News tagged with sigmoids


Solar sigmoids explained

Solar sigmoids explained

Space & Earth / Astronomy

created Apr 20, 2009 | popularity 4.9 / 5 (7) | comments 2

(PhysOrg.com) -- 'Sigmoids' are S-shaped structures found in the outer atmosphere of the Sun (the corona), seen with X-ray telescopes and thought to be a crucial part of explosive events like solar flares. ...