Ultraviolet Observations of Solar Fine Structure

Science  27 Nov 1987:
Vol. 238, Issue 4831, pp. 1267-1269
DOI: 10.1126/science.238.4831.1267


The High Resolution Telescope and Spectrograph was flown on the Spacelab-2 shuttle mission to perform extended observations of the solar chromosphere and transition zone at high spatial and temporal resolution. Ultraviolet spectroheliograms show the temporal development of macrospicules at the solar limb. The C IV transition zone emission is produced in discrete emission elements that must be composed of exceedingly fine (less than 70 kilometers) subresolution structures.