Brigit wrote: ↑Sun Jan 31, 2021 11:00 pm
We know that plasmas of different characteristics can separate themselves in this way. But in the case of the sun's heliosheath, did they?
Yes; they do. I'm reminded of that Indiana Jones movie where his cohort said
"They're digging in the wrong place". Dynamics at Earth and its magnetospheric interactions with the solar wind may provide clues to dynamics of the Sun and heliosphere relative to its interactions with the VLISM external environment. The basic principle is the same ie a charged celestial body moving through a charged environment that is itself in motion. Researches and probes have observed a feature that has been dubbed
"Energetic Particle Precipitation" (EPP):
Electron Precipitation (apply dynamic to nose of heliosphere)
The way it works is: Geomagnetic Storms 'inject' energetic solar wind particles into Earth's magnetosphere, particularly into the Van Allen Radiation Belts. Simultaneously said storm decreases the extent of Earth's Plasmasphere and "shrinks" what is referred to as the "Slot Region". Previous to such a storm the energetic particles in the "Slot Region" were sparse. After such a storm the "Slot Region" becomes populated with higher energy solar wind electrons and protons. See:
Cause of Unusual Van Allen Belt Distortions
Full Size Image
This is analogous to 'charging a capacitor' which requires something to behave as though it were a dielectric. Below the "Slot Region" is the Global Atmospheric Electric Circuit where Nitrogen 78%, Oxygen 21% argon etc behaves like a second dielectric maintaining a vertical electric field ranging from 250-500 kV (
depending on source) and vertical currents called Wilson Currents after CTR Wilson. Presented is a situation where one has two regions behaving as a dielectric separated by very thin current sheets ("sheath/boundary/interface etc") known as the Ionospheric Wave Guide. These two regions are at different electric potential because they have different particles and particle densities.
Discharges between these two regions takes the form of the fair weather cycle and thunderstorms (Cyclonic and Anticyclonic). The electromagnetic pulse that initiates lightning, and the lightning bolt itself, induce ELF-VLF "Resonant Waves". Those resonant waves propagate into Earth's plasmasphere and excites those high energy solar wind electrons and protons. Those energetic particles were formerly held at bay, they were "trapped" bouncing, spiraling, gyrating back and forth along Earth's magnetic field lines. However lightning induced resonant waves stimulate the particles and cause them to be accelerated. Once accelerated they become "lost" into what is termed a "Loss Cone" ie a 'spray'.
That conical 'spray' of energetic particles interacts with Earth's Ionosphere and GEC thereby 'charging' the GEC up all over again. Some of those energetic particle precipitate into the poles along magnetic field lines and induce a certain quality of aurora. By this method Lightning is said to "clear" the "Slot Region" of energetic particles. The plasmasphere quickly returns to normal and the cycle repeats. This is how the "modulation" of all of that energy is handled. No one knows the critical values necessary to induce this analogous 'dielectric barrier discharging' (which is an actual thing). See:
Ground Observations of Lightning-Induced Electron Precipitation Fig 1
Some of those electrons and protons entering the poles are secondarily coming from Earth's proverbial back yard having been injected and "stored" into the Van Allen Belts and Slot Region. The question is:
Might not CME's at the Sun serve as analogy of 'Solar Lightning' which propagates all the way out to the heliopause simultaneously populating the the solar system with a bevy of "Halo Electrons" until some critical value is reached relative to the external environment's 'injection' of some quantity of CR's? The heliosphere is sometimes said to "shrink" but this has not been mentioned as of late. IBEX revealed quite a lot of activity occurring at the nose of the heliosphere.It is interesting that the paper that accompanies (
this image) is called:
"Prebreakup Arc Intensification due to Short Circuiting of Mesoscale Plasma Flows Over the Plasmapause" by E. Mishin & A. Streltsov (2020)
The nose of Earth's magnetosphere is 'arcing' by way of interacting with the solar wind? - and along with resonant waves this 'arcing' between different plasmas at the nose is accelerating formerly "trapped" energetic particle TOWARDS the Earth in a conical spray and simultaneously around the magnetosphere's 'outer layer' into the poles. This, in my humble opinion, is something to work with - because - NATURE does it.
Of course one can't forget:
ARTICLE:
Magnetic Rope observed for the first time between Saturn and the Sun
These tubular" flux transfer events" (FTEs) aka filaments, or electric currents, have been observed at all the major planets. So, not all of the polar currents come from a distant source, some of them are secondarily circulated out of this kind of
'dielectric reservoir' of energetic particles. If this works then one can only speculate where *some* of the Sun's polar currents might 'connect'. Although I suspect it might be a larger star.
"Our laws of force tend to be applied in the Newtonian sense in that for every action there is an equal reaction, and yet, in the real world, where many-body gravitational effects or electrodynamic actions prevail, we do not have every action paired with an equal reaction." — Harold Aspden