Solar sigmoids explained
Monday, April 20, 2009 - 14:56
in Astronomy & Space
(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. Now a group of astronomers have developed the first model to reproduce and explain the nature of the different stages of a sigmoid`s life.