Reply To: X-ray cooling?

[jamesr]

slane wrote:
Pinch, pinch, pinch.
In above posts, I have already pointed out that the eyewalls of sunspots have huge amounts of the circular electric currents (1,000,000,000,000 Amperes for middle size circular sunspots), so plasmas in eyewalls of sunspots are in pinch state, that is, in high temperature high density state, so stable nuclear fusion reactions can happen in eyewalls of sunspots.
Z-pinch fusion experiments are done almost every day; do you not believe these experiments?
Some CMEs and solar flares of the sun are caused by these pinch processes in the eyewalls of the sunspots.
Sunspots are ion-pumps and electron-pumps too; the X-ray photos of the sun reveal that almost all high temperature (above one million Kelvin) high energy phenomena of the sun are related to the sunspots.

Just because there is a current doesn’t mean the pinch is strong enough to collapse the filaments enough to heat them significantly as done in Z-pinch machines. The large current is spread out over a huge volume, so the local current density at any one point is still small.

The ions & electrons accelerated into the magnetic loops above the area of the sunspot do indeed reach a high velocity/temperature and so the electrons emit bremsstrahlung radiation at x-ray wavelengths. And I suppose there could be a very small chance of fusion for the most energetic ions, but it’s hardly a significant phenomena.

Flares and CMEs are spectacular and involve the transfer of huge amounts of energy from the magnetic field to the plasma surface of the sun, but in no way are they related to fusion.