Originally posted by buddhasystem
The Powerpoint slides you referred me too aint bad. A little dry, but a nice refresher. Now, what these have to do with the solar corona, isn't clear at all.
They would relate to the corona if there was a different PD between the surface of the sun and the corona. The surface of the sun is thought to be positive by most EU proponents, and so that implies that the outer corona is at a lesser potential, which is what causes the acceleration of the solar wind. Maybe you missed this section;
Negative coronas occur only If the electric field is nonuniform
Positive Coronas are manifested in a uniform corona
Generation of secondary electron avalanches
In a positive corona they are generated by the gas surrounding the plasma region
In a negative corona they are generated by the curved electrode itself, the new secondary electrons traveling outward
This is using the assumption that the surface could retain a net charge, maybe that’s why you failed to see its relevance.
Originally posted by buddhasystem
No it wouldn't. Every member has a right to note a lack of logic in another member's post, and same applies to this delightful example:
The corona is an electric arc glow, yes it even looks like one
I can not see how you can say that noticing a visible similarily between two phenomenon is a lack of logic, i would call that a positively logical thing to do. Nearly all of what we know about space is built on what we can see, and how what we see interacts with other visible objects.
I am sorry, but the following does not remotely look like discharge in a spherically shaped capacitor... Note the loops...
So what exactly creates these huge magnetic fields? the same thing that creates all magnetic fields; electric currents. And due to the nature of the magnetic fields having a high velocity, and sometimes persisting for long periods of time, that indicates that the motion of the particles under the surface is far more energetic than current models allow.
The standard model says that the convection occurs so slowly that it takes hundreds of years for particles to travel from the centre to the surface. Particles travelling at that speed should not create magnetic fields that large, the size of the loops suggests that the motion of the currents is in fact much faster than this, and that the currents in the sun have a constant source to make them persist for long periods.
Here’s some good papers on electrical currents and their relation to solar flares;
This is one of the most popularly cited electrical current theory of solar flares, by Alfven And Carlqvist, adsabs.harvard.edu...
(cited over 181 times!) and followed up by this one; adsabs.harvard.edu...
more recent; Towards the circuit theory of solar flares, Zaitsev, V. V.; Stepanov, A. adsabs.harvard.edu...
And this paper looks at the effects of field- aligned currents (or Birkeland currents) on solar flares;
www.springerlink.com...
Solar flares are electrical in nature, caused by the separation of charge in some shape of form. Even conventional astronomers have accepted this, although they dont extrapolate what effects this electricity could have on other areas of the sun, in their opinion the rest of the sun is slowly convecting gas, not effected by the immense electrical currents that run throughout it. However most plasma astrophysicists will tell them that this is not the case, and that if we are to understand the sun correctly more work needs to be done on understanding the electrics of the sun so we can build a complete process orientated model of the current circuit inside the sun.
This summarizes Alfvens established work on circuit interruptions and flares;
Already in the 1950s, it was realized that the phenomenon of solar flares might have an electromagnetic origin and that the flare energy is likely to be stored as magnetic energy in the solar atmosphere. [.]
[.] In experiments it had been found that, if the electric current in a mercury rectifier was increased above a certain critical limit, the current through the rectifier became interrupted within a small fraction of a second. As a result of the interruption, the electric energy of the whole circuit was concentrated to and released in the rectifier with disastrous consequences. The current interruption was caused by an electrostaticdouble layer of high impedance that through some instability locally replaced the normally well-conducting mercury plasma in the rectifier. In our paper we suggested that a similar kind of double layer might arise in current systems penetrating the solar atmosphere and there lead to explosive release of magnetic energy in the form of flares. The flare mechanism described in our paper is in reality nothing but a straightforward combination of a phenomenon that is well known from laboratory experiments in plasmas and rectifier studies onthe one hand and solar physics on the other. The reason our flare theory was not proposed much earlier is that groups working on double layers and groups working in astrophysics did not have good contact with each other.
Yet again another example that can, and has been, tested on Earth and verified beyond doubt. Much unlike 'magnetic reconnection' theory that nearly every solar astronomer uses to explain energetic phenomenon on the sun today. Any time magnetic fields get treated as physical entities, you have bad science. How exactly does one tie a knot in, or reconnect, an imaginary field line with no physical "existence"?
Also observations from the SOHO have found very fast moving electrically charged currents moving below the sun; soi.stanford.edu...
Scientists using the joint European Space Agency (ESA)/NASA Solar and Heliospheric Observatory (SOHO) spacecraft have discovered "jet streams" or "rivers" of hot, electrically charged gas called plasma flowing beneath the Sun's fiery surface.
the observations of the electricity are all there, all that they need to do now is accept that the sun has a substantial net charge, and thus exhibits an electrical field.
[edit on 15-1-2008 by ZeuZZ]
