Direct Measurements of the Gradual Extreme Ultraviolet Emission from Large Solar Flares
Abstract
Broadband sensors aboard the Naval Research Laboratory's SOLRAD 11 satellites measured solar emission in the 0.5 to 3 Å, 1 to 8 Å, 8 to 20 Å, 100 to 500 Å, 500 to 800 Å, and 700 to 1030 Å bands. Data from sixteen large flares show that the EUV emission is dominated by gradual emission which parallels the soft X-ray emission in duration and magnitude. The data are consistent with the separation of EUV and X-ray flare emission into two distinct components. A persistent component is made up of gradual EUV and gradual soft X-ray emissions. A brief component consists of hard X-rays, impulsive soft X-rays, and impulsive EUV emission.
- Publication:
-
Solar Physics
- Pub Date:
- June 1983
- DOI:
- 10.1007/BF00148656
- Bibcode:
- 1983SoPh...85..303H
- Keywords:
-
- Emission Spectra;
- Extreme Ultraviolet Radiation;
- Radiation Measurement;
- Solar Flares;
- Solar X-Rays;
- Chromosphere;
- Solar Spectra;
- Spaceborne Astronomy;
- X Ray Astronomy;
- Solar Physics;
- Flare;
- Research Laboratory;
- Direct Measurement;
- Solar Flare;
- Naval Research