Ultrahot

The magnetic forces are thought to be the key to these stars' several peculiarities. Presumably these stars were formed from matter having the normal cosmic proportions of the elements. However, strong magnetic forces in their atmospheres have accelerated hydrogen nuclei to very high speeds, thereby creating ultrahot areas possibly like outsize solar flares.

In this configuration a single line of magnetic force, if followed indefinitely on successive turns around the torus and successive twists around the magnetic axis, will trace out an entire surface, called a “magnetic surface.” Lines of force near the magnetic axis will produce magnetic surfaces which are nested inside the surfaces produced by the lines of force farther out. This family of nested magnetic surfaces constitutes the magnetic bottle proposed for confining an ultrahot gas in a stellarator.

The magnetic field drives virtually everything on the sun. Our star has an overall main magnetic field, with opposite north and south magnetic poles like the Earth's. Geophysicists believe that the Earth's field is formed by the dynamolike motion of molten iron in the outer part of our planet's ultrahot core. Similarly, the sun's overarching field seems to be produced by internal motion of plasma.