The Sun’s Fast Dynamo Action

Abstract

We provide a synthesis model demonstrating the "fast dynamo" action of the Sun. The latter is essentially accomplished via two toroidal structures presumably formed in the tachocline and placed symmetrically with respect to the equatorial plane. The two tori are characterized by several prominent key-properties as follows: First, in each "Torus" a surplus charge is entrapped for approximately the time period of an 11-year sunspot cycle; for the next cycle the charge changes sign. Second, the net charge of Torus, moving with the solar rotational speed, generates a huge toroidal current which, in turn, builds up an intense poloidal magnetic field. Third, each Torus is placed at a specific distance from the Radiative Zone, so that the rotational speed (u φ ) of an entrapped charge carrier equals the local propagation velocity for an electromagnetic disturbance (c‫.)׳‬ Thus, two Torus electrons satisfy the condition that the repulsive electrostatic force equals the attractive magnetic force caused from the two elementary currents. Fourth, the surplus charge can steadily and unanticipatedly increase; electrons are systematically attracted inwards or repealed outwards via the poloidal field. The charges remain without any "Debye shielding" action in the Torus-core region, while they demonstrate a "Debye anti-shielding effect" closer to the Radiative Zone (where u φ >c‫.)׳‬ Thus, the Torus charge "moves" with zero resistivity and velocity ~1500 m/s, i.e. the Sun's rotational speed. The Torus core region behaves like a gigantic "superconductor" at the extremely high temperatures of tachocline. Fifth, the tori move equatorward drifting on a surface being an ellipsoid by revolution on which the condition u φ =c‫׳‬ is satisfied. At the end of an 11-year cycle, the tori finally disintegrate close to the equatorial plane, given that their toroidal magnetic field lines are oppositely directed. Moreover, we present a preliminary 3D solar circuit, for the overall 22-year cycle, with the ability to reverse the magnetic field. If the suggested model is accepted as a workable solution, then many longstanding unresolved questions concerning the powerful CMEs, the flares, the electron acceleration mechanism and the stellar dynamo could be readily addressed.

The Major Geoeffective Solar Eruptions of 2012 March 7: Comprehensive Sun-to-Earth Analysis

“…The polarity of the rope, given by the sign of B y , is positive, and this is probably dictated by the southward satellite motion. The latter is in agreement with a recent suggestion by Sarafopoulos (2014), in which the present rope seems to correspond to an ion vortex, which essentially corresponds to an anticlockwise flowing current. The typical duration of the MFR structures, embedded in tailward plasma flows, is 1-2 minutes at distances 20-30 R E (Sarafopoulos 2014).…”

“…The latter is in agreement with a recent suggestion by Sarafopoulos (2014), in which the present rope seems to correspond to an ion vortex, which essentially corresponds to an anticlockwise flowing current. The typical duration of the MFR structures, embedded in tailward plasma flows, is 1-2 minutes at distances 20-30 R E (Sarafopoulos 2014). For the present, distant-tail MFR, its duration is ∼5 minutes, from 11:37 to 11:42 UT, and its length along the tail is about 30 R E .…”