Alfv\'en-wave turbulence has emerged as an important heating mechanism to accelerate the solar wind. The generation of this turbulent is dependent on presence and subsequent interaction counter-propagating alfv\'en waves. This requires us understand propagation evolution waves in wind order develop understanding relationship between solar-wind parameters. We aim study response upon injecting mo...

We study the gravitational-wave background produced by f-mode oscillations of neutron stars triggered magnetar giant flares. For energy, we use analytic formulae obtained via general relativistic magnetohydrodynamic simulations strongly magnetized stars. Assuming flare rate is proportional to star-formation rate, show signal likely undetectable third-generation detectors such as Einstein Telesc...

Magnetohydrodynamic (MHD) waves are widely considered as a possible source of heating for various parts of the outer solar atmosphere. Among the main energy dissipation mechanisms which convert the energy of damped MHD waves into thermal energy are collisional dissipation (resistivity) and viscosity. The presence of neutral atoms in the partially ionized plasmas of the solar photosphere, chromo...

Aims. The theoretical model for magnetohydrodynamic (MHD) modes guided by a field-aligned plasma cylinder with a steady flow is adapted to interpret transverse waves observed in solar coronal hot jets, discovered with Hinode/XRT in terms of fast magnetoacoustic kink modes. Methods. Dispersion relations for linear magnetoacoustic perturbations of a plasma jet of constant cross-section surrounded...

Linear magnetohydrodynamic instabilities are studied analytically in the case of unbounded inviscid and electrically conducting flows that are submitted to both rotation and precession with shear in an external magnetic field. For given rotation and precession the possible configurations of the shear and of the magnetic field and their interplay are imposed by the "admissibility" condition (i.e...