Comment on ‘ ‘ Role of dispersive Alfvén waves in generating parallel electric fields along the Io - Jupiter fluxtube ’ ’ by S .

Comment on ‘‘Role of dispersive Alfvén waves in generating parallel electric fields along the Io-Jupiter fluxtube’’ by S. T. Jones

[1] The authors of a recent paper [Jones and Su, 2008] have used two-fluid plasma theory [e.g., Streltsov et al., 1998] to predict the parallel electric field strength of a shear Alfvén wave traveling through the Jovian magnetosphere from the vicinity of Io to the Jovian ionosphere. [2] Two-fluid analyses give adequate predictions for the parallel electric field strength Ek in plasma regimes wh...

Comment on 'Role of dispersive Alfvén waves in generating parallel electric fields

Electromagnetic interaction between Jupiter’s ionosphere and the Io Plasma torus

The electromagnetic interaction between Jupiter and Io has been studied extensively since the discovery of Io-controlled decametric radio emissions (DAMs). A variety of mechanisms for electromagnetic disturbances have been considered including a unipolar inductor, the excitation of large-amplitude Alfvén waves, the generation of electrostatic electric fields parallel to the ambient magnetic fie...

Generation of Alfvén Waves by Small-Scale Magnetic Reconnection in Solar Spicules

Alfvén waves dissipation is an extensively studied mechanism for the coronal heating problem. These waves can be generated by magnetic reconnection and propagated along the reconnected field lines. Here, we study the generation of Alfvén waves at the presence of both steady flow and sheared magnetic field in the longitudinally density stratified of solar spicules. The initial flow is assumed to...

Explanation of dominant oblique radio emission at Jupiter and comparison to the terrestrial case

The Io-Jupiter S-bursts are series of quasi-periodic impulsive decameter radio emissions from the magnetic flux tube connecting Jupiter to its closest galilean satellite Io. This paper discusses the possibility, suggested by previous works by Hess et al, that the S-bursts are triggered by upgoing electrons accelerated (downward) by trapped Alfvén waves, that have mirrored above the Jupiter iono...