Lyman Alpha Explosion

Lyman Alpha Explosion

. A massive surge moves to a height of 150 million meters at the edge of the Sun, shining in the light of the Lyman alpha emission from hydrogen atoms at 121.6 nanometers The emitting gas is at a temperature of 10,000 to 20,000 degrees Kelvin, characteristic of the chromosphere. This image shows that the radiation is emitted from numerous long, thin magnetic filaments. It was taken from the Transition Region and Coronal Explorer, or TRACE, a mission of the Stanford-Lockheed Institute for Space Research and part of the NASA Small Explorer Program. (Courtesy of the TRACE consortium and NASA.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University