in the zz-direction, deforms plasma particle rings in ellipses, alternating axes periodically along the direction of the magnetic field (xx-axis) and of the yy-axis. The uniform field leads to a modulation of the magnetic field, which results in magnetic pressure gradients (magneto-acoustic mode) or in the shear of the magnetic field lines (Alfvén mode). The gravitational wave drives MHD modes and transfers energy to the plasma, can become an important alternative process for the acceleration of baryons to high Lorentz factors observed in short GRBs. The total amount of energy that is transferred from the gravitational wave to the plasma is estimated (≃1040≃1040J - 10411041 J), with γ≃102γ≃102. We compare our results with previously obtained results by other works.
