View Full Version : Discussion: Smallest Ever Coronal Mass Ejection

2005-May-11, 06:32 PM
SUMMARY: Usually it's the biggest things that get the news, but an international team of researchers have demonstrated that the tiny might be just as important. They spotted the smallest coronal mass ejection (CME) ever seen on the surface of the Sun, produced from a region not much bigger than the Earth. This sounds big, but it's a fraction of the size of those huge CMEs we normally see in pictures of the Sun. Amazingly, the magnetic field lines in this pint-sized CME were 10x more twisted than their larger cousins.

View full article (http://www.universetoday.com/am/publish/smallest_cme.html)

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2005-May-11, 10:03 PM
Thanks for the story.

Old Sol is mighty important to those of us living on planet Earth.

I can think of no astronomical object of greater interest to the public.

Since Earth's climate is closely tied to the surface activity of the Sun, careful study of small CME's may be as enlightening as the study of more massive and attention-grabbing CME's.

With kind regards,


2005-May-12, 01:47 PM
Incredible that small CME's, the size of Earth, would be the smallest details visible on the Sun. I think it is an exaggeration, I remember the filaments in a Sunspot imaged last year by Swedish researchers, maybe an order of magnitude smaller than this CME.

The magnetic fields being much stronger in a smaller CME is very interesting, what makes magnetic fields "concentrate" into a small region?